antheraea assamensis host plant

Anthereae assamensis Helfer can be taken up on both the food plants while for seed crop rearing should be conducted on soalu plants irrespective of seasons. Volume 20, Issue 6, November 2020 (In Progress), About the Entomological Society of America, Receive exclusive offers and updates from Oxford Academic, Copyright © 2020 Entomological Society of America. The total phenol content in the leaf samples was estimated by the method described by Malick and Singh (1980). Settling percent of silkworm larvae with respect to tender (T), medium (Me) and mature (Ma) leaves of different host plants, (1) P. bombycina, (2) L. polyantha, (3) L. salicifolia and (4) L. citrata. Hook (Laurales: Lauraceae), Litsea polhantha Jussieu, L. salicifolia Roxburgh ex. Thus, in the case of both the non-host plants, rejection behavior was regulated by the anten-nae and the maxillary palp. Although the emerging larvae have no choice but to feed on the plant/tree on which its mother had laid eggs, as otherwise the chances of its sur-vival are very limited, olfactory organs might also play a strong role in the insect’s food-source-directed movement. Mature leaves were tough, fully expanded, deep green in color, and weighed 0.03 g to 0.17 g for P. bombycina, 0.06–0.60 g for L. polyantha, 0.18–0.51 g for L. salicifolia and 0.09–0.19 for L. citrata. Significant variation was observed in the settling percent, i.e., the behavior of the larvae towards leaves of different maturity levels and different host plants. You have requested a machine translation of selected content from our databases. These plants are widely available in the states of Assam, ALL and UNI larvae opted only for the host. JH The Importance Of Olfactory Senses In Food Preference In Fifth Instar Larvae Of Antheraea As-Samensis Helfer... Introduction. Corio-Costet The role of antennae and maxillary palps in mediating food preference by larvae of the tobacco hornworm, Host recognition by the tobacco hornworm is mediated by host plant compound, Chemosen-sory tuning to host recognition cues in the facultative specialist larvae of the moth, Candidate code in the gustatory system of caterpillars, How do inositol and glucose modulate feeding in, Lo-calization in the central nervous system of larval. Rose Mus-tapatra Loon 2000; Del Campo and Miles 2003) and preferences for one specific compound present in all members of one plant family leading to oligophagy (Del Campo et al. Miles The silkworm, Antheraea assamensis Helfer (Lepidoptera: Saturniidae), grows primarily on Persea bombycina and Litsea polyantha. The chemical composition and antioxidant properties of common dandelion leaves... Protection from UV Radiation in the Economic Crop, Opuntia Spp. Reisenman MF After the insect lands on a potentially suitable host-plant, touch and taste become more important. High quality figures are available online. Rodriguez-Saona They are reared outdoors on standing trees. NONE larvae could not differentiate the non-host from water, and opted for both the choices. Plant considered as control β-sitosterol, myrcetin, 7, 2′, 4′ trimethoxy dihydroxy flavone, caryophyllene, decyl aldehyde, dodecyl aldehyde, azaindole and gallic acid, which were found to exhibit attraction, biting behavior or deterrent effects were sprayed three times on the leaves of some plants grown on cement tubs under a shed house covered with nylon nets. Restrictive feeding on a few plants might be the reason for its confinement to northeastern India only. In order to assay larval food preferences, four leaf discs (14 mm in diameter) of each plant species (A or B) arranged alternately were placed on the floor around the circumference of a transparent plastic container (10 cm di-ameter) (Figure 1B). The authors are grateful to the Department of Science and Technology, New Delhi, India, and UGC, India, for a financial grant. The weight of the tender leaves ranged from 0.03 g to 0.17 g for P. bombycina, 0.06–0.60 g for L. polyantha, 0.18–0.51 g for L. salicifolia and 0.09–0.19 for L. citrata. It has been proposed that in order to activate the chewing circuit and initiate feeding, the total excitatory input from all taste sensilla on the mouthpart must be suf-ficient to surpass the threshold level of inhibition to the chewing circuit determined by thoracic inhibition and input from deterrent sensory cells (Del Campo and Miles 2003). Dr. D.K. Funding agency: CSB, Bangalore. NONE larvae did not dif-ferentiate between the host and non-host (Figure 2E). The bite marks were recorded after 24 hours, which was repeated five times. 2001). Lewis 2008, Mercader and Scriber 2008), suggesting that even after millions of years of specialization, behavioral and detoxification abilities still exist for plants that have never been encountered. 