Results 11 to 20 of about 421 (210)

Regulatory Mechanisms of Cell Polyploidy in Insects

open access: yesFrontiers in Cell and Developmental Biology, 2020
Polyploidy cells undergo the endocycle to generate DNA amplification without cell division and have important biological functions in growth, development, reproduction, immune response, nutrient support, and conferring resistance to DNA damage in animals.
Dani Ren   +9 more
doaj   +1 more source

Roles of hormones, calcium and PmWRKY31 in the defense of Pinus massoniana Lamb. against Dendrolimus punctatus Walker

open access: yesForestry Research, 2021
Dendrolimus punctatus Walker is a major pest affecting Pinus massoniana Lamb. forests and can cause serious economic and ecological losses. WRKY transcription factors play important roles in coping with various environmental stresses and plant responses ...
Hu Chen   +6 more
doaj   +1 more source

Characterization of the swede midge, Contarinia nasturtii, first instar larval salivary gland transcriptome

open access: yesCurrent Research in Insect Science, 2023
Proteins in saliva of gall-forming insect larvae govern insect-host plant interactions. Contarinia nasturtii, the swede midge, is a pest of brassicaceous vegetables (cabbage, cauliflower, broccoli) and canola.
Boyd A. Mori   +3 more
doaj   +1 more source

The neuroendocrine stress-response in insects: the history of the development of the concept

open access: yesВавиловский журнал генетики и селекции, 2017
The neuroendocrine stress-response is an effective defense mechanism against adverse influences of various nature. This reaction is universal and appears in response to stimuli that are unusual not just for living and habitat of the species, but also for
M. A. Eremina, N. E. Gruntenko
doaj   +1 more source

The insect somatostatin pathway gates vitellogenesis progression during reproductive maturation and the post-mating response

open access: yesNature Communications, 2022
In mammals, somatostatin plays a role in preventing the release of sex hormones before puberty begins. A Drosophila study uncovered the process by which insect somatostatin controls ovarian development in response to developmental and mating signals.
Chen Zhang   +4 more
doaj   +1 more source

Mode of Action of Farnesol, the “Noble Unknown” in Particular in Ca2+ Homeostasis, and Its Juvenile Hormone-Esters in Evolutionary Retrospect

open access: yesFrontiers in Neuroscience, 2019
Farnesol, the sesquiterpenoid precursor of insect juvenile hormones (JH) that itself has JH activity, existed already long before animals and their hormones came into being.
Arnold De Loof, Liliane Schoofs
doaj   +1 more source

Special Types of Pesticides

open access: yesEDIS, 2005
This guide discusses some unique materials that are used as pesticides. Some types of pesticides do not belong to any specific chemical groups. Some of these are synthetically manufactured; some occur naturally in the environment, and others are ...
Frederick M. Fishel
doaj   +5 more sources

Intraluminal Farnesol and Farnesal in the Mealworm's Alimentary Canal: An Unusual Storage Site Uncovering Hidden Eukaryote Ca2+-Homeostasis-Dependent “Golgicrine” Activities

open access: yesFrontiers in Endocrinology, 2019
Farnesol, the sesquiterpenoid precursor of the six presently known insect juvenile hormones (JHs) was for the first time chemically identified in 1961, not in JH synthesizing glands or whole body extracts, but in excrements of the mealworm Tenebrio ...
Arnold De Loof, Liliane Schoofs
doaj   +1 more source

Full-length transcriptome and targeted metabolome analyses provide insights into defense mechanisms of Malus sieversii against Agrilus mali [PDF]

open access: yesPeerJ, 2020
Malus sieversii is the wild progenitor for many cultivars of domesticated apple and an important germplasm resource for breeding. However, this valuable species faces a significant threat in the areas north of the Tianshan Mountains in China, by the ...
Chuang Mei   +10 more
doaj   +2 more sources

Inducible Expression of Several Drosophila melanogaster Genes Encoding Juvenile Hormone Binding Proteins by a Plant Diterpene Secondary Metabolite, Methyl Lucidone

open access: yesInsects, 2022
Juvenile hormones prevent molting and metamorphosis in the juvenile stages of insects. There are multiple genes encoding a conserved juvenile hormone binding protein (JHBP) domain in a single insect species.
Sang-Woon Shin   +5 more
doaj   +1 more source

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