Results 131 to 140 of about 2,944,740 (334)

Oocyte–cumulus cell interaction: a key factor in early embryo development

Biological Reviews, EarlyView.
ABSTRACT The evaluation of oocyte competence is a fundamental step in achieving successful outcomes following assisted reproduction techniques (ART). At present, however, conventional oocyte maturation assessment is carried out by morphological observation, which is a subjective method that does not consider molecular features.
Marc Torres‐Garrido, Marc Yeste, Yentel Mateo‐Otero   +2 more
wiley   +1 more source

Interaction Between Actin and Microtubules During Plant Development

Cytoskeleton, EarlyView.
ABSTRACT The dynamic interaction between actin filaments (AFs) and microtubules (MTs) plays a crucial role in regulating key developmental and physiological processes in plant cells, particularly in the formation of specialized cell types with distinct shapes and functions, such as pollen tubes, trichomes, and leaf epidermal cells.
Zining Wu, Lidong Gao, M. Arif Ashraf, Qiong Nan   +3 more
wiley   +1 more source

Morfologi Dan Biometri Spermatozoa Anoa (Bubalus SP.) Yang Diwarnai Dengan Pewarna William's Dan Eosin-Nigrosin [PDF]

, 2010
Anoa is Indonesia endemic fauna that included into Appendix I by CITES. Anoa breeding efforts have not succeed, due to their agressivity, soliter, wildness and monogamous.
Aditya, A. (Aditya), Agil, M. (M), Hastuti, Y. T. (Y), Manansang, J. (J), Purwantara, B. (B), Sayuthi, D. (D), Sudarwati, R. (R), Wresdiyati, T. (T), Yudi, Y. (Yudi), Yusuf, T. L. (T)   +9 more
core  

Nuclear Entanglement: New Insights Into the Role of Cytoskeleton and Nucleoskeleton in Plant Nuclear Function

Cytoskeleton, EarlyView.
ABSTRACT Of the three types of cytoskeleton known in animals—actin, microtubules, and intermediate filaments—only actin and microtubules exist in plants. Both play important roles in cellular shaping, organelle movement, organization of the endomembrane system, and cell signaling.
Norman R. Groves, Katelyn Amstutz, Lily A. Schumacher, Iris Meier   +3 more
wiley   +1 more source

Oral Administration of Cogongrass (Imperata cylindrica L) Root Ethanol- Extract causes Mouse Epididymal Sperm Abnormality (PEMBERIAN EKSTRAK ETANOL AKAR ALANG-ALANG (IMPERATA CYLINDRICA L) SECARA ORAL MENYEBABKAN ABNORMALITAS SPERMA EPIDIDYMIS MENCIT)

Jurnal Veteriner, 2018
Sperm morphology is an important parameter to be observed in the male fertility. Some of the bioactive compounds of cogongrass root such as alkaloid and terpenoid, affect male fertility by interference the spermatogenesis.
Rini Widyastuti, Jaqueline Sudiman, Tyagita Tyagita, Mas Rizky Adipurna Anggun Syamsunarno, Sony Heru Sumarsono   +4 more
doaj  

Beyond body mass index: the role of fat distribution in male sperm quality

Frontiers in Endocrinology
ObjectiveTo explore the dual role of obesity and fat distribution on sperm dynamics and morphological parameters and to further assess the impact on male fertility.MethodsA population of 823 male semen examinations from the Male Reproductive Health ...
Dongsheng Ma, Dongsheng Ma, Mengru Zhang, Mengru Zhang, Xiaoguang Zhang, Xiaoguang Zhang, Lizhen Xu   +6 more
doaj   +1 more source

Decline in human sperm counts during the past 50 years? [PDF]

, 2005
There is widespread concern that environmental pollutants acting as xenoestrogens may affect human fertility adversely. Whether this has already made an impact on human fertility worldwide remains debatable at the present stage.
Jayachandra, Srinivasa, Pinto, Maxim, Souza, Urban JAD   +2 more
core  

In Vitro Live Cell Imaging Reveals Nuclear Dynamics and Role of the Cytoskeleton During Asymmetric Division of Pollen Mitosis I in Nicotiana Benthamiana

Cytoskeleton, EarlyView.
ABSTRACT Pollen is a male gametophyte of angiosperms. Following meiosis, the microspore undergoes an asymmetric division called pollen mitosis I (PMI), which produces two cells of different sizes: a large vegetative cell and a small generative cell. Polarized nuclear migration and positioning during PMI are important for successful pollen development ...
Yoko Mizuta, Masako Igarashi, Tomomi Shinagawa, Ikuma Kaneshiro, Haoto Anan, Daisuke Kurihara   +5 more
wiley   +1 more source

Differential sensitivity of midline development to mitosis during and after primitive streak extension

Developmental Dynamics, EarlyView.
Abstract Background Midline establishment is a fundamental process during early embryogenesis for Bilaterians. Midline morphogenesis in non‐amniotes can occur without mitosis, through Planar Cell Polarity (PCP) signaling. By contrast, amniotes utilize both cellular processes for developing the early midline landmark, the primitive streak (PS).
Zhiling Zhao, Rieko Asai, Takashi Mikawa
wiley   +1 more source

Possible role of microtubules in vesicular transport of matrix protein during sea urchin larval biomineralization

Developmental Dynamics, EarlyView.
Abstract Background Biomineralization is a vital biological process through which organisms produce mineralized structures such as shells, skeletons, and teeth. Microtubules are essential for biomineralization in various eukaryotic species; however, their specific roles in this process remain unclear.
Areen Qassem, Tsvia Gildor, Smadar Ben‐Tabou de‐Leon   +2 more
wiley   +1 more source