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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2023.108107
|2 doi
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|a pubmed25n1216.xml
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|e rakwb
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|a eng
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|a Wu, KongYuan
|e verfasserin
|4 aut
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|a Selenite reduced cadmium uptake, interfered signal transduction of endogenous phytohormones, and stimulated secretion of tartaric acid based on a combined analysis of non-invasive micro-test technique, transcriptome and metabolome
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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 14.02.2024
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|a Date Revised 14.02.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2023 Elsevier Masson SAS. All rights reserved.
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|a Selenium (Se) can reduce uptake and translocation of cadmium (Cd) in plants via plenty of ways, including regulation of root morphology. However, the underlying mechanisms on how Se will regulate root morphology under metal(loid) stresses are not fully illustrated. To fill up this knowledge gap, we investigated the effects of 0.5 mg L-1 selenite (Se(IV)) on root exudates, root morphology, root endogenous hormones, and Cd uptake efficiency of rice under the 1 mg L-1 Cd stress condition. The results showed that Se(IV) significantly reduced shoot and root Cd concentrations, and decreased Cd uptake efficiency via root hairs determined by a non-invasive micro-test (NMT) technology. When compared to the 1 mg L-1 Cd (Cd1) treatment, addition of 0.5 mg L-1 Se(IV) (1) significantly reduced root surface area and tip numbers, and non-significantly reduced root length, but significantly enhanced root diameter and root volume; (2) significantly enhanced concentrations of tartaric acid in the root exudate solution, root auxin (IAA) and root jasmonic acid (JA) via a UHPLC or a HPLC analysis; (3) significantly up-regulated metabolites correlated with synthesis of IAA, JA, gibberellin (GA), and salicylic acid, such as GA53, M-SA, (+/-)7-epi-JA, and derivatives of tryptophan and indole in the metabolome analysis. However, results of transcriptome analysis showed that (1) no upregulated differentially expressed genes (DEGs) were enriched in IAA synthesis; (2) some upregulated DEGs were found to be enriched in JA and GA53 synthesis pathways. In summary, although Se(IV) stimulated the synthesis of IAA, JA, and GA53, it significantly inhibited root growth mainly by 1) affecting signal transduction of IAA and GA; 2) altering IAA polar transport and homeostasis; and 3) regulating DEGs including SAUR32, SAUR36, SAUR76, OsSub33, OsEXPA8, OsEXPA18, and Os6bglu24
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|a Journal Article
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|a Gibberellin
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|a Jasmonic acid
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|a Selenite
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|a Signal transduction
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|a Tartaric acid
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|a Plant Growth Regulators
|2 NLM
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|a Cadmium
|2 NLM
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|a 00BH33GNGH
|2 NLM
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|a tartaric acid
|2 NLM
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|a W4888I119H
|2 NLM
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| 650 |
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|a Selenious Acid
|2 NLM
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|a F6A27P4Q4R
|2 NLM
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|a Tartrates
|2 NLM
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| 700 |
1 |
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|a Wang, LiZhen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, ZiHan
|e verfasserin
|4 aut
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| 700 |
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|a Liu, ZiQing
|e verfasserin
|4 aut
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|a Li, ZengFei
|e verfasserin
|4 aut
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|a Shen, Jun
|e verfasserin
|4 aut
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|a Shi, ShengJie
|e verfasserin
|4 aut
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|a Liu, Hong
|e verfasserin
|4 aut
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|a Rensing, Christopher
|e verfasserin
|4 aut
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|a Feng, Renwei
|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 206(2024) vom: 01. Jan., Seite 108107
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnas
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| 773 |
1 |
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|g volume:206
|g year:2024
|g day:01
|g month:01
|g pages:108107
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|u http://dx.doi.org/10.1016/j.plaphy.2023.108107
|3 Volltext
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