Pollen proteomics: from stress physiology to developmental priming.
Pollen development and stress. In angiosperms, pollen or pollen grain (male gametophyte) is a highly reduced two- or three-cell structure which plays a decisive role in plant reproduction. Male gametophyte development takes place in anther locules where diploid sporophytic cells undergo meiotic division followed by two consecutive mitotic processes. A desiccated and metabolically quiescent form of mature pollen is released from the anther which lands on the stigma. Pollen tube growth takes place followed by double fertilization. Apart from its importance in sexual reproduction, pollen is also an interesting model system which integrates fundamental cellular processes like cell division, differentiation, fate determination, polar establishment, cell to cell recognition and communication. Recently, pollen functionality has been studied by multidisciplinary approaches which also include OMICS analyses like transcriptomics, proteomics and metabolomics. Here, we review recent advances in proteomics of pollen development and propose the process of developmental priming playing a key role to guard highly sensitive developmental processes.
Department of Ecogenomics and Systems Biology, Faculty of Sciences, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria.
Palak
P
Chaturvedi
Department of Ecogenomics and Systems Biology, Faculty of Sciences, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria.|School of Biotechnology and Bioinformatics, D.Y. Patil University, Sector No-15, CBD, Belapur, Navi Mumbai, India.
Arindam
A
Ghatak
Department of Ecogenomics and Systems Biology, Faculty of Sciences, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria. wolfram.weckwerth@univie.ac.at.|Vienna Metabolomics Center (VIME), University of Vienna, Vienna, Austria. wolfram.weckwerth@univie.ac.at.
Wolfram
W
Weckwerth
D018869:Heat-Shock Response; D006358:Hot Temperature; D011058:Pollen / Q000254:growth & development* / Q000378:metabolism*; D040901:Proteomics; D013312:Stress, Physiological
Defense priming; Developmental priming; Heat stress; Pollen; Pollen development; Proteomics