Results 81 to 90 of about 11,970 (214)

HvarAKR1B1‐mediated tolerance in Hippodamia variegata: Deciphering the metabolic adaptation and fitness costs under prolonged starvation

open access: yesPest Management Science, Volume 82, Issue 8, Page 7903-7914, August 2026.
Starvation stress significantly affected the growth and development of Hippodamia variegata. Combined transcriptome and metabolome analysis and RNA interference verification revealed that HvarAKR1B1 may be involved in the response of Hippodamia variegata to starvation stress.
Bing‐mei Song   +5 more
wiley   +1 more source

PhD

open access: yes, 2007
dissertationn the fruit fly Drosophila melanogaster, a pulse of the steroid hormone ecdysone triggers metamorphosis. Ecdysone activates a genetic regulatory hierarchy that can be visualized as a reproducible pattern of puffs in the polytene chromosomes ...
Karim, Felix Darius
core   +1 more source

Functional Analysis of Nuclear Factor Y in the Wing-Dimorphic Brown Planthopper, Nilaparvata lugens (Hemiptera: Delphacidae)

open access: yesFrontiers in Genetics, 2020
Nuclear factor Y (NF-Y) is a heterotrimeric transcription factor with the ability to bind to a CCAAT box in nearly all eukaryotes. However, the function of NF-Y in the life-history traits of insects is unclear.
Hao-Hao Chen   +6 more
doaj   +1 more source

RNA interference in crop protection: opportunities and challenges during the transition to commercialization

open access: yesPest Management Science, Volume 82, Issue 7, Page 5971-5986, July 2026.
RNA interference (RNAi) technologies, host‐induced gene silencing (HIGS) and spray‐induced gene silencing (SIGS), potentially offer sustainable crop protection. However, efficacy, costs, regulatory clarity, and socio‐environmental impacts require further evaluation for broader use.
Elisabetta Sergi   +12 more
wiley   +1 more source

Economical Analysis of a Pressurized Fluid-Based Process Applied for Phytochemicals Recovery in a Sustainable Biorefinery Concept for Brazilian Ginseng Roots

open access: yesChemical Engineering Transactions, 2016
A growing number of technologies are being developed in order to produce different high added value products, such as phytochemicals, ethanol and other chemicals from biomass, representing an important trend that needs to be evaluated.
J. Albarelli   +5 more
doaj   +1 more source

Origin of the mechanism of phenotypic plasticity in satyrid butterfly eyespots

open access: yeseLife, 2020
Plasticity is often regarded as a derived adaptation to help organisms survive in variable but predictable environments, however, we currently lack a rigorous, mechanistic examination of how plasticity evolves in a large comparative framework.
Shivam Bhardwaj   +5 more
doaj   +1 more source

The regulation of ecdysone synthesis by insulin and PTTH.

open access: yes, 2013
Brain lobes and the ring gland are indicated. Ecdysone synthesis is triggered when insulin released from the IPCs and PTTH released from the PG-LPs activate the PI3K and Ras pathways, respectively, in the PG. These two pathways, acting together, activate
Michael Stern (150242)   +1 more
core   +1 more source

Ecdysone-regulated chromosome puffing in the salivary glands of the Mediterranean fruit fly, Ceratitis capitata

open access: yes, 2001
The effect of ecdysone on the puffing activity of the polytene chromosomes of Ceratitis capitata has been studied in organ cultures of late-larval salivary glands.
Anastassios C Mintzas   +2 more
core   +1 more source

Effects of Tissue Damage on Ecdysone Biosynthesis and Signaling.

open access: yes, 2012
qRT-PCR analysis of transcript levels of (A) ptth, (B) genes required for ecdysone synthesis, (C) shd, (D) ecdysone inducible genes, (E) ecdysone receptor components and (F) ecdysone oxidase.
Jennifer F. Hackney (124041)   +2 more
core   +1 more source

Morphogenesis in Drosophila melanogaster : an in vitro analysis [PDF]

open access: yes, 2007
The aim of this thesis was to investigate morphogenesis in the fruit fly Drosophila melanogaster using three in vitro tissue culture systems. Primary embryonic cultures derived from Drosophila melanogaster were used to study the effect of the moulting
Scarborough, Julie
core   +2 more sources

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