Nanoceria-induced variations in leaf anatomy and cell wall composition drive the increase in mesophyll conductance of salt-stressed cotton leaves

Copyright © 2024 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 216(2024) vom: 10. Nov., Seite 109111
1. Verfasser: Yang, Yuanli (VerfasserIn)
Weitere Verfasser: Yang, Xinyi, Dai, Kangning, He, Shuyu, Zhao, Wenqing, Wang, Shanshan, Zhou, Zhiguo, Hu, Wei
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Cell wall composition Leaf anatomy Mesophyll conductance Nanoceria Photosynthesis Salt stress Cerium 30K4522N6T ceric oxide mehr... 619G5K328Y carbopol 940 4Q93RCW27E Acrylic Resins
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520 |a Nanomaterials as an emerging tool are being used to improve plant's net photosynthetic rate (AN) when suffering salt stress, but the underlying mechanisms remain unclear. To clarify this, a hydroponic experiment was conducted to study the effects of polyacrylic acid coated nanoceria (PNC) on the AN of salt-stressed cotton and related intrinsic mechanisms. Results showed that the PNC-induced AN enhancement of salt-stressed leaves was strongly facilitated by the mesophyll conductance to CO2 (gm). Further analysis showed that the PNC-induced improvement of gm was related to the increased chloroplast surface area exposed to intercellular airspaces, which was attribute to the increased mesophyll surface area exposed to intercellular airspaces and chloroplast number due to the increased K+ content and decreased reactive oxygen species level in salt-stressed leaves. Interestingly, our results also showed that PNC-induced variations in cell wall composition of salt-stressed cotton leaves strongly influenced gm, especially, hemicellulose and pectin. Moreover, the proportion of pectin in cell wall composition played a more important role in determining gm. Our study demonstrated for the first time that nanoceria, through alterations to anatomical traits and cell wall composition, drove gm enhancement, which ultimately increased AN of salt-stressed leaves 
650 4 |a Journal Article 
650 4 |a Cell wall composition 
650 4 |a Leaf anatomy 
650 4 |a Mesophyll conductance 
650 4 |a Nanoceria 
650 4 |a Photosynthesis 
650 4 |a Salt stress 
650 7 |a Cerium  |2 NLM 
650 7 |a 30K4522N6T  |2 NLM 
650 7 |a ceric oxide  |2 NLM 
650 7 |a 619G5K328Y  |2 NLM 
650 7 |a carbopol 940  |2 NLM 
650 7 |a 4Q93RCW27E  |2 NLM 
650 7 |a Acrylic Resins  |2 NLM 
700 1 |a Yang, Xinyi  |e verfasserin  |4 aut 
700 1 |a Dai, Kangning  |e verfasserin  |4 aut 
700 1 |a He, Shuyu  |e verfasserin  |4 aut 
700 1 |a Zhao, Wenqing  |e verfasserin  |4 aut 
700 1 |a Wang, Shanshan  |e verfasserin  |4 aut 
700 1 |a Zhou, Zhiguo  |e verfasserin  |4 aut 
700 1 |a Hu, Wei  |e verfasserin  |4 aut 
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