Timing of meristem initiation and maintenance determines the morphology of fern gametophytes
Timing of meristem initiation and maintenance determines the morphology of fern gametophytes
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分生组织起始和维持的时间决定了蕨类配子体的形态
DOI:
10.1093/jxb/erab307
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发表时间:
2021
影响因子:
6.9
通讯作者:
Zhou, Yun
中科院分区:
文献类型:
--
作者:
Wu, Xiao;Yan, An;McAdam, Scott A;Banks, Jo Ann;Zhang, Shaoling;Zhou, Yun
The alternation of generations in land plants occurs between the sporophyte phase and the gametophyte phase. The sporophytes of seed plants develop self-maintained, multicellular meristems, and these meristems determine plant architecture. The gametophytes of seed plants lack meristems and are heterotrophic. In contrast, the gametophytes of seed-free vascular plants, including ferns, are autotrophic and free-living, developing meristems to sustain their independent growth and proliferation. Compared with meristems in the sporophytes of seed plants, the cellular mechanisms underlying meristem development in fern gametophytes remain largely unknown. Here, using confocal time-lapse live imaging and computational segmentation and quantification, we determined different patterns of cell divisions associated with the initiation and proliferation of two distinct types of meristems in gametophytes of two closely related Pteridaceae ferns,Pteris vittataandCeratopteris richardii. Our results reveal how the simple timing of a switch between two meristems has considerable consequences for the divergent gametophyte morphologies of the two ferns. They further provide evolutionary insight into the function and regulation of gametophyte meristems in seed-free vascular plants.
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DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
A. Plackett;S. Conway;Kristen D Hazelton;Hewett;H. RabbinowitschEster;J. Langdale;Di Stilio;A. Plackett;Hewett Hazelton;Vero´nica;S. D. Stilio
通讯作者:
S. D. Stilio
DOI:
10.1073/pnas.1606614113
发表时间:
2016-11-08
影响因子:
11.1
作者:
McAdam, Scott A. M.;Brodribb, Timothy J.;Sussmilch, Frances C.
通讯作者:
Sussmilch, Frances C.
影响因子:
2.7
作者:
Bartz, Mateusz;Gola, Edyta M.
通讯作者:
Gola, Edyta M.
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
R. Imaichi
通讯作者:
R. Imaichi
影响因子:
4.6
作者:
Marchant, D. Blaine;Sessa, Emily B.;Soltis, Douglas E.
通讯作者:
Soltis, Douglas E.