Results 71 to 80 of about 1,092,047 (407)
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 +6 more
semanticscholar +1 more source
F1000Research, 2019 Plant seeds are essential for human beings, constituting 70% of carbohydrate resources worldwide; examples include rice, wheat, and corn. In angiosperms, fertilization of the egg by a sperm cell is required for seed formation; therefore, fertilization ...
Xiaoyan Liu +2 more
doaj +1 more source
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
Frustration-induced inherent instability and growth oscillations in pollen tubes [PDF]
, 2012 In a seed plant a pollen tube is a vessel that transports male gamete cells to an ovule to achieve fertilization. It consists of one elongated cell, which exhibits growth oscillations, until it bursts completing its function. Up till now, the mechanism behind the periodic character of the growth has not been fully understood.
arxiv +1 more source
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 +2 more
doaj +1 more source
Acta Societatis Botanicorum Poloniae, 2014 Monoclonal antibodies, which recognize the specific epitopes for pectins and arabinogalactan proteins, in connection with confocal laser scanning microscopy demonstrated the presence of a ring-like structure in the cell wall of pollen tubes of flowering plants.
Zhang, H. Q., Linskens, H. F.
openaire +6 more sources
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 +10 more
semanticscholar +1 more source
Wavelet Based Fractal Analysis of Airborne Pollen [PDF]
, 1998 The most abundant biological particles in the atmosphere are pollen grains and spores. Self protection of pollen allergy is possible through the information of future pollen contents in the air. In spite of the importance of airborne pol len concentration forecasting, it has not been possible to predict the pollen concentrations with great accuracy ...
arxiv +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 +5 more
semanticscholar +1 more source
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 +3 more
semanticscholar +1 more source