Results 101 to 110 of about 12,666 (230)

Vitellogenin RNAi Halts Ovarian Growth and Diverts Reproductive Proteins and Lipids in Young Grasshoppers

open access: yes, 2014
Reduced reproduction extends lifespan of females in many animals. To test the effects of reproduction on storage of macronutrients, we block reproductive output in the lubber grasshopper by injecting RNAi against the precursor to egg-yolk protein ...
Veleta, Katherine A.   +9 more
core   +1 more source

NGHIÊN CỨU MỘT SỐ CHỈ TIÊU HUYẾT HỌC VÀ SINH HÓA CỦA CÁ ĐỐI ĐẤT (LIZA SUBVIRIDIS) Ở GIAI ĐOẠN SINH SẢN

open access: yesTạp chí Khoa học Đại học Cần Thơ, 2012
Nghiên cứu một số chỉ tiêu huyết học và sinh hóa của cá đối đất (Liza subviridis) ở giai đoạn thành thục sinh dục được thực hiện tại Khoa Thủy sản trường Đại học Cần Thơ nhằm xác định mối tương quan giữa các giai đoạn phát triển của tuyến sinh dục với ...
Lê Quốc Việt   +4 more
doaj  

Reproductive biology, artificial reproduction, and breeding strategies of the red swamp crayfish (Procambarus clarkii): A review

open access: yesJournal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract The red swamp crayfish (Procambarus clarkii) is widely cultured and consumed due to its palatable meat and high nutritional value. It also becomes the most valuable crustacean species because of its amazing yield and economic value in China. However, P.
KeLei Zhang   +7 more
wiley   +1 more source

Evaluation of physiological and molecular tools to assess ovarian stages in the black tiger prawn (Penaeus monodon)

open access: yesJournal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract Advancing knowledge of the molecular mechanisms governing vitellogenesis and spawning in the black tiger prawn, Penaeus monodon, requires an efficient method for identifying ovarian stages. Several physiological and molecular tools have been employed to define these stages in laboratory studies.
Gourab Chowdhury   +5 more
wiley   +1 more source

Seasonal shifts in mitochondrial and reactive oxygen species metabolism are linked to ultrastructural remodelling in honey bees (Apis mellifera)

open access: yesThe Journal of Physiology, Volume 604, Issue 12, Page 4745-4770, 15 June 2026.
Abstract figure legend Seasonal changes profoundly reshape honey bee mitochondrial metabolism. In winter, bees shift from complex I (CI)‐ to mitochondrial glycerol‐3‐phosphate dehydrogenase (mG3PDH)‐ and complex II (CII)‐linked respiration. Despite lower CI‐linked respiration ATP production is maintained, suggesting increased energetic efficiency in ...
Adèle Léger   +5 more
wiley   +1 more source

Ekspresi Vitellogenin Ikan Nilem (Osteochilus hasselti) pada Bagian Organ-Organ Tertentu [PDF]

open access: yes, 2018
Vitellogenin merupakan protein yang berperan dalam proses vitellogenesis pada tahapan reproduksi. Vitellogenin merupakan glikoprotein fosfolipid yang berperan dalam produksi protein kuning telur yang penting untuk perkembangan embrio.
AL AF GHANI, Jamaludin
core  

The effect of ovary implants on juvenile hormone production by corpora allata of male Diploptera punctata

open access: yesJournal of Insect Science, 2003
In the cockroach Diploptera punctata, vitellogenic basal oocytes stimulate juvenile hormone production by the corpora allata. Experiments with males were designed to determine whether oocytes must grow vitellogenically in order to stimulate juvenile ...
J.K. Hass   +3 more
doaj  

Comparative analysis of the vitellogenin genes of the Culicidae

open access: yes, 2000
A comparative sequence analysis of mosquito vitellogenin genes was done to gain a better understanding of the evolution of vitellogenin genes in mosquitoes. Genomic clones of vitellogenin genes were isolated from Aedes aegypti , Ae.
Isoe, Jun
core  

Deconstructing honeybee vitellogenin: novel 40 kDa fragment assigned to its N terminus

open access: yes, 2011
SUMMARY Vitellogenin, an egg-yolk protein precursor common to oviparous animals, is found abundantly in honeybee workers – a caste of helpers that do not usually lay eggs.
Gro V. Amdam   +4 more
core   +1 more source

Decoding Vitellogenin Subtype Responses: A Molecular Approach to Biomarkers of Endocrine Disruption in Scatophagus argus

open access: yesFishes
Vitellogenins (Vtgs) are key yolk precursor proteins in fish, serving as critical indicators of gonadal maturation in females and reliable biomarkers for detecting xeno-oestrogenic pollution, particularly through their expression in juveniles or males ...
Meiqin Wu   +4 more
doaj   +1 more source

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