Results 51 to 60 of about 1,088,595 (241)

Research Progress on Calcium Ion in Gametophytic Self-Incompatibility

Journal of Horticultural Research, 2022
Calcium ions are involved in plant self-incompatibility response as important signaling substances in cells. In the sporophytic self-incompatibility response, Ca2+ enters the stigma papilla cells and plays a key role in inhibiting incompatible pollen ...
Guo Yanling, Qu Haiyong
doaj   +1 more source

Decreased sorbitol synthesis leads to abnormal stamen development and reduced pollen tube growth via an MYB transcription factor, MdMYB39L, in apple (Malus domestica).

New Phytologist, 2018
Sugars produced by photosynthesis not only fuel plant growth and development, but may also act as signals to regulate plant growth and development. This work focuses on the role of sorbitol, a sugar alcohol, in flower development and pollen tube growth ...
Dong Meng, Mingyan He, Yang Bai, Hongxia Xu, A. Dandekar, Z. Fei, L. Cheng   +6 more
semanticscholar   +1 more source

Knockin’ on pollen’s door: live cell imaging of early polarization events in germinating Arabidopsis pollen

Frontiers in Plant Science, 2015
Pollen tubes are an excellent system for studying the cellular dynamics and complex signaling pathways that coordinate polarized tip growth. Although several signaling mechanisms acting in the tip-growing pollen tube have been described, our knowledge on
Frank eVogler, Sebastian S.A. Konrad, Stefanie eSprunck   +2 more
doaj   +1 more source

Expression-based and co-localization detection of arabinogalactan protein 6 and arabinogalactan protein 11 interactors in Arabidopsis pollen and pollen tubes [PDF]

, 2013
Arabinogalactan proteins (AGPs) are cell wall proteoglycans that have been shown to be important for pollen development. An Arabidopsis double null mutant for two pollen-specific AGPs (agp6 agp11) showed reduced pollen tube growth and compromised ...
Amorim, Maria Isabel, Becker, Jörg D, Coimbra, Sílvia, Costa, Mário, Masiero, Simona, Nobre, Margarida Sofia, Pereira, Luís Gustavo   +6 more
core   +1 more source

RALF4/19 peptides interact with LRX proteins to control pollen tube growth in Arabidopsis

Science, 2017
Timing a switch in tissue integrity In plants, sperm cells travel through the pollen tube as it grows toward the ovule. Successful fertilization depends on the pollen tube rupturing to release the sperm cells (see the Perspective by Stegmann and Zipfel).
M. Mecchia, G. Santos-Fernandez, Nadine N. Duss, Sofía C. Somoza, Aurélien Boisson-Dernier, V. Gagliardini, Andrea Martínez-Bernardini, Tohnyui Ndinyanka Fabrice, C. Ringli, J. Muschietti, U. Grossniklaus   +10 more
semanticscholar   +1 more source

CrRLK1L receptor-like kinases HERK1 and ANJEA are female determinants of pollen tube reception

bioRxiv, 2018
Communication between the male and female gametophytes is vital for fertilisation to occur in angiosperms. A number of receptor-like kinases have been implicated in male-female interactions.
Sergio Galindo-Trigo, Noel Blanco-Touriñán, Thomas A. DeFalco, C. Zipfel, J. Gray, Lisa M. Smith   +5 more
semanticscholar   +1 more source

Persistent directional growth capability in Arabidopsis thaliana pollen tubes after nuclear elimination from the apex

Nature Communications, 2021
Arabidopsis pollen contains a vegetative nucleus and two sperm cells that move to the apical region during pollen tube growth. Here, Motomura et al. make use of transgenic pollen with immobilized nuclei and show that, contrary to previous assumptions ...
Kazuki Motomura, Hidenori Takeuchi, Michitaka Notaguchi, Haruna Tsuchi, Atsushi Takeda, Tetsu Kinoshita, Tetsuya Higashiyama, Daisuke Maruyama   +7 more
doaj   +1 more source

Genome-Wide Analysis of Cyclic Nucleotide-Gated Channel Genes Related to Pollen Development in Rice

Plants, 2022
In the angiosperm, pollen germinates and rapidly expands the pollen tube toward the ovule. This process is important for plant double fertilization and seed setting.
Su-Kyoung Lee, Soo-Min Lee, Myung-Hee Kim, Soon-Ki Park, Ki-Hong Jung   +4 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
Bino, R.J.,, Dons, J.J.M.,, Franken, J.,, Hille, J.,, Witsenboer, H.M.A.,   +4 more
core   +2 more sources

Glucose Uptake via STP Transporters Inhibits in Vitro Pollen Tube Growth in a HEXOKINASE1-Dependent Manner in Arabidopsis thaliana

The Plant Cell, 2018
Glucose is released by SWEET proteins into the apoplast of the pistil and taken up into pollen tubes by STP transporters to regulate pollen tube growth through HXK1 signaling.
Theresa Rottmann, Carolin Fritz, N. Sauer, R. Stadler   +3 more
semanticscholar   +1 more source