Results 61 to 70 of about 65,346 (303)

Zinc Exposure Causes Disulfidptosis to Induce Miscarriage by Up‐Regulating GATA1/METTL1/SLC7A11 Axis

Advanced Science, EarlyView.
Zn exposure up‐regulates GATA1, promoting GATA1‐mediated METTL1 and SLC7A11 transcription. It also enhances METTL1‐mediated m7G modification on SLC7A11 mRNA, increasing SLC7A11 mRNA stability. Ultimately, Zn exposure up‐regulates SLC7A11 at both transcriptional and post‐transcriptional levels, causing disulfidptosis. Knockdown of murine Slc7a11, Gata1,
Wenxin Huang, Yi Sun, Yanxin Wang, Haijun Yan, Xiaoping Yue, Weidong Wu, Xueyu Chen, Jinfang Zhang, Yanbing Lin, Qiong Lei, Nan Ji, Shuaishuai Xing, Liqin Zeng, Qingzheng Kang, Depeng Zhao, Geng Guo, Huidong Zhang   +16 more
wiley   +1 more source

Sexual selection and the evolution of sperm quality [PDF]

MHR: Basic science of reproductive medicine, 2014
Sperm experience intense and varied selection that dramatically impacts the evolution of sperm quality. Selection acts to ensure that sperm are fertilization-competent and able to overcome the many challenges experienced on their way towards eggs. However, simply being able to fertilize an egg is not enough to ensure male fertility in most species ...
Fitzpatrick, John L, Lüpold, Stefan
openaire   +3 more sources

Phenotypic plasticity in sperm traits in scorpionflies (Mecoptera: Panorpidae): consequences of larval history and seasonality on sperm length and sperm transfer

, 2009
Vermeulen A, Engels S, Engqvist L, Sauer KP. Phenotypic plasticity in sperm traits in scorpionflies (Mecoptera: Panorpidae): consequences of larval history and seasonality on sperm length and sperm transfer. European Journal of Entomology.
Vermeulen, Andreas, Engqvist, Leif, Klaus Peter SAUER, Sauer, Klaus Peter, Leif ENGQVIST, Engqvist, Leif ; https://orcid.org/, Andreas VERMEULEN, Engels, Sierk, Sierk ENGELS   +8 more
core   +1 more source

Ecological Adaptation Mechanisms Underlying Successful Plant Reproduction

Advanced Science, EarlyView.
During floral induction, various environmental and endogenous signals converge to regulate the florigen protein, which is transported from leaves to the SAM to initiate flowering. Within the SAM, a complex network of receptor kinases and small peptides orchestrates floral development with high spatiotemporal precision.
Hang Zhao, Shenghui Huo, Yue Xing, Shuxin Zhang, Guilin Li, Yihui Liu, Chongyang Jin, Fuguang Li, Xiaoyang Ge   +8 more
wiley   +1 more source

Improving sperm banking efficiency in endangered species through the use of a sperm selection method in brown bear (Ursus arctos) thawed sperm

BMC Veterinary Research, 2017
Background Sperm selection methods such as Single Layer Centrifugation (SLC) have been demonstrated to be a useful tool to improve the quality of sperm samples and therefore to increase the efficiency of other artificial reproductive techniques in ...
L. Anel-Lopez, C. Ortega-Ferrusola, M. Álvarez, S. Borragán, C. Chamorro, F. J. Peña, J. Morrell, L. Anel, P. de Paz   +8 more
doaj   +1 more source

Determinants of sperm transfer in the scorpionfly Panorpa cognata: male variation, female condition and copulation duration

, 2003
Engqvist L, Sauer KP. Determinants of sperm transfer in the scorpionfly Panorpa cognata: male variation, female condition and copulation duration. Journal of Evolutionary Biology.
Sauer, Klaus Peter, Engqvist, Leif ; https://orcid.org/   +1 more
core   +1 more source

Audience effects in the Atlantic molly (Poecilia mexicana)-prudent male mate choice in response to perceived sperm competition risk? [PDF]

, 2009
Background Multidirectional interactions in social (or communication) networks can have a profound effect on mate choice behavior. For example, Poecilia mexicana males show weaker expression of mating preferences when being observed by an audience male ...
Tiedemann, Ralph, Mahlow Kristin, Kristin Mahlow, Plath, Martin, Kronmarck Claudia, Ralph Tiedemann, Plath Martin, Streit Bruno, Carmen Hennige-Schulz, Tiedemann Ralph, Mahlow, Kristin, Madlen Ziege, Kronmarck, Claudia, Claudia Kronmarck, Ziege, Madlen, Streit, Bruno, Bruno Streit, Ziege Madlen, Hennige-Schulz, Carmen, Hennige-Schulz Carmen, Martin Plath   +20 more
core   +1 more source

Redox‐Dependent Chaperoning of GBF1 Condensates Regulates Seed Germination in Arabidopsis

Advanced Science, EarlyView.
In dormant seeds (low ROS), GBF1 forms liquid condensates to repress the germination gene CathB3, and the chaperone GIP1 maintains condensate liquidity and repressive activity. Upon imbibition (high ROS), ROS oxidize GIP1 during germination, impairing its chaperone function.
Yunying Wang, Xiaofeng Fang
wiley   +1 more source

Effect analysis of improving human sperm quality by a novel distance-temperature-combined selection approach [PDF]

Jichu yixue yu linchuang, 2020
Objective To investigate the effect of improving human sperm quality by novel selection approach based on progressive motility and thermotaxis. Methods The capacitated spermatozoa were placed on one end of strip droplets with different length (2, 5, 8
RAO Jin-peng, QIU Feng, CAI Yi-ting, WEI Kai, JIN Min, JIN Fan
doaj  

Genetic variance and genotype reaction norms in response to larval food manipulation for a trait important in scorpionfly sperm competition.

, 2008
Engqvist L. Genetic variance and genotype reaction norms in response to larval food manipulation for a trait important in scorpionfly sperm competition. Functional Ecology. 2008;22(1):070915213639001-???Sperm competition is an important attribute of many
L. Engqvist, Engqvist, Leif ; https://orcid.org/   +1 more
core   +1 more source