Influence of host plants on feeding, growth and reproduction of Papilio polytes (The common mormon)

Shobana, K.; Murugan, Kadarkarai; Kumar, Anup

doi:10.1016/j.jinsphys.2010.02.018

Cited by 31 publications

(29 citation statements)

References 21 publications

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“…Also in other insect species, similar observations have been made ( e.g. for cockroaches [69]; for butterflies [70]; and for bugs: [71]). A higher nutrient uptake may not only stimulate vitellogenesis and oocyte growth, but might also affect other anabolic processes (related to reproduction), such as ecdysteroidogenesis.…”

Section: Discussionsupporting

confidence: 79%

CRF-Like Diuretic Hormone Negatively Affects Both Feeding and Reproduction in the Desert Locust, Schistocerca gregaria

et al. 2012

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Diuretic hormones (DH) related to the vertebrate Corticotropin Releasing Factor (CRF) have been identified in diverse insect species. In the migratory locust, Locusta migratoria, the CRF-like DH (CRF/DH) is localized in the same neurosecretory cells as the Ovary Maturating Parsin (OMP), a neurohormone that stimulates oocyte growth, vitellogenesis and hemolymph ecdysteroid levels in adult female locusts. In this study, we investigated whether CRF-like DH can influence feeding and reproduction in the desert locust, Schistocerca gregaria. We identified two highly similar S. gregaria CRF-like DH precursor cDNAs, each of which also encodes an OMP isoform. Alignment with other insect CRF-like DH precursors shows relatively high conservation of the CRF/DH sequence while the precursor region corresponding to OMP is not well conserved. Quantitative real-time RT-PCR revealed that the precursor transcripts mainly occur in the central nervous system and their highest expression level was observed in the brain. Injection of locust CRF/DH caused a significantly reduced food intake, while RNAi knockdown stimulated food intake. Therefore, our data indicate that CRF-like DH induces satiety. Furthermore, injection of CRF/DH in adult females retarded oocyte growth and caused lower ecdysteroid titers in hemolymph and ovaries, while RNAi knockdown resulted in opposite effects. The observed effects of CRF/DH may be part of a wider repertoire of neurohormonal activities, constituting an integrating control system that affects food intake and excretion, as well as anabolic processes like oocyte growth and ecdysteroidogenesis, following a meal. Our discussion about the functional relationship between CRF/DH and OMP led to the hypothesis that OMP may possibly act as a monitoring peptide that can elicit negative feedback effects.

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Section: Discussionsupporting

confidence: 79%

CRF-Like Diuretic Hormone Negatively Affects Both Feeding and Reproduction in the Desert Locust, Schistocerca gregaria

et al. 2012

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“…The growth duration and rate, consumption rate, utilization efficiency, developmental time, longevity, fecundity and survival of D. casignetum showed significant differences among the four host‐plants tested with respect to their food quality (Awmack & Leather ; Shobana et al . ). Low water content acts as limiting factor for the growth rate reduction of plant‐fed caterpillars (Mattson & Scriber ; Shobana et al .…”

Section: Discussionmentioning

confidence: 97%

“…Low water content acts as limiting factor for the growth rate reduction of plant‐fed caterpillars (Mattson & Scriber ; Shobana et al . ). This study demonstrated the water content in the order of sunflower > sesame > castor > jute, which has probably influenced the higher growth rate (GR) of D. casignetum when fed with sunflower leaves.…”

Section: Discussionmentioning

confidence: 97%

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Influence of four host‐plants on feeding, growth and reproduction of Diacrisia casignetum (Lepidoptera: Arctiidae)

Roy

Barik

2012

Entomological Science

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Effects of four host‐plants, sunflower, castor, jute and sesame, on feeding, growth and reproduction of Diacrisia casignetum Kollar (Lepidoptera: Arctiidae) were studied under laboratory conditions (27 ± 0.5°C, 12 h light : 12 h dark, 65 ± 5% RH). Total larval developmental time of D. casignetum was highest on sesame than the other three host‐plants used in this study, but pupal duration was higher on sesame than sunflower but not for other dietary treatments. The longevity of females was generally longer than males. Male and female longevity was higher in sunflower than sesame (P < 0.05), but it did not differ significantly among other treatments. Fecundity was highest in sunflower followed by castor, jute and sesame. The growth and development of D. casignetum were related to nutrient and phenol contents of these four host‐plants. Total carbohydrates and amino acids were present in rich quantities in sunflower when compared to other three host leaves, while nitrogen, protein and lipid contents were comparatively higher in sunflower and castor than jute and sesame. Phenol content was greatest in sesame, and least in castor and sunflower. Higher levels of total carbohydrates, proteins, lipids, nitrogen and amino acids including water content and lower phenol content of sunflower have influenced higher growth rate and fecundity of D. casignetum.

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“…The overall total amino acid concentrations in plants vary extremely, depending, however, on environmental conditions (SHOBANA et al 2010). Amino acid is an important factor affecting the feeding behaviour of herbivorous insects.…”

Section: Discussionmentioning

confidence: 99%

Amino acids through developmental stages of sunflower leaves

Roy¹,

Laskar²,

Barik³

2013

Acta Botanica Croatica

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-The PICO-TAG analysis of proteins revealed that 17 protein-bound and 18 free amino acids were present throughout the developmental stages of sunflower leaves. The total protein-bound amino acid content was much higher than total free amino acid content throughout the development of sunflower leaves. The contents of protein-bound and free amino acids as well as essential and non-essential ones displayed different patterns with leaf maturation, suggesting that total protein levels are poor predictors of the nutritive status of leaves.

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Influence of host plants on feeding, growth and reproduction of Papilio polytes (The common mormon)

Cited by 31 publications

References 21 publications

CRF-Like Diuretic Hormone Negatively Affects Both Feeding and Reproduction in the Desert Locust, Schistocerca gregaria

CRF-Like Diuretic Hormone Negatively Affects Both Feeding and Reproduction in the Desert Locust, Schistocerca gregaria

Influence of four host‐plants on feeding, growth and reproduction of Diacrisia casignetum (Lepidoptera: Arctiidae)

Amino acids through developmental stages of sunflower leaves

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