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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2023.111824
|2 doi
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|a pubmed25n1202.xml
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|a (DE-627)NLM360724582
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|a (NLM)37572966
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|a (PII)S0168-9452(23)00241-8
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Chen, Peng
|e verfasserin
|4 aut
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| 245 |
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|a Enhancement patterns of potassium on nitrogen transport and functional genes in cotton vary with nitrogen levels
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|c 2023
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 31.08.2023
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|a Date Revised 31.08.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2023 Elsevier B.V. All rights reserved.
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|a The application of potassium (K) in conjunction with nitrogen (N) has been shown to enhance N use efficiency. However, there is still a need for further understanding of the optimal ratios and molecular regulatory mechanisms, particularly in soil-cotton systems. Here, a field trial was conducted, involving varying rates of N and K, alongside pot and hydroponic experiments. The objective was to assess the impact of N-K interaction on the absorption, transport and distribution of N in cotton. The results showed that K supply at 90 and 240 kg ha-1 had a beneficial impact on N uptake and distribution to both seed and lint, resulting in the highest N use efficiency ranging from 22% to 62% and yield improvements from 20% to 123%. The increase in stem and root diameters, rather than the quantify of xylem vessels and phloem sieve tubes, facilitated the uptake and transport of N due to the provision of K. At the molecular level, K supply upregulated the expression levels of genes encoding GhNRT2.1 transporter and GhSLAH3 channel in cotton roots to promote N uptake and GhNRT1.5/NPF7.3 genes to transport N to shoot under low-N conditions. However, under high-N conditions, K supply induced anion channel genes (GhSLAH4) of roots to promote N uptake and genes encoding GhNRT1.5/NPF7.3 and GhNRT1.8/NPF7.2 transporters to facilitate NO3- unloading from xylem to mesophyll cell in high-N plants. Furthermore, K supply resulted in the upregulation of gene expression for GhGS2 in leaves, while simultaneously downregulating the expression of GhNADH-GOGAT, GhGDH1 and GhGDH3 genes in high-N roots. The enzyme activities of nitrite reductase and glutamine synthetase increased and glutamate dehydrogenase decreased, but the concentration of NO3- and soluble protein exhibited a significant increase and free amino acid decreased in the shoots subsequent to K supply
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|a Journal Article
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|a N transporter
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4 |
|a N-K interaction
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|a Nitrogen use efficiency (NUE)
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| 650 |
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|a Nutrient cycling and recycling
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| 650 |
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4 |
|a Phloem and xylem transport
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| 650 |
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|a Potassium
|2 NLM
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| 650 |
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|a RWP5GA015D
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 650 |
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7 |
|a Nitrates
|2 NLM
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| 650 |
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7 |
|a Membrane Transport Proteins
|2 NLM
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| 700 |
1 |
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|a Li, Linyang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xia, Shujie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Runhua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Runqin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zeng, Xiao-Min
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shuai, Du
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Yi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Zhi-Guo
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 335(2023) vom: 01. Okt., Seite 111824
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnas
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| 773 |
1 |
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|g volume:335
|g year:2023
|g day:01
|g month:10
|g pages:111824
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| 856 |
4 |
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|u http://dx.doi.org/10.1016/j.plantsci.2023.111824
|3 Volltext
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|d 335
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