Results 41 to 50 of about 6,669 (206)

Ovary Signals for Pollen Tube Guidance in Chalazogamous Mangifera indica L.

Frontiers in Plant Science, 2021
Most flowering plants show porogamy in which the pollen tubes reach the egg apparatus through the micropyle. However, several species show chalazogamy, an unusual pollen tube growth, in which the pollen tubes reach the embryo sac through the chalaza ...
Jorge Lora, Veronica Perez, Veronica Perez, Veronica Perez, Maria Herrero, Jose I. Hormaza   +5 more
doaj   +1 more source

Pollen?Pistil Interactions in Nicotiana tabacum [PDF]

Annals of Botany, 2000
Pollination involves a series of interactions between the surface of the male gametophyte and the extracellular matrix of several distinct sporophytic tissues in the pistil. Pollen germinates on the stigmatic surface and develops a tube that elongates in the transmitting tract of the style to transport the male gametes to the embryo sac inside the ...
openaire   +1 more source

Efficient preparation of Arabidopsis pollen tubes for ultrastructural analysis using chemical and cryo-fixation [PDF]

, 2017
The pollen tube (PT) serves as a model system for investigating plant cell growth and morphogenesis. Ultrastructural studies are indispensable to complement data from physiological and genetic analyses, yet an effective method is lacking for PTs of the ...
A Vitale, Andres Kaech, C Hu, Christof Eichenberger, Christoph Ringli, D Studer, D Studer, DL White, E Kellenberger, E Rojo, EM Lord, F Dardelle, G Roderer, Gery Barmettler, GR Hicks, H Takeuchi, H Vogler, J Coetzee, J Derksen, J. Paul Knox, JC Gilkey, JN Skepper, K Chae, L Hao, L Zonia, M Iwano, M Iwano, M Kroh, MW Hess, MW Steer, N Matsko, N S-i, P Qin, R Malho, R Palanivelu, S Roy, S Roy, S Yamashita, SM Wilson, T Sawidis, Tohnyui Ndinyanka Fabrice, Ueli Grossniklaus, VE Franklin-Tong, Y Chebli, Y Qin, YF Wang   +45 more
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Pollen-pistil interactions regulating successful fertilization in the Brassicaceae [PDF]

Journal of Experimental Botany, 2010
In the Brassicaceae, the acceptance of compatible pollen and the rejection of self-incompatible pollen by the pistil involves complex molecular communication systems between the pollen grain and the female reproductive structures. Preference towards species related-pollen combined with self-recognition systems, function to select the most desirable ...
Laura A, Chapman, Daphne R, Goring
openaire   +2 more sources

Dynamic transcriptomic analysis of the early response of female flowers of Populus alba × P. glandulosa to pollination

Scientific Reports, 2017
Pollination is an important event in plant sexual reproduction, and post-pollination response is an essential process for reproduction. Populus alba × P. glandulosa is used widely in scientific research, especially in cross breeding as parents.
Pian Rao, Zhong Chen, Xiaoyu Yang, Kai Gao, Xiong Yang, Tianyun Zhao, Siyan Li, Bo Wu, Xinmin An   +8 more
doaj   +1 more source

Whole-Organ analysis of calcium behaviour in the developing pistil of olive (Olea europaea L.) as a tool for the determination of key events in sexual plant reproduction

BMC Plant Biology, 2011
Background The pistil is a place where multiple interactions between cells of different types, origin, and function occur. Ca2+ is one of the key signal molecules in plants and animals. Despite the numerous studies on Ca2+ signalling during pollen-pistil
Zienkiewicz Krzysztof, Rejón Juan D, Suárez Cynthia, Castro Antonio J, de Dios Alché Juan, Rodríguez García María   +5 more
doaj   +1 more source

Reactive Oxygen Species as Mediators of Gametophyte Development and Double Fertilization in Flowering Plants

Frontiers in Plant Science, 2020
Reactive oxygen species (ROS) are toxic by-products of aerobic metabolism. In plants, they also function as important signaling molecules that regulate biotic and abiotic stress responses as well as plant growth and development.
Subramanian Sankaranarayanan, Subramanian Sankaranarayanan, Yan Ju, Yan Ju, Sharon A. Kessler, Sharon A. Kessler   +5 more
doaj   +1 more source

Pollen-Pistil Interactions and Their Role in Mate Selection [PDF]

Plant Physiology, 2016
Pollen-pistil interactions contribute to mate selection at the postmating, prezygotic level.
Patricia A. Bedinger, Amanda K. Broz, Alejandro Tovar-Mendez, Bruce McClure   +3 more
openaire   +2 more sources

Interaction Between AtCML9 and AtMLO10 Regulates Pollen Tube Development and Seed Setting

Frontiers in Plant Science, 2020
In higher-plant reproduction, the compatibility of pollen tube germination in the pistil is essential for successful double fertilization. It has been reported that Mildew Locus O (MLO) family gene NTA (MLO7), expressing in synergid cells, can correctly ...
Qian Zhang, Congcong Hou, Yudan Tian, Mitianguo Tang, Changxin Feng, Zhijie Ren, Jiali Song, Xiaohan Wang, Tiange Li, Mengou Li, Wang Tian, Jinlong Qiu, Liangyu Liu, Legong Li   +13 more
doaj   +1 more source

Phosphatidic acid counteracts S-RNase signaling in pollen by stabilizing the actin cytoskeleton [PDF]

, 2018
S-RNase is the female determinant of self-incompatibility (SI) in pear (Pyrus bretschneideri). After translocation to the pollen tube, S-RNase degrades rRNA and induces pollen tube death in an S-haplotype-specific manner. In this study, we found that the
Chen, Jianqing, De Graaf, Barend H. J., Jiao, Huijun, Tang, Chao, Wang, Peng, Wu, Juyou, Zhang, Hao, Zhang, Shaoling   +7 more
core   +1 more source