The decision to germinate is regulated by divergent molecular networks in spores and seeds

The decision to germinate is regulated by divergent molecular networks in spores and seeds

© 2016 The Authors. New Phytologist © 2016 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 211(2016), 3 vom: 03. Aug., Seite 952-66
1. Verfasser: Vesty, Eleanor F (VerfasserIn)
Weitere Verfasser: Saidi, Younousse, Moody, Laura A, Holloway, Daniel, Whitbread, Amy, Needs, Sarah, Choudhary, Anushree, Burns, Bethany, McLeod, Daniel, Bradshaw, Susan J, Bae, Hansol, King, Brian Christopher, Bassel, George W, Simonsen, Henrik Toft, Coates, Juliet C
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Physcomitrella abscisic acid (ABA) ent-kaurenes ethylene high temperature light spore germination strigolactones mehr... Diterpenes Diterpenes, Kaurane Lactones Sucrose 57-50-1 Abscisic Acid 72S9A8J5GW
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520 |a Dispersal is a key step in land plant life cycles, usually via formation of spores or seeds. Regulation of spore- or seed-germination allows control over the timing of transition from one generation to the next, enabling plant dispersal. A combination of environmental and genetic factors determines when seed germination occurs. Endogenous hormones mediate this decision in response to the environment. Less is known about how spore germination is controlled in earlier-evolving nonseed plants. Here, we present an in-depth analysis of the environmental and hormonal regulation of spore germination in the model bryophyte Physcomitrella patens (Aphanoregma patens). Our data suggest that the environmental signals regulating germination are conserved, but also that downstream hormone integration pathways mediating these responses in seeds were acquired after the evolution of the bryophyte lineage. Moreover, the role of abscisic acid and diterpenes (gibberellins) in germination assumed much greater importance as land plant evolution progressed. We conclude that the endogenous hormone signalling networks mediating germination in response to the environment may have evolved independently in spores and seeds. This paves the way for future research about how the mechanisms of plant dispersal on land evolved 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Physcomitrella 
650 4 |a abscisic acid (ABA) 
650 4 |a ent-kaurenes 
650 4 |a ethylene 
650 4 |a high temperature 
650 4 |a light 
650 4 |a spore germination 
650 4 |a strigolactones 
650 7 |a Diterpenes  |2 NLM 
650 7 |a Diterpenes, Kaurane  |2 NLM 
650 7 |a Lactones  |2 NLM 
650 7 |a Sucrose  |2 NLM 
650 7 |a 57-50-1  |2 NLM 
650 7 |a Abscisic Acid  |2 NLM 
650 7 |a 72S9A8J5GW  |2 NLM 
700 1 |a Saidi, Younousse  |e verfasserin  |4 aut 
700 1 |a Moody, Laura A  |e verfasserin  |4 aut 
700 1 |a Holloway, Daniel  |e verfasserin  |4 aut 
700 1 |a Whitbread, Amy  |e verfasserin  |4 aut 
700 1 |a Needs, Sarah  |e verfasserin  |4 aut 
700 1 |a Choudhary, Anushree  |e verfasserin  |4 aut 
700 1 |a Burns, Bethany  |e verfasserin  |4 aut 
700 1 |a McLeod, Daniel  |e verfasserin  |4 aut 
700 1 |a Bradshaw, Susan J  |e verfasserin  |4 aut 
700 1 |a Bae, Hansol  |e verfasserin  |4 aut 
700 1 |a King, Brian Christopher  |e verfasserin  |4 aut 
700 1 |a Bassel, George W  |e verfasserin  |4 aut 
700 1 |a Simonsen, Henrik Toft  |e verfasserin  |4 aut 
700 1 |a Coates, Juliet C  |e verfasserin  |4 aut 
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773 1 8 |g volume:211  |g year:2016  |g number:3  |g day:03  |g month:08  |g pages:952-66 
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