Prolonged drought affects the interaction of carbon and nitrogen metabolism in root and shoot of cotton

He, Jiaqi; Hu, Wei; Li, Yuxia; Zhu, Honghai; Zou, Jie; Wang, Youhua; Meng, Yali; Chen, Binglin; Zhao, Wenqing; Wang, Shanshan; Zhou, Zhiguo

doi:10.1016/j.envexpbot.2022.104839

Cited by 40 publications

(22 citation statements)

References 74 publications

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“…[CO 2 ] enrichment increased starch and sucrose contents under drought stress ( Figure 5 ) while increasing the abundance of sugar transport protein (STP) along with twelve key enzymes in the EMP pathway under moderate drought stress ( Table S7 ). Photosynthetic products synthesized in leaves and transported to roots can be converted into non-structural carbohydrates, mainly in the form of soluble sugars and starch, where soluble sugars can be used directly for growth and respiration while starch is used for energy storage [ 19 ]. Although drought inhibited CO 2 fixation and transport in leaves, the relative amount of photosynthetic products allocated to roots increased due to increased expression of STP under [CO 2 ] enrichment, which promotes sugar transport from source to sink, reduces cellular osmotic potential, and provides sufficient substrates for the EMP pathway, enhancing the root resistance of cucumber seedling roots to moderate drought stress [ 20 , 21 , 22 , 23 ].…”

Section: Discussionmentioning

confidence: 99%

Mechanism of [CO2] Enrichment Alleviated Drought Stress in the Roots of Cucumber Seedlings Revealed via Proteomic and Biochemical Analysis

Zhang

et al. 2022

IJMS

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Cucumber is one of the most widely cultivated greenhouse vegetables, and its quality and yield are threatened by drought stress. Studies have shown that carbon dioxide concentration ([CO2]) enrichment can alleviate drought stress in cucumber seedlings; however the mechanism of this [CO2] enrichment effect on root drought stress is not clear. In this study, the effects of different drought stresses (simulated with 0, 5% and 10% PEG 6000, i.e., no, moderate, and severe drought stress) and [CO2] (400 μmol·mol−1 and 800 ± 40 μmol·mol−1) on the cucumber seedling root proteome were analyzed using the tandem mass tag (TMT) quantitative proteomics method. The results showed that after [CO2] enrichment, 346 differentially accumulating proteins (DAPs) were found only under moderate drought stress, 27 DAPs only under severe drought stress, and 34 DAPs under both moderate and severe drought stress. [CO2] enrichment promoted energy metabolism, amino acid metabolism, and secondary metabolism, induced the expression of proteins related to root cell wall and cytoskeleton metabolism, effectively maintained the balance of protein processing and degradation, and enhanced the cell wall regulation ability. However, the extent to which [CO2] enrichment alleviated drought stress in cucumber seedling roots was limited under severe drought stress, which may be due to excessive damage to the seedlings.

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Section: Discussionmentioning

confidence: 99%

Mechanism of [CO2] Enrichment Alleviated Drought Stress in the Roots of Cucumber Seedlings Revealed via Proteomic and Biochemical Analysis

Zhang

et al. 2022

IJMS

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“…In Arabidopsis thaliana , AtSWEET11 , AtSWEET12 , and AtSUC2 are known to mediate sucrose transport to the root in response to drought 70 . Recent research has shown that the increased expression of sucrose transporter genes GhSUT4 , GhSUT9 , and GhSWEET55 in cotton leaves enhances sucrose transport in response to short‐term drought 71 . However, under prolonged drought conditions, the upregulation of these genes was drastically reversed.…”

Section: Environmental Cues Affecting the Source–sink Relationship An...mentioning

confidence: 99%

The interplay of carbon and nitrogen distribution: Prospects for improved crop yields

