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240331s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2024.108563
|2 doi
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|a pubmed24n1403.xml
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|e rakwb
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|a eng
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1 |
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|a Fukuoka, Nobuyuki
|e verfasserin
|4 aut
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|a Impact of changes in root biomass on the occurrence of internal browning in radish root
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|c 2024
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|a Text
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|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 09.05.2024
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|a Date Revised 09.05.2024
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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 The purpose of this study was to investigate the effects of root biomass during the later stage of growth on fatty acid composition and lipid peroxidation, and to clarify the physiological mechanisms by which these differences affect internal browning (IB) development in radish roots. Therefore, we controlled the enlargement of roots by changing the thinning period and generated plots composed of roots with different biomass in the latter half of growth. The earlier the radish seedlings were thinned, the more vigorous the root growth from an earlier stage was achieved. Earlier thinning caused IB from the early stage of root maturation, and IB severity progressed with subsequent age progression; however, IB damage did not occur when root size during the later growth stage was kept small by later thinning. Higher levels of hydrogen peroxide, peroxidase activity, NADPH-dependent reactive oxygen species (ROS) burst-related genes, and carbonyl compounds were detected in earlier-thinned large-sized roots compared to later-thinned small-sized ones. Compared with the latter small-sized roots, the former large-sized roots had a lower ratio of linoleic acid (18:2) and a higher ratio of α-linolenic acid (α-18:3). Furthermore, in earlier-thinned large-sized roots, higher levels of phospholipase- and/or lipoxygenase-related genes were detected compared to later-thinned small-sized ones. These facts suggest the possibility that root biomass in the later stage of growth affects the desaturation of membrane fatty acids, ROS concentration, and activity of fatty acid degrading enzymes, and controls the occurrence of IB injury through membrane oxidative degradation
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|a Journal Article
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|a Internal browning
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|a Lipid peroxidation
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|a Radish
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|a Root biomass
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|a Unsaturated fatty acid
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|a Fatty Acids
|2 NLM
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|a Hydrogen Peroxide
|2 NLM
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|a BBX060AN9V
|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 Linoleic Acid
|2 NLM
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| 650 |
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|a 9KJL21T0QJ
|2 NLM
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| 650 |
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|a alpha-Linolenic Acid
|2 NLM
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| 650 |
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|a 0RBV727H71
|2 NLM
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| 700 |
1 |
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|a Watanabe, Ryusei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hamada, Tatsuro
|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 210(2024) vom: 08. Mai, Seite 108563
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:210
|g year:2024
|g day:08
|g month:05
|g pages:108563
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|u http://dx.doi.org/10.1016/j.plaphy.2024.108563
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