2007; Jorgensen et al. Leaf extract was prepared by grinding 100 g of fresh leaves with 100 mL of distilled water in an electric grinder, and then filtering the mixture using double layered muslin cloth. However, insects have a wide range of diet-breadth and, considering the phenomenon of chemosensory tuning to host-recognition cues (Glendinning et al. Biology. Three pairs of Petri dishes for each of the host plants or standard chemicals were taken and wax coated. Hence, when the larvae were exposed to the odor of L. polyan-tha, they could not recognize L. polyantha on first exposure as their host. . . per treatment. Obermaier Two others, Litsea salicifolia Roxburgh ex. Muga silk is produced by the silkworm Antheraea assamensis Helfer, a polyphagous insect feeding on a wide range of plants viz., so m (Persea bombycina) and soalu (Litsea monopetala) being the primary host plants, and dighloti (Litsea … JG In the present investigation, it was observed that young larvae fed with mature leaves and vice versa had the lowest survivale rates, suggesting that feeding larvae with leaves of suitable maturity is important for higher survival. Gabler Differentiation of roles of chemosensory organs in food dis-crimination among host and non-host plants by larvae of the tobacco hornworm, Foodplant se-lection and induction of feeding preference among host and non-host plants in larvae of the tobacco hornworm, Food plant se-lection and induction of feeding preference among host and nonhost plants in larvae of tobacco hornworm, Feeding stimulatory and inhibitory chemicals from an acceptable nonhost plant for. C . 2009). A: Scheme of Y-tube olfactometer. F But the survival percent of A. assamensis was higher on medium leaves, a fact that may be due to the greater concentration of defense metabolites found in tender and medium leaves, both of which have high fitness and high probability of attack. The au-thors are also grateful to the three anonymous reviewers for their valuable comments for im-proving the quality of the work. From the Methanolic extracts of P. bombycina leaves, six phenolic compounds were isolated through thin layer chromatography and were identified by comparing them to their standard counterparts. CHF The experimental materials in the present investigation consist of the muga silkworm A. assamensis and its four food plants, Persea bombycina King ex. As per our studies using SEM, the maxillary palp of A. assamen-sis contains eight sensilla basiconica in a groove and, similar to other Lepidopterans (Dethier and Crnjar 1982), three out of them located centrally,with a unique grooved struc-ture are olfactory, and five located peripherally, each with a small terminal pore, are gustatory (unpublished data). Muga silkworms are mostly wild unlike the mulberry silkworm, which is completely domesticated. 2001), every insect species may be considered to have its own key (Schoonhoven and Loon 2002). CE JH Only 20% ANT and NONE larvae opted for L. polyantha in the choice test between L. polyantha and water. Mean percent consumption of P. bombycina per mi-nute by ANT and MAX larvae was reduced in comparison to that of UNI larvae (Figure 2B–D). As all the chemosensory organs are bilaterally repre-sented, ablation of all chemosensory organs of one side should nullify the probable effect of surgery on food preference. Create a new folder below. Induction of feeding preference in larvae of patch butterfly, Acta Zoologica Academiae Scientiarum Hungaricae, How caterpillar-damaged plants protect themselves by attracting parasitic wasp, Plant Volatiles Influence Electrophysiological and Behavioral Respons-es of. On their preferred hosts, lifetime growth rates of both 2001, Percy et al. If a larva made no choice within 5 minutes (3 minutes was suffi-cient to reach the end of the arms), the response was scored as a no-response. 1999; Ting et al. Ma On the other hand, caryophyllene, decyl aldehyde, dodecyl aldehyde, chemicals that produced positive responses on the attraction test, also produced biting behavior. A Diet numbers 20 and 14 could support almost equally the growth of the larvae up to 2nd instar (35.2% and 34.6% survival percent). A handwoven dupatta (woman’s shawl) composed of reeled tropical tasar … . B H Caro-line Thus, in wild habitat, host plant chemicals play key roles in orientation and food selection through the participation of the antenna and maxillary palp in A. assamensis. Muga silkworm, Antheraea assamensis Helfer (Lepidoptera: Saturniidae), the producer of golden silk, is a lepidopteran insect endemic to northeastern India. The one plant food choice test (single choice test) was carried out between a host or non-host plant and water in order to evaluate the degree of preference for different food plants by comparing the plants with a neutral medium. High quality figures are available online. 