Results 51 to 60 of about 7,825 (215)
Development of the Ovule in a Species of Cissus [PDF]
Nature, 1965 IN an investigation of the floral morphology and embryology of the Vitaceae the following features were observed in the development of the ovule of Cissus trilobata Lamk. collected from Changanacherry, Kerala State, India.
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The Effect of Adrenalectomy on Ovulation and Follicular Development in the Rat [PDF]
Biology of Reproduction, 1976 The effects of bilateral adrenalectomy and/or unilateral ovariectomy on ovulation and follicular development were studied in female rats. Th e animals were allowed to either cycle for 1 estrous sycle before being killed or to cycle for 30 days before sacrifice.
R D, Peppler, J J, Jacobs
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Equine Veterinary Journal, EarlyView.Abstract Background Persistent breeding‐induced endometritis (PBIE) is a common reason for mares failing to establish pregnancy. Objective To examine the hypothesis that advancing mare age and embryo donor status predispose to PBIE and compromise fertility.
Tom Stout +3 more
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International Journal of Gynecology &Obstetrics, Volume 169, Issue 1, Page 112-120, April 2025.Abstract Objective In the present study, a bidirectional two‐sample Mendelian randomization approach was utilized to explore potential causal relationships between mitochondrial DNA copy number (mtDNA‐CN) and ovary‐related reproductive disorders (ORRDs), including ovarian dysfunction, ovarian cyst, polycystic ovary syndrome (PCOS), premature ovarian ...
Ke Peng +4 more
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Optimization of In Vitro Ovule Culture System in Upland Cotton
PlantsIn vitro ovule culture serves as an experimental platform for exploring the growth and development processes of cotton fibers. However, over the decades, research on the in vitro ovule culture of upland cotton has remained underdeveloped.
Li Zhang +8 more
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Study of some abnormalities of ovule development to seed in Pistacia vera L. [PDF]
Zīst/shināsī-i Giyāhī-i Īrān, 2014 Seed production in some crops like pistachio is limited by some abnormalities in ovule development stages. In this study, the ovule developmental stages as well as abnormalities of these stages were investigated.
Najmeh Hosseini +2 more
doaj
Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.ABSTRACT Climate change and rising ambient temperatures increasingly challenge sheep production systems in arid and semi‐arid regions, particularly during the summer breeding season. This study evaluated the effects of heat stress and direct solar exposure on physiological responses, metabolic profile, and reproductive performance of Barbarine ewes, a ...
Samia Khnissi +4 more
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BMC Plant Biology, 2023 Background In seed plants, the ovule is the precursor to the seed. The process of ovule development and differentiation is regulated by multiple factors, including starch metabolism and endogenous hormones.
Qi Qiu +5 more
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Plant development: Attractive ovules [PDF]
Current Biology, 1997 AbstractThe guidance of a pollen tube through the female flower to reach an ovule is genetically controlled and occurs only if the ovule's embryo sac has developed, suggesting that the embryo sac is the source of a specific pollen tube attractant.
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Control of follicular development and ovulation rate in pigs [PDF]
Bioscientifica Proceedings, 2020 There is considerable evidence that nutritional and metabolic control of follicular growth is mediated by metabolic hormones and growth factors, particularly with processes mediated by insulin-like growth factor I (IGF-I) and its binding proteins (IGFBPs).
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