2023

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Growth and productivity of plants primarily depend on the balanced distribution of carbon (C) and nitrogen (N) among different organs. Previous studies on crop improvement have focussed on the C or N assimilation and distribution. However, recent findings reveal that C and N form a complex integrated network and are often dependent on each other to affect crop productivity. The underlying physiological and molecular mechanisms involved in the coordinated distribution of C and N among different plant organs are yet to be fully uncovered. Crucial roles in regulating C and N balance are played by transporters that mediate their movement across different organs. In Cotton, which has an indeterminate growth pattern, source-sink assimilate distribution could be a major bottleneck impeding fibre productivity. This review summarises our current understanding of C and N transport mechanisms, explores and compares different physiological and molecular approaches involved in the C-N distribution cascade, including cotton and other plant species. A comprehensive understanding of these integrated regulatory mechanisms is crucial for improving crop yields and fibre productivity.

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“… (1) ( Xu et al., 2009 ); (2) ( Chen et al., 2016 ); (3) ( Delfin et al., 2021 ); (4) ( He et al., 2022 ); (5) ( Schneider et al., 2020 ); (6) ( Liao et al., 2022 ); (7) ( Chandregowda et al., 2022 ); (8) ( Slette et al., 2022 ); (9) ( Jongrungklang et al., 2014 ); (10) ( De Bauw et al., 2019 ); (11) ( de Vries et al., 2019 ); (12) ( Brunn et al., 2022 ); (13) ( Preece and Penuelas, 2016 ); (14) ( de Vries et al., 2020 ); (15) ( Santos-Medellin et al., 2021 ). …”

Section: Implications and Future Perspectivesmentioning

confidence: 99%

Plant root plasticity during drought and recovery: What do we know and where to go?

Zheng

Bochmann²,

Liu³

et al. 2023

Front. Plant Sci.

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AimsDrought stress is one of the most limiting factors for agriculture and ecosystem productivity. Climate change exacerbates this threat by inducing increasingly intense and frequent drought events. Root plasticity during both drought and post-drought recovery is regarded as fundamental to understanding plant climate resilience and maximizing production. We mapped the different research areas and trends that focus on the role of roots in plant response to drought and rewatering and asked if important topics were overlooked.MethodsWe performed a comprehensive bibliometric analysis based on journal articles indexed in the Web of Science platform from 1900-2022. We evaluated a) research areas and temporal evolution of keyword frequencies, b) temporal evolution and scientific mapping of the outputs over time, c) trends in the research topics analysis, d) marked journals and citation analysis, and e) competitive countries and dominant institutions to understand the temporal trends of root plasticity during both drought and recovery in the past 120 years.ResultsPlant physiological factors, especially in the aboveground part (such as “photosynthesis”, “gas-exchange”, “abscisic-acid”) in model plants Arabidopsis, crops such as wheat and maize, and trees were found to be the most popular study areas; they were also combined with other abiotic factors such as salinity, nitrogen, and climate change, while dynamic root growth and root system architecture responses received less attention. Co-occurrence network analysis showed that three clusters were classified for the keywords including 1) photosynthesis response; 2) physiological traits tolerance (e.g. abscisic acid); 3) root hydraulic transport. Thematically, themes evolved from classical agricultural and ecological research via molecular physiology to root plasticity during drought and recovery. The most productive (number of publications) and cited countries and institutions were situated on drylands in the USA, China, and Australia. In the past decades, scientists approached the topic mostly from a soil-plant hydraulic perspective and strongly focused on aboveground physiological regulation, whereas the actual belowground processes seemed to have been the elephant in the room. There is a strong need for better investigation into root and rhizosphere traits during drought and recovery using novel root phenotyping methods and mathematical modeling.

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Prolonged drought affects the interaction of carbon and nitrogen metabolism in root and shoot of cotton

Cited by 40 publications

References 74 publications

Mechanism of [CO2] Enrichment Alleviated Drought Stress in the Roots of Cucumber Seedlings Revealed via Proteomic and Biochemical Analysis

Mechanism of [CO2] Enrichment Alleviated Drought Stress in the Roots of Cucumber Seedlings Revealed via Proteomic and Biochemical Analysis

The interplay of carbon and nitrogen distribution: Prospects for improved crop yields

Plant root plasticity during drought and recovery: What do we know and where to go?

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