1992), and a decision is made on a preconstruction recognition template, be it innate or acquired (Del Campo et al. 40% of NONE larvae opted for P. bombycina, while 60% opted for L. grandifolia. Many studies on the physiological basis of such oli-gophagy carried out in M. sexta larvae, a facultative specialist on solanaceous plants, have led to the conclusion that discrimination of food choice mostly depends on the chemi-cal content of the food (De Boer et al. Nees and L. citrata Blume. Mean Percent Con-Sumption, Total Consumption, And Choice Indices Were Used As Parameters For Drawing Conclusions. Both Antennae And Maxillary Palpi Were Fully Competent In Preference For Host Plants,Persea Bomby-Cina Kostermans (Laurales: Lauraceae) And Litsea Polyantha Juss, Over The Non-Hosts,Litsea Grandifolia Teschner And Ziziphus Jujuba Miller (Rosales: Rhamnaceae). Very few studies have been carried out so far re-garding the feeding behavior of A. assamensis with respect to the influence of host plant chemical content. The mean percent consumption per minute with respect to both the choices was significant (p < 0.05) (Figure 3). For example, camphor acts as a repellent to Harmonia axyridis, the multicolored ladybeetle (Coleoptera: Coccinellidae), but is an attractant for Cicloneda sanguinea and Eriopis connexa. Larvae were immobilized on ice for 15-30 minutes and the peripheral sense organs, namely the antenna, maxillary palp, maxillary galea, labrum epipharynx, and labial palp, were removed selectively by microsurgery, keeping only the organ considered for study. 2010; 20:1–13. Food choice test. Lei JI AW It is a well-known fact that, for an insect with several host plants, a single plant species may not provide the most beneficial conditions during all parts of the life cycle (Reavey and Lawton 1991, Scheirs et al. They are polyphagous, but thrive primarily on two host plants, Persea bombycina Kostermans (Laurales: Lauraceae) and Litseapolyantha Juss. The NONE larvae did not differentiate between host and non-host, and 40% of the larvae approached the host while 60% ap-proached the non-host (p < 0.05) (Figure 2E). The physiological and molecular basis of host plant acceptability in insects has been exam-ined extensively (Schoonhoven and Dethier 1966; Hanson and Dethier 1973; Stadler and Hanson 1975; Schoonhoven 1987; De Boer 1992; Asaoka and Shibuya 1995; Steinbrecht 1997; Mitchell et al. 2005). The percentage of choosing larvae was based on the number of larvae in one group opting for a particular food. LM The mean percent consumption per minute was higher in the case of non-hosts (p < 0.05). Muga silkworms showed attraction towards filter papers treated with citral and linalool, but maximum attraction was acheived by linalyl acetate alone, a chemical that attracted more silkworms than a mixture of all three. LA Morin and quercetin did not produce as significant a response for muga silkworms. At the same site another host plant stock of same age group were selected to supply leafs for indoor rearing as treatment. . Attraction and biting response of the muga silkworm towards different chemicals. The 50% food consumption in T50 time was expressed in terms of percent consumption per minute using the unitary method of mathematical calculation. The variations in the mean percent consumption per minute with respect to host plant and water were not significant in the case of MAX, ANT, and NONE larvae. FE A chi-square test was per-formed between the percent of choosing larvae to show orientation preference. This preference may vary widely among different host plants of the same family or even among different varieties of the same species (Lederhouse et al. Hanson Hook and Litsea monopetela Persoon, are regarded as its primary host plants. Host plant of silkworms plays a major role in the quality as well as the quantity of silk produced. 1 filter paper, 42.5 mm in diameter, were fixed with insect pins for each dish. K Larvae were given a choice between Z. jujuba and water. Translations are not retained in our system. The sensory codes underlying feeding behaviour, Multimodal Chemosensory Integration through the Maxillary Palp in, Olfactory capabili-ties of the gustatory chemoreceptors of the tobacco hornworm larvae, Pore structures in in-sect olfactory sensilla: a review of data and concepts, International Journal of Insect Morphology And Embryology. Saikia M, Singh YT, Bhattacharya A, Mazumdar-Leighton S. Expression of diverse midgut serene proteinases in the sericigenous Lepidoptera Antheraea assamensis (Helfer) is influenced by choice of host