Results 81 to 90 of about 670,888 (226)
Pulsations of dorsal vessel were monitored by the noninvasive techniques of contact thermography on the dorsal cuticle and by strain gauge detection of abdominal elongation movements. Diapausing pupae exhibited periods of forward-oriented, or anterograde
Karel SLÁMA, Thomas A. MILLER
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Rhodnius, Golden Oil, and Met: A History of Juvenile Hormone Research
Juvenile hormone (JH) is a unique sesquiterpenoid hormone which regulates both insect metamorphosis and insect reproduction. It also may be utilized by some insects to mediate polyphenisms and other life history events that are environmentally regulated.
Lynn M. Riddiford
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Polydnaviruses represent a striking example of convergent evolution. These viruses, divided into bracoviruses and ichnoviruses, were independently acquired by braconid and ichneumonid parasitoid wasps respectively, to deliver pathogenic genes to caterpillar hosts.
Antonino Cusumano +6 more
wiley +1 more source
Nicotine's defensive function in nature.
Plants produce metabolites that directly decrease herbivore performance, and as a consequence, herbivores are selected for resistance to these metabolites.
Anke Steppuhn +4 more
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ABSTRACT Biochar is a charcoal‐like substance made by the pyrolysis of organic material from agricultural and forestry waste. While biochar is well documented for altering soil physicochemical conditions, few studies have investigated its possible effects on the management of arthropod pests.
Nischal Wagle +4 more
wiley +1 more source
Feeding-induced rearrangement of green leaf volatiles reduces moth oviposition
The ability to decrypt volatile plant signals is essential if herbivorous insects are to optimize their choice of host plants for their offspring. Green leaf volatiles (GLVs) constitute a widespread group of defensive plant volatiles that convey a ...
Silke Allmann +7 more
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In CLas‐infected D. citri, CLas lowers 20E levels initially, relieving the suppression of ETH release. The subsequent increase in ETH levels upregulates its receptor DcETHR and activates the JH signaling pathway. The signaling cascade of 20E‐ETH/ETHR‐JH along with miR‐210, targeting DcETHR, boost female fecundity in CLas+ D.
Xiaoge Nian +8 more
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H+‐translocating V‐ATPases are regulated by reversible disassembly in many cell types. In young yeast cells, V‐ATPases are assembled and the lysosome‐like vacuole is acidified, but as cells age, V‐ATPases disassemble, vacuolar pH increases, and lifespan is shortened. Both mutation of the V‐ATPase disassembly factor Oxr1 and caloric restriction preserve
Fiza Hashmi, Patricia M. Kane
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NMR and electrospray ionization tandem mass spectrometry were used to show for the first time the presence of sphingomyelins in extracts of the tobacco hornworm Manduca sexta (Lepidoptera).
D.T.U. Abeytunga +6 more
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ABSTRACT The evolutionary arms race between plants and insects has led to key adaptive innovations that drive diversification. Alkaloids are well‐documented anti‐herbivory compounds in plant chemical defences, but how these specialized metabolites are allocated to cope with both biotic and abiotic stresses concomitantly is largely unknown.
Yongliang Liu +11 more
wiley +1 more source

