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250714s2025 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2025.110050
|2 doi
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|a pubmed25n1415.xml
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|a (DE-627)NLM388939338
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|a DE-627
|b ger
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Zhang, Zhaoning
|e verfasserin
|4 aut
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| 245 |
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|a Starch-sucrose metabolic homeostasis in germinating soybean reserve mobilization with different levels of salt stress
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|c 2025
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 23.05.2025
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Copyright © 2025 Elsevier Masson SAS. All rights reserved.
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|a Salt stress is one of the abiotic factors limiting crop growth. However, the mechanisms regulating starch-sucrose metabolism in the mobilization of soybean (Glycine max L.) reserves at different levels of salt stress during germination remain unknown. This study evaluated the effects of different levels of salt stress [0 mmol L-1 NaCl (CK), 75 mmol L-1 NaCl (S), and 150 mmol L-1 NaCl (SS)] on germinating seeds of three soybean varieties. Salt stress, especially the SS treatment, significantly reduced the radicle length, radicle fresh weight, and total fresh weight. Salt stress had different effects on the starch accumulation of cotyledons and radicles, while significantly increased the sucrose accumulation through several mechanisms. The regulatory mechanisms governing starch-sucrose metabolism in cotyledon and radicle during the germination stage exhibit distinct differences. In cotyledons, the decrease of starch content under S and SS treatment was due to the decrease of sucrose decomposition, which inhibited the metabolic cycle of starch. The up-regulated expression of GmSWEET6/15 under different levels of salt stress can promote the accumulation of sucrose in radicles. However, different salt stress levels have different response mechanisms to sucrose and starch metabolism in radicles. The activities of sucrose-metabolizing enzymes sucrose synthase (cleavage) and invertase in the radicle of S treatment were significantly reduced, while SS treatment could activate the sucrose metabolic cycle and increase the efficiency of starch-sucrose conversion. Compared with S treatment, the accumulation of starch content in SS treatment was due to the increase of SSS, α-amylase and β-amylase activities and the up-regulation of GmAMY3 and GmBAM1 expression levels. Based on the results of this study, in order to promote soybean germination in saline soils, rationalized soybean seed compositions can be designed according to the degree of salinity in each region, which can provide a reference to the future breeding of salt-tolerant soybeans
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|a Journal Article
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|a Germination stage
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|a Reserve mobilization
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|a Salt stress
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|a Soybean (Glycine max L.)
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| 650 |
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|a Starch-sucrose metabolism
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| 700 |
1 |
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|a Zhao, Qiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Weiyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Feng, Ruiqi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cao, Yu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Guangda
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Du, Jidao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Du, Yanli
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 225(2025) vom: 19. Mai, Seite 110050
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnas
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| 773 |
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|g volume:225
|g year:2025
|g day:19
|g month:05
|g pages:110050
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|u http://dx.doi.org/10.1016/j.plaphy.2025.110050
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