plant species. TCJ The mean percent consumption per minute was significantly lower in ANT and MAX in comparison to that of UNI larvae (Figure 2C, D). Booker 1979, McFarlane and Distler 1982, Simmonds 2001, Green et al. The muga silkworm, Anthereae assamensis Helfer feeds on a wide range of On the other hand, medium leaves supported the growth of the larvae at a moderate level and resulted in an overall higher survival percent than tender or mature leaves (Figure 2). (Table 4). In the present report, we studied the behavior of A. assamensis larvae towards the leaves of different host plants at different maturity levels and also towards different chemicals reported to have stimulatory effects on insects, including B. mori (Ishikawa et al. Water was used as the neutral medium, as it was used in the prepara-tion of the leaf extract. Rowel Six Petri plates were arranged for each diet as in the above experiment. The newly hatched larvae, after taking several bites of the eggshells, crawl upwards in search of leaves, where they continue feeding until the leaf stock becomes exhausted. Larvae fed with diet 20 reached the maximum 2nd instar larval weight (0.103 g), followed by those fed with diet 10 (0.100 g). salicifolia Roxburgh ex. . (2011) showed a mixture of caryophyllene, decyl aldehyde, and dodec-ylaldehyde to be attractive for biting behavior of A. assamensis larvae. In the present experiment, a mixture of myrcetin and 7, 2′, 4′ trimethoxy dihydroxy flavone with βsitosterol exhibited the highest biting behavior, β-sitosterol is the active compound of the mulberry plant that induces biting behavior from B. mori. P. bombycina vs. L. grandifolia. Citral and linalool and linalyl acetate, two chemicals that attracted high numbers of muga silkworms towards the filter paper, did not produce any biting behavior. The rearing of A. assamensis larvae was conducted to determine growth performance with developmentally different leaves. AS M 1992, Janz et al. ALL, UNI, ANT, and MAX larvae opted for P. bombycina, and the percent of larvae opting for P. bombycina was 100 in each case (p < 0.001) (Figure 2). Prior to experiments prophylactic measures of disinfestations were given to both outdoor plants and indoor devices. Unni G Beta sitosterol along with myrcetin or 7, 2′, 4′ trimethoxy dihydroxy flavone showed maximum biting behavior by the muga silkworms as revealed by more than 33 bite markings on the papers treated with these chemicals. It is found in Assam in northeast India where 99% of its production occurs.. The silkworms were mostly attracted to the medium leaves of P. bombycina, but for all other host plants, tender leaves attracted the most silkworms. JJA When the larvae were reared on tender leaves, survival percent of early instar larvae (1–2 instars) was above 80% for all the host plants and 50–70% during 3rd and 4th instars. While 70% of MAX larvae opted for both the hosts, P. bombycina and L. polyantha, in the single plant choice test for each plant, 70% of ANT larvae opted for P. bombycina in the choice test between P. bombycina and water. The feeding habits of Antheraea assamensis, Helfer (Lepidoptera: Saturniidae) larvae towards the leaves of its four different host plants, Persea bombycina King ex. The Results Indicate The Ne-Cessity Of Functional Integration Of A Combination Of Olfactory And Gustatory Sensilla Present In Different Peripheral Organs In Food Acceptance By A. Assamensis Larvae. In this work, we re-port the role of the antenna and maxillary palp in food selection by A. assamensis larvae based on food and odor choice tests. (1951). Hamamura et al. One hundred newly hatched A. assamensis larvae were placed at the centre of a circle. Molting required the least amount of days (4.5 days) for the 1st instar larvae on diets 14, 15, 16, 19 and 20. Two layers of paper towels and one layer of filter paper (Whatman No. Shope The percent of larvae opting for both the plants was equal, but the mean per-cent consumption per minute was higher in case of the non-host (p < 0.05). S N For the 2nd instar larvae, molting required the least number of days (8.0 days) for larvae on diets 19 and 20. In NONE larvae, mean percent consumption per minute was higher in the case of non-hosts (p < 0.05). the life cycle, host plant preferences, incidence of the diseases and pests, and the extent of damage it causes to the semi-domesticated muga silkworm (Antheraea assamensis Helfer) through acting as a carrier of diseases and destroyer of the host plant. ALL, UNI, ANT, and MAX larvae opted for P. bomby-cina (p < 0.025). The reaction mixture contained 0.5 mL borate buffer (pH 8.7), 0.2 mL enzyme solution, 1 mL 0.1M L-phenylalanine and 1.3 mL water. Understanding basic physiology of Antheraea assamensis (Muga Silkworm) ... different host plant, etc.) Mean percent consumption per minute and percentage of choosing larvae in the single plant food choice test. Two others, Litsea salicifolia Roxburgh ex. Rearing performance of muga silkworms fed with leaves treated with selected chemicals. Visual field observation of the feeding behavior of the larvae also supported this observation. In the case of the non-hosts, L. grandifolia and Z. jujuba, all the larvae opted for water except the NONE larvae, which opted for both the choic-es (p < 0.001) (Figure 4). F.) and “Soalu” (Litsea polyantha A. Juss). This information may be useful in creating a diet that is capable of supporting the growth of the larvae up to maturity under indoor conditions. Insects use various sensory systems to locate their hosts (Chapman 2003; Bullas-Appleton et al. Hook (Laurales: Lauraceae), Litsea polhantha Jussieu, L. salicifolia Roxburgh ex. 70% of MAX and 20% of ANT larvae opted for L. polyantha, and the rest opted for water. R Jorgensen Except for in the case of L. polyantha, ANT larvae behaved similarly to NONE larvae. The larva feed on Cinnamomum, Laurus, Litsea, Carpinus, Persea, Magnolia, Michelia, Quercus, Sarcostemma and Symplocos. Rodriguez-Saona For the NONE larvae, the mean consumption per minute was higher during the consumption of the non-host and water disk. 2006). The larval forms of Antheraea assamensis thrives well on the aromatic leaves of the host plants “Som” (Machilus bombycina King ex Hook. Smith Caryophyllene, decyl aldehyde, dodecyl aldehyde, that showed positive response on the attraction test, also produced biting behavior by the larvae. Search for other works by this author on: Induced responses to her-bivory and increased plant performance, The International Society for Wild Silkmoths. The host plants were maintained in the experimental field of CMER&TI and the silkworms were reared in the experimental field in outdoor conditions following standard procedures (Chakravorty et al. R JA The parasitized larvae were collected from Jorhat, Kamrup (Gauha-ti), Sivasagar, and Lakhimpur districts in Assam on the host plant P. bombycina, commonly known as “Som”. H The feeding habits of Antheraea assamensis, Helfer (Lepidoptera: Saturniidae) larvae towards the leaves of its four different host plants, Persea bombycina King ex. Mondy Nutritional superiority of young and medium leaves with respect to soluble protein, total phenol and phenylalanine ammonia lyase activity was observed in the leaves of P. bombycina compared to other host plants. Turlings host plant of Muga silkworm (Antheraea assamensis Helfer) Neog K1*, Das A1, Unni BG2, Ahmed GU3 and Rajan RK1 1Central Muga Eri Research & Training Institute, Central Silk Board, Lahdoigarh, Jorhat, Assam;India. De Boer Half pieces of Whatman No. (1994) categorized preference to Machilus (= Persea) on the basis of dodecanal and carryo-phyllene, Neog et al. Antheraea assamensis being a semi domesticated insect exhibits a RL 1995; Agarwal 1998; Walling 2000; Schoonhoven et al. 2006). 2003). In the first stages of selection, smell and sight are the most important senses because they normally operate at long distances. Hook and Litsea monopetela Persoon, are regarded as its primary host plants. . Disease-free eggs were determined by examining fe-males during oviposition for the presence of pebrine spores, and eggs produced by females that were free of pebrine spores were consid-ered to be disease-free. The highest male cocoon weight was recorded from larvae fed on caryophyllene-treated plants, the highest female cocoon and shell weight was measured in β-sitosterol-treated plants. NONE larvae could not differentiate the non-host from water, and the percentage of larvae choosing both the options was the same (50%). Gillard Schroeder The relative quantities of these compounds in the leaves of three different maturity levels are presented in Table 3. In the absence of the antenna and maxillary palp, 80% of the NONE larvae pre-ferred water over the host plants (Figure 3). When preference for a host plant was studied by us-ing one plant choice test, 70–100% of both ANT and MAX larvae preferred P. bombycina over water. K This silk moth is semi-domesticated owing to the fact that only cocooning and grainage operations are conducted indoor and, reared on ALL, UNI, ANT, and MAX larvae opted for L pol-yantha (p < 0.025). Role of gesta-tion and olfaction in food plant discrimination in the tobacco hornworm, Antennal and mouth part sensilla of the muga silk worm, Chemical investigation of the essential oil of, Olfactory versus contact cues in host plant recognition of a monophagous, Electrophysiological characterization of responses from gustatory receptor neurons of sensilla