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240125s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2024.108352
|2 doi
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|a pubmed25n1224.xml
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|a eng
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|a Jhanji, Shalini
|e verfasserin
|4 aut
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|a Exploring fine tuning between phytohormones and ROS signaling cascade in regulation of seed dormancy, germination and seedling development
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 18.03.2024
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|a Date Revised 18.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier Masson SAS. All rights reserved.
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|a In higher plants, seed is a propagule which ensures dissemination and survival of species. Developmental phases of a seed comprise embryogenesis, maturation and germination paving a way to its final fate i.e. seedling establishment. The final stage of seed maturation is marked by dehydration, acquisition of dessication tolerance and induction of dormancy. A precise Abscisic acid (ABA) to Gibberellins (GA) ratio, accumulation of miRNA 156, low level of reactive oxygen species (ROS) and enzyme inactivity govern seed dormancy. This also prevent pre harvest sprouting of the seeds. Overtime, stored seed mRNAs and proteins are degraded through oxidation of specific nucleotides in response to ROS accumulation. This degradation alleviates seed dormancy and transforms a dormant seed into a germinating seed. At this stage, ABA catabolism and degradation accompanied by GA synthesis contribute to low ABA to GA ratio. GA as well as ROS acts downstream, to mobilize reserve food materials, rupture testa, enhance imbibition and protrude radicle. All these events mark seed germination. Further, seedling is established under the governance of auxin and light. ABA and GA are master regulators while auxin, cytokinins, ethylene, jasmonic acid, brassinosteroids act through interdependent pathways to tightly regulate seed dormancy, germination and seedling establishment. In this review, the role of phytohormones and ROS in accordance with environmental factors in governing seed dormancy, promoting seed germination and thus, establishing a seedling is discussed in detail
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|a Journal Article
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|a Review
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|a Germination
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|a Phytohormones
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|a ROS
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|a Seed dormancy
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|a Seedling establishment
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| 650 |
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|a Plant Growth Regulators
|2 NLM
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| 650 |
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|a Reactive Oxygen Species
|2 NLM
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| 650 |
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|a Abscisic Acid
|2 NLM
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| 650 |
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|a 72S9A8J5GW
|2 NLM
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| 650 |
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|a Gibberellins
|2 NLM
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| 650 |
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|a Indoleacetic Acids
|2 NLM
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| 700 |
1 |
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|a Goyal, Eena
|e verfasserin
|4 aut
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|a Chumber, Manisha
|e verfasserin
|4 aut
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| 700 |
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|a Kaur, Gurpreet
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 207(2024) vom: 15. Feb., Seite 108352
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnas
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| 773 |
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|g volume:207
|g year:2024
|g day:15
|g month:02
|g pages:108352
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|u http://dx.doi.org/10.1016/j.plaphy.2024.108352
|3 Volltext
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