Results 31 to 40 of about 21,065 (290)

Regulation of pollen tube growth [PDF]

Acta Botanica Neerlandica, 1995
Most textbooks describe pollen and pollen tubes as the vectors carrying the male sperm cells in seed plants. The pollen tubes grow through the style to the ovule, where the sperm cells are delivered to the egg cells in the embryo sacs. Pollen tubes always grow in an alien environment: in evolutionary terms they derive from the haustorium through which ...
JAN DERKSEN, TWAN RUTTEN, TON VAN AMSTEL, ANNA DE WIN, FIONA DORIS, MARTIN STEER   +5 more
openaire   +3 more sources

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

A chemical screen identifies two novel small compounds that alter Arabidopsis thaliana pollen tube growth

BMC Plant Biology, 2019
Background During sexual reproduction, pollen grains land on the stigma, rehydrate and produce pollen tubes that grow through the female transmitting-tract tissue allowing the delivery of the two sperm cells to the ovule and the production of healthy ...
Ferdousse Laggoun, Flavien Dardelle, Jérémy Dehors, Denis Falconet, Azeddine Driouich, Christophe Rochais, Patrick Dallemagne, Arnaud Lehner, Jean-Claude Mollet   +8 more
doaj   +1 more source

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

Effects of Alternaria alternata f.sp. lycopersici toxins on pollen [PDF]

, 1988
Effects of the phytotoxic compounds (AAL-toxins) isolated from cell-free culture filtrates of Alternaria alternata f.sp. lycopersici on in vitro pollen development were studied. AAL-toxins inhibited both germination and tube growth of pollen from several
Franken, J., Franken, J.,, Witsenboer, H.M.A.,, Witsenboer, H.M.A., Bino, R.J.,, Hille, J., Dons, J.J.M.,, Hille, J.,, Bino, R.J., Dons, J.J.M.   +9 more
core   +1 more source

Effects of temperature on pollen viability and in vivo pollen tube growth in Citrus sinensis

Journal of Applied Botany and Food Quality, 2022
Temperature is the major factor in global warming and strongly influences the success of plant sexual reproduction. Therefore, there isan urgent need to assess the vulnerability of species for breeding and planning effective actions.
Senay Karabiyik
doaj   +1 more source

Signaling and the Modulation of Pollen Tube Growth [PDF]

The Plant Cell, 1999
Pollination in flowering plants begins when pollen lands on a stigma. The process continues as the pollen germinates and grows through intercellular spaces in the pistil, and it culminates when the pollen reaches the ovary and fertilization occurs.
openaire   +2 more sources

The effect of temperature on pollen germination and pollen tube growth of sour cherry cultivars [PDF]

Journal of Agricultural Sciences (Belgrade), 2014
The study was carried out to determine the effect of three different temperatures (5, 15 and 25°C) on in vitro pollen germination and pollen tube growth of five sour cherry cultivars: ‘Heimanns Konservenweichsel’, ‘Kelleriis 14’, ‘Oblačinska ...
Milatović Dragan P., Nikolić Dragan T.
doaj   +1 more source

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
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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