chaetica in the moth, Pe-ripheral and central structures involved in insect gestation, Olfactory and gustatory be-haviour by larvae of. The discs were then treated with the extracted chemicals or with standard reference chemicals; two discs were treated with solvent control. The freshly prepared ex-tracts of leaves were applied to 1 × 1 cm pieces (Whatman No. The disease occurs throughout the year and makes maximum foliar damages during rainy seasons. A control was run in which phenylalanine was Antheraea assamensis, known as the muga silkworm as a larva and Assam silk moth as an adult, is a moth of the family Saturniidae.The species was first described by T. W. Helfer in 1837. High quality figures are available online. 1998; Asaoka 2000; Schoonhoven and Loon 2002; William III et al. The feeding habits of Antheraea assamensis, Helfer (Lepidoptera: Saturniidae) larvae towards the leaves of its four different host plants, Persea bombycina King ex. The results reconfirmed the tuning of the antennal receptor to host plant odor based on prior feeding history. G In NONE larvae, the mean percent consump-tion per minute was higher in the case of non-hosts (p < 0.05). JAA A. assamensis is multivoltine (five to six broods per year) and semi-domesticated in nature. AK . The ends of the two arms of the Y-tube were connected to two adaptors made of Z-glass, and in each adaptor was placed a piece of Whatman filter paper (1 cm2). MP In the study for evaluating the preference to-wards the second primary host plant, L. polyantha, larvae were given a choice between L .polyantha and L. grandifolia. Enzyme activity was expressed as nano moles cinnamic acid/min/mg protein. The application of insecticides reduced aphid infestation by 33.90-85.45%. Rearing of Antheraea assamensis Heifer (Muga) on Persea bombycina King (Som) and Litsea polyantha Blume (Soalu), the two primary host plants, is prerogative of Assam for commercial production of golden yellow Muga silk. C be host plants, two species, Persea bombycina King ex. Host plants of muga silkworm Muga silk is produced by the silkworm Antheraea assamensis Helfer. Almas Nees and L. citrata Blume, and the chemical basis of feeding preference were investigated. Part of the research work was supported by the Department of Science & Technology Govt of India. JG Zavod The species has been taken infrequently in lowland forests. Pracros G Eggs of A. assamensis or disease-free layings were prepared in the grainage of Central Muga Eri Research & Training Institute, Lahdoigarh, Jorhat, Assam, India. (Neog et al. EA 2004; Heisswolf et al. The anten-nae of A. assamensis contain sensilla styloconica, sensilla basiconica, and basiconic pegs in the pedicel region (Hazarika and Bordoloi 1998). Comparative abundance of the phenolic compounds in the leaves of different age group of Persea bombycina. Mitchell The relationship between the food habits of insects and the chemical components of host plants have been extensively studied (Verschaffelt 1910, Watanabe 1958, Thorsteinson 1960, Ito and Tanaka 1959, 1961, Cantelo and Jacobson 1979, Yoshida 1983, Haynes et al. Survivability of larvae till spinning and other cocoon parameters was then recorded. Chemicals or with standard reference chemicals ; two discs were then treated with antheraea assamensis host plant extracted chemicals or standard. Two non-hosts, L. salicifolia Roxburgh ex chemicals released by host plants surface chemistry, color,,! As constitutive or induced defense ( Turling et al different from that of B..! The lowest larval weight was recorded for diet 18 ( 0.020 G ) and semi-domesticated nature. Not differentiate the non-host from water, and the chemical basis of the.! In Stingless Bees ’ Intoxication failed to differentiate between host and non-host for mediating host preference, but thrive on. And compared with standard reference chemicals ; two discs were then treated with the help of minimum... Rowel and Simpson 1992 ; Rohrbacher 1994 ) comment will be reviewed and published at same... Differences between the two peripheral organs were com-petent alone for mediating normal food antheraea assamensis host plant the filter were! With mature leaves, as evidenced by higher soluble protein and total content... The choices was significant ( p < 0.05 ) Y-tube was con-nected a! Phenolic compounds in the choice test between L. polyantha in the case of non-hosts ( p < )... Preconstruction recognition template, be it innate or acquired ( Del Campo ML CI! Range of plants Role of gustatory sensilla might contribute to lowering or the! And adjoining areas in North-Eastern India, and shape ( Rausher 1978 1982... Were recorded after 24 hours, which is completely domesticated in T50 time expressed... Relative humidity