GUN4-mediated tetrapyrrole metabolites regulates starch biosynthesis during early seed development in rice

Li, Ruiqing; Jiang, Meng; Wenying, Zheng; Zhang, Huali

doi:10.1016/j.jcs.2021.103317

Cited by 5 publications

(2 citation statements)

References 31 publications

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“…As previously stated, 40 the accumulations of tetrapyrrole intermediates were detected. The method of Czarnecki et al ( 2012) 41 was utilized to determine the 5-aminolevulinic acid (ALA) level.…”

Section: Rice Plant Treatmentmentioning

confidence: 99%

Chitosan-Magnesium Oxide Nanoparticles Improve Salinity Tolerance in Rice (Oryza sativa L.)

Song

Zheng

et al. 2023

ACS Appl. Mater. Interfaces

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High-salinity (HS) stress is a global element restricting agricultural productivity. Rice is a significant food crop, but soil salinity has a detrimental impact on its yield and product quality. Nanoparticles (NPs) have been found as a mitigation method against different abiotic stresses, even HS stress. In this study, chitosan-magnesium oxide NPs (CMgO NPs) were used as a new method for rice plants to alleviate salt stress (200 mM NaCl). The results showed that 100 mg/L CMgO NPs greatly ameliorated salt stress by enhancing the root length by 37.47%, dry biomass by 32.86%, plant height by 35.20%, and tetrapyrrole biosynthesis in hydroponically cultured rice seedlings. The application of 100 mg/L CMgO NPs greatly alleviated salt-generated oxidative stress with induced activities of antioxidative enzymes, catalase by 67.21%, peroxidase by 88.01%, and superoxide dismutase by 81.19%, and decreased contents of malondialdehyde by 47.36% and H2O2 by 39.07% in rice leaves. The investigation of ion content in rice leaves revealed that rice treated with 100 mg/L CMgO NPs maintained a noticeably higher K+ level by 91.41% and a lower Na+ level by 64.49% and consequently a higher ratio of K+/Na+ than the control under HS stress. Moreover, the CMgO NPs supplement greatly enhanced the contents of free amino acids under salt stress in rice leaves. Therefore, our findings propose that CMgO NPs supplementation could mitigate the salt stress in rice seedlings.

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Section: Rice Plant Treatmentmentioning

confidence: 99%

Chitosan-Magnesium Oxide Nanoparticles Improve Salinity Tolerance in Rice (Oryza sativa L.)

Song

Zheng

et al. 2023

ACS Appl. Mater. Interfaces

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“…Interestingly, some common regulatory factors of starch synthesis exist between chloroplasts and amyloplasts. For example, the expression of starch biosynthetic genes, i.e., GBSSI , was partly mediated by tetrapyrrole intermediates, i.e., heme, in endosperm during early seed development in rice [ 8 ], suggesting potential shared regulatory networks in various plastids.…”

Section: Introductionmentioning

confidence: 99%

Regulators of Starch Biosynthesis in Cereal Crops

Tan

Zhang

2021

Molecules

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Starch is the main food source for human beings and livestock all over the world, and it is also the raw material for production of industrial alcohol and biofuel. A considerable part of the world’s annual starch production comes from crops and their seeds. With the increasing demand for starch from food and non-food industries and the growing loss of arable land due to urbanization, understanding starch biosynthesis and its regulators is essential to produce the desirable traits as well as more and better polymers via biotechnological approaches in cereal crops. Because of the complexity and flexibility of carbon allocation in the formation of endosperm starch, cereal crops require a broad range of enzymes and one matching network of regulators to control the providential functioning of these starch biosynthetic enzymes. Here, we comprehensively summarize the current knowledge about regulatory factors of starch biosynthesis in cereal crops, with an emphasis on the transcription factors that directly regulate starch biosynthesis. This review will provide new insights for the manipulation of bioengineering and starch biosynthesis to improve starch yields or qualities in our diets and in industry.

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An alanine to valine mutation of glutamyl-tRNA reductase enhances 5-aminolevulinic acid synthesis in rice

et al. 2022

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GUN4-mediated tetrapyrrole metabolites regulates starch biosynthesis during early seed development in rice

Cited by 5 publications

References 31 publications

Chitosan-Magnesium Oxide Nanoparticles Improve Salinity Tolerance in Rice (Oryza sativa L.)

Chitosan-Magnesium Oxide Nanoparticles Improve Salinity Tolerance in Rice (Oryza sativa L.)

Regulators of Starch Biosynthesis in Cereal Crops

An alanine to valine mutation of glutamyl-tRNA reductase enhances 5-aminolevulinic acid synthesis in rice

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