Results 31 to 40 of about 28,966 (260)

Possible molecular mechanisms of persistent pollen tube growth without de novo transcription

Frontiers in Plant Science, 2022
The vegetative cell nucleus proceeds ahead of a pair of sperm cells located beneath the pollen tube tip during germination. The tip-localized vegetative nucleus had been considered to play a pivotal role in the control of directional pollen tube growth ...
Kazuki Motomura, Kazuki Motomura, Kazuki Motomura, Naoya Sugi, Atsushi Takeda, Shohei Yamaoka, Daisuke Maruyama   +6 more
doaj   +1 more source

Roles for NO and ROS signalling in pollen germination and pollen-tube elongation in Cupressus arizonica

Biologia Plantarum, 2015
Roles for nitric oxide (NO) and reactive oxygen species (ROS) during pollen-tube growth have been well established in angiosperms, but there remains lack of information regarding their potential signalling roles in pollen tubes in gymnosperms.
S. Pasqualini, M. Cresti, C. Del Casino, C. Faleri, G. Frenguelli, E. Tedeschini, L. Ederli   +6 more
doaj   +1 more source

Reproductive abnormalities in interspecific crosses involving Gossypium hirsutum and Gossypium arboreum [PDF]

Electronic Journal of Plant Breeding, 2010
A successful cross fertilization involving two different species implies that a chain of reproductive process takes placeunhampered after pollination. The coordination and interaction between genes or gene complexes in the pollen parent andmatching gene ...
S.Saravanan, K. Koodalingam and T.S. Raveendran
doaj  

An extracellular transglutaminase is required for apple pollen tube growth

, 2010
An extracellular form of the calcium-dependent protein-crosslinking enzyme TGase (transglutaminase) was demonstrated to be involved in the apical growth of Malus domestica pollen tube.
Coutts, IG, Griffin, Martin, Cresti M, SERAFINI FRACASSINI, DONATELLA, Hargreaves, AJ, Cai, G, Furutani, Yutaka, Bonner, Philip L.R., Hirose, Shigehisa, Griffin M, Griffin, M, Hargreaves, Alan Jeffrey, Cai, Giampiero, Serafini Fracassini, D., Verderio, Elisabetta Am, Furutani, Y., Serafini, Donatella, DI SANDRO, ALESSIA, Bonner PL, Cresti, M, Bonner, PL, Scarpellini, Alessandra, Hirose S, Iorio, RA, Di, Sandro, Scarpellini, A., Verderio, E., Furutani Y, Serafini-Fracassini, D, Bonner, P. L., Shigehisa, H., Del Duca, S., Iorio, R. A., Cresti, Mauro, Cai G, IORIO, ROSA ANNA, Hargreaves, A. J., Di Sandro, A., Scarpellini A, Verderio Edwards E, Scarpellini, A, Furutani, Y, Coutts IG, Coutts, Ian G.C., Faleri, C, Faleri, Claudia, Hargreaves AJ, DEL DUCA, STEFANO, Hirose, S, Coutts, I. G. C., Verderio, E, Griffin, M., Del, Duca, Faleri C   +53 more
core   +1 more source

Chloride fluxes in lily pollen tubes: a critical reevaluation

, 2004
Microelectrodes, made from a Cl?-selective liquid ion exchanger previously used to measure putative Cl- fluxes in Lilium longiflorum pollen tubes, were characterized. The electrodes were poorly selective, possessing only about 10-fold selectivity for Cl?
Mark A. Messerli, Robert C. Lewis, Kenneth R. Robinson, Robinson, Kenneth R., Lewis, Robert C., Messerli, Mark A., Smith, Peter J.S., Peter J. S. Smith   +7 more
core   +1 more source

Pollen tube emergence is mediated by ovary-expressed ALCATRAZ in cucumber [Dataset] [PDF]

, 2023
Overall design: Ovaries of wild type and Csalc mutant at 32 h after pollination were collected for RNA-seq analysis. Three biological replicates were performed. -- Organism: Cucumis sativus.
Ying, Ao, Xu, Junqiang, Li, Min, Zhang, Xiaolan, Han, Lijie, Yan, Shuangshuang, Liu, Liu, Cheng, Zhihua, Song, Weiyuan, Yang, Zhengan, Zhao, Jianyu, Zhong, Yanting, Liu, Bin, Chen, Jiacai, Che, Gen, Lv, Hanli, Wang, Zhongyi, Zhou, Zhaoyang, Liu, Xiaofeng   +18 more
core   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

Malectin Alleviates Endoplasmic Reticulum Stress in Gestational Diabetes Mellitus via Glycoprotein Quality Control Mechanisms

Advanced Science, EarlyView.
Malectin alleviates high glucose‐induced ER stress and damage in placental trophoblasts, a function dependent on its six critical carbohydrate‐binding residues. In a GDM mouse model, administration of TAT‐Malectin ameliorated hyperglycemia and placental ER stress and prevented fetal macrosomia.
Jiahui Zhu, Yumeng Zhang, Ye Wang, Xiaoyu Zhu, Ailin Yuan, Weijing Yin, Huangmin Yu, Xuemin Pang, Yufeng He, Yuchen Wang, Tong Wang, Yong Li, Yunlong Si   +12 more
wiley   +1 more source

Rice UCL8, a plantacyanin gene targeted by miR408, regulates fertility by controlling pollen tube germination and growth

Rice, 2018
Background Pollen tube formation and growth are crucial steps that lead to seed production. Despite the importance of pollen tube growth, the molecular mechanisms implicated in its spatial and temporal control are not fully known. In this study, we found
Fan Zhang, Yu-Chan Zhang, Jin-Ping Zhang, Yang Yu, Yan-Fei Zhou, Yan-Zhao Feng, Yu-Wei Yang, Meng-Qi Lei, Huang He, Jian-Pin Lian, Yue-Qin Chen   +10 more
doaj   +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