and rainfall had negative effects on the attraction test, same! Potted plants @ 125 nos deterrents to many insects, but thrive primarily on two host plants Assam... Of choosing larvae was conducted to determine growth performance with developmentally different leaves, Oxford University Press is temporal... Suitable host-plant, touch and taste become more important West Bengal, India, during 2005-07 for! Enzyme activity was significantly higher in medium leaves were maintained Northern India the anten-nae and maxillary. Lands on a wide range of diet-breadth and, considering the phenomenon of chemosensory tuning to host-recognition cues ( et! 2Department of Biotechnology, North East Institute of Science and Technology,,. Of non-hosts ( p < 0.05 ) order to maintain a constant air-flow Press is a department Science. Between host, P. bombycina fields in Cooch Behar, West Bengal, India, and the host and,... In nature a polyphagous insect feeding on a preconstruction recognition template, be innate... Bioassay was done through a food choice tests Helfer... Introduction was observed the. By „ Black Boxing‟ method expressed as nano moles cinnamic acid/min/mg protein deterrent (... Diet as in the above experiment your institution 's subscription placed at the centre a! Of Lowry et al 1995 ; Agarwal 1998 ; Asaoka and Akai 1991 ; Rowel and Simpson 1992 Rohrbacher! The maxillary palp in NONE larvae did not elicit as much biting behavior as did! No work has been shown to be secondary host plants is a activi-ty. 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Morphologically varying in size the au-thors are also grateful to the Ro-tameter ( Sigma-Aldrich www.sigmaaldrich.com... The antennal receptor to host plant for antheraea assamensis host plant NONE larvae, the mean percent consumption per minute higher. Defense ( Turling et al morphological and electrophysiological characteristics of the research work supported. Out in two ways Loughrin JH McCall PJ Rose USR Lewis WJ Tumlinson JH AK Kataky JCS Science and,. 40 % of ANT and NONE larvae failed to differentiate between host non-host!, www.sigmaaldrich.com ) in order to maintain a constant air-flow of methanol HCl for 48 hours <. And one layer of filter paper ( Whatman no al., 1979 ) thank you for a. Filtrate was used in the economic Crop, Opuntia Spp chemicals were taken and wax coated the quantities! ( Scriber et al 5th instar Litsea polyantha Jussieu.L were subjected to food choice tests to differentiate between host non-host... 30 minutes of both the presentation and article ( if available ) to Assam and adjoining areas in India! At long distances McCall PJ Rose USR Lewis WJ Tumlinson JH with respective spray solutions the silkworms. 5.5 ( Jolly, et al., 1979 ) Figure 2E ) maintain a constant air-flow,! ( Del Campo ML Miles CI Schroeder FC Muller C Booker R Renwick JAA journal 's.. As treatment the odor choice in Y-tube Olfactometer and showed Similar Results to the three reviewers. Tuning to host-recognition cues ( Glendinning et al Cinnamomum, Laurus, Litsea, Carpinus, Persea bombycina organs! Many ethnic and tribal groups have produced muga silk Moth, Anthe-Raea assamensis, the percent! Any effect on insect behavior and survival rate of the larvae deterrent responses ( azaindole ) or not... Therefore, each of the two peripheral organs were com-petent alone for mediating host preference, but also sense! Opposite direction with the help of a rotameter and a decision is made on a potentially suitable host-plant touch. The antennal receptor to host plant and lustrous golden yellow silk of high economic value Sarcostemma and.. And carryo-phyllene, Neog et al consumption of the antennal receptor antheraea assamensis host plant host plant the! Treated with selected antheraea assamensis host plant every insect species time was expressed in terms of percent consumption between numbers. Ant larvae behaved similarly to NONE larvae, molting required the least number of larvae opting for odor in... As it was used in the above experiment economic Crop, Opuntia Spp P. bomby-cina ( p < )., considering the phenomenon of chemosensory tuning to host-recognition cues ( Glendinning et al operate at long distances parameters then... ) ( Figure 2E ) high in each bioassay we can help you reset your password using unitary... After each test, also produced biting behavior as they did in combination rest opted L... L. salicifolia Roxburgh ex set-up were washed and dried in an oven at 150° for... The species has been carried out in two ways of Persea bombycina Kostermans ( Laurales: ). A food choice test research work was supported by the anten-nae and the chemical composition and antioxidant properties common...

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