Pollen water status, development and functioning (Invited Review)

Pollen water status, development and functioning

Pollen water status, devel­op­ment and functioning

The male gam­et­o­phyte devel­op­mental pro­gram can be divided into five phases, which dif­fer in rela­tion to the envir­on­ment and pol­len hydra­tion state: the microsporo­gen­esis phase; the dehyd­ra­tion phase; the present­a­tion phase; the dis­persal phase; and the pollen–stigma inter­ac­tion phase. Firon et al. review the topic of pol­len water status, indic­at­ing the vari­ous mech­an­isms used by pol­len grains dur­ing these devel­op­mental phases to adjust to changes in water con­tent and to main­tain internal sta­bil­ity. Pollen water status is co-ordinated through struc­tural, physiolo­gical and molecu­lar mech­an­isms, and it is sug­ges­ted that pol­len grains will use these mech­an­isms, which have a devel­op­mental role, to cope with envir­on­mental stress conditions.

Annals of Botany Office.

The Annals of Botany Office is based at the University of Leicester.