2 documents found, page 1 of 1
Intercellular communication inArabidopsis thalianapollen discovered viaAHG3tran...
Jiang, Hua; Yi, Jun; Boavida, Leonor C.; Chen, Yuan; Becker, Jörg D.; Köhler, Claudia; McCormick, SheilaAn Arabidopsis pollen grain (male gametophyte) consists of three cells: the vegetative cell, which forms the pollen tube, and two sperm cells enclosed within the vegetative cell. It is still unclear if there is intercellular communication between the vegetative cell and the sperm cells. Here we show that ABA-hypersensitive germination3 (AHG3), encoding a protein phosphatase, is specifically transcribed in the v...
Comparative transcriptomics of Arabidopsis sperm cells
Borges, Filipe Filipe; Gomes, Gabriela; Gardner, Rui; Moreno, Nuno; McCormick, Sheila; Feijo, Jose A. Jose A.; Becker, Joeg D Joeg Dn flowering plants, the two sperm cells are embedded within the cytoplasm of the growing pollen tube and as such are passively transported to the embryo sac, wherein double fertilization occurs upon their release. Understanding the mechanisms and conditions by which male gametes mature and take part in fertilization are crucial goals in the study of plant reproduction. Studies of gene expression in male gametes...