The peri-germ cell membrane: poorly characterized but key interface for plant reproduction - Archive ouverte HAL
Article Dans Une Revue Nature Plants Année : 2024

The peri-germ cell membrane: poorly characterized but key interface for plant reproduction

Naoya Sugi
Andrea Calhau
Reproduction et développement des plantes
Nathanaël Jacquier
Reproduction et développement des plantes
Marina Millan-Blanquez
Reproduction et développement des plantes
Jörg Becker
Kevin Begcy
Frédéric Berger
Cécile Bousquet-Antonelli
Daniel Bouyer
Centre National de la Recherche Scientifique
École normale supérieure de Lyon
Reproduction et développement des plantes
Giampiero Cai
Alice Cheung
Sílvia Coimbra
Philipp Denninger
Thomas Dresselhaus
José Feijó
John Fowler
Danny Geelen
Ueli Grossniklaus
Tetsuya Higashiyama
David Honys
Tomoko Igawa
Gwyneth Ingram
Reproduction et développement des plantes
Yvon Jaillais
Reproduction et développement des plantes
CV
Mark Johnson
Mariko Kato
Miki Kawachi
  • Fonction : Auteur
Tomokazu Kawashima
Yu-Jin Kim
Hong-Ju Li
Sébastien Mongrand
Kazuki Motomura
Shiori Nagahara
  • Fonction : Auteur
Kohdai Nakajima
Brad Nelms
Li-Jia Qu
Arp Schnittger
Stefan Scholten
Stefanie Sprunck
Meng-Xiang Sun
David Twell
Dolf Weijers
Wei-Cai Yang
Daisuke Maruyama
Thomas Widiez
Reproduction et développement des plantes
CV

Résumé

Pollen is the male gametophyte of flowering plants, the typically haploid generation of the plant life cycle that produces the male gametes. Upon germination, pollen grains extend a pollen tube to transport the male gametes (sperm cells) towards the ovules for double fertilization of the female gametes harboured by the female gametophyte or the embryo sac. Pollen grains exhibit a unique ‘cell(s) within a cell’ organization. After meiosis, each single-celled microspore divides highly asymmetrically to give rise to a vegetative cell and a generative cell. The generative cell is subsequently engulfed by the vegetative cell, separates from the external pollen wall and thus becomes enclosed within the large vegetative cell while migrating to the centre of the pollen grain. Later in development, the generative cell divides into a pair of sperm cells. As a result of this developmental process, a unique membrane surrounds the male germ cells (the generative cell and subsequently the two sperm cells). Here we propose to standardize and unify the name of this membrane as the peri-germ cell membrane.

Mots clés

Pollen

Domaines

Sciences du Vivant [q-bio]

Daniel Bouyer  : Connectez-vous pour contacter le contributeur

https://hal.science/hal-04764035

Soumis le : dimanche 3 novembre 2024-13:02:19

Dernière modification le : mardi 12 novembre 2024-15:20:06

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Dates et versions

hal-04764035 , version 1 (03-11-2024)

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Citer

Naoya Sugi, Andrea Calhau, Nathanaël Jacquier, Marina Millan-Blanquez, Jörg Becker, et al.. The peri-germ cell membrane: poorly characterized but key interface for plant reproduction. Nature Plants, 2024, ⟨10.1038/s41477-024-01818-5⟩. ⟨hal-04764035⟩

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ENS-LYON CNRS UNIV-LYON1 UDL INRAE ANR BIOLOGIE_ET_AMELIORATION_DES_PLANTES
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