BRASSINAZOLE RESISTANT 1 Mediates Brassinosteroid-Induced Calvin Cycle to Promote Photosynthesis in Tomato

Xu, Yin; Tang, Mingjia; Xia, Xiaojian; Yu, Jingquan

doi:10.3389/fpls.2021.811948

Cited by 12 publications

(5 citation statements)

References 55 publications

(70 reference statements)

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“…It is necessary to use them reasonably according to the characteristics of their effects to reduce herbicide damage. 24-epibrassinolide can effectively improve the chlorophyll content and photosynthetic efficiency of plants [56,57], protect flowers and fruits [58], and reduce the occurrence of drug damage [59]. GA 3 can promote plant flowering [60], increase fruit setting rate and yield [61].…”

Section: Discussionmentioning

confidence: 99%

Use of plant growth regulators to reduce 2-methyl-4-chlorophenoxy acetic acid-Na (MPCA-Na) damage in cotton (Gossypium hirsutum)

Zhang

Wang

2022

BMC Plant Biol

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Background 2-methyl-4-chlorophenoxy acetic acid-Na (MPCA-Na) is a phenoxy carboxylic acid selective hormone herbicide that is widely used in the crop fields. However, drift of MPCA-Na during application is highly damaging to cotton (Gossypium hirsutum) and other crop plants. This study was carried out from 2019 to 2020 to determine the effects of different concentrations of MPCA-Na on physiological and metabolic activities besides growth and yield of cotton plants at seedling, budding, flowering and boll stages. Moreover, we evaluated the different combinations of 24-epibrassinolide, gibberellin (GA3), phthalanilic acid and seaweed fertilizer to ameliorate herbicide damage. Results 2-methyl-4-chlorophenoxy acetic acid-Na (MPCA-Na) exposure caused a decrease in the chlorophyll content, and an increase in the soluble protein content, Malondialdehyde (MDA) content and protective enzyme activity. It also caused significant reductions in plant height, boll number and the single boll weight at the seedling and budding stages, but had little effects on plant height and the single boll weight at flowering and boll stage. Under the maximum recommended dose of MPCA-Na (130 g/L), the number of cotton bolls at seedling and budding stages decreased by 75.33 and 79.50%, respectively, and the single boll weight decreased by 46.42 and 36.31%, respectively. Nevertheless, the number of G. hirsutum bolls and single boll weight at flowering and boll stage decreased by 48.15 and 5.38%, respectively. Application of plant growth regulators decreased the MDA content, and increased chlorophyll, soluble protein content and protective enzyme activity, and alleviated MCPA-Na toxicity. Positive effects in case of growth regulators treated plants were also observed in terms of G. hirsutum yield. Phthalanilic acid + seaweed fertilizer, 24-epibrassinolide + seaweed fertilizer, and GA3 + seaweed fertilizer should be used at the seedling, budding, and flowering and boll stages, respectively. Conclusions The results of current study suggest that certain plant growth regulators could be used to alleviate MPCA-Na damage and maintain G. hirsutum yield. When the cotton exposed to MCPA-Na at the seedling stage, it should be treated with phthalanilic acid + seaweed fertilizer, while plants exposed at the budding stage should be treated with 24-epibrassinolide + seaweed fertilizer, and those exposed at the flowering and boll stages should be treated with GA3 + seaweed fertilizer to mitigate stress.

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Section: Discussionmentioning

confidence: 99%

Use of plant growth regulators to reduce 2-methyl-4-chlorophenoxy acetic acid-Na (MPCA-Na) damage in cotton (Gossypium hirsutum)

Zhang

Wang

2022

BMC Plant Biol

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“…Especially, retuning RuBP regeneration, via simultaneous incorporation of proteins that function outside of the CBB cycle, can significantly improve photosynthesis and plant growth over single gene manipulations ( Simkin et al., 2015 ; Simkin et al., 2019 ; Raines, 2022 ). Besides, increased expression of brassinole resistant 1 (BZR1) TF amplified the expression of a set of CBB cycle genes ( RCA1 , FBA1 , PGK1 and FBP5 ) and improved photosynthetic capacity, revealing that concurrent OE of these multiple proteins can invigorate the CBB cycle ( Yin et al., 2021 ; Raines, 2022 ).…”

Section: Key Pathways Targeted For Manipulationmentioning

confidence: 99%

Metabolic pathways engineering for drought or/and heat tolerance in cereals

Liu,

Zenda,

Tian

et al. 2023

Front. Plant Sci.

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Drought (D) and heat (H) are the two major abiotic stresses hindering cereal crop growth and productivity, either singly or in combination (D/+H), by imposing various negative impacts on plant physiological and biochemical processes. Consequently, this decreases overall cereal crop production and impacts global food availability and human nutrition. To achieve global food and nutrition security vis-a-vis global climate change, deployment of new strategies for enhancing crop D/+H stress tolerance and higher nutritive value in cereals is imperative. This depends on first gaining a mechanistic understanding of the mechanisms underlying D/+H stress response. Meanwhile, functional genomics has revealed several stress-related genes that have been successfully used in target-gene approach to generate stress-tolerant cultivars and sustain crop productivity over the past decades. However, the fast-changing climate, coupled with the complexity and multigenic nature of D/+H tolerance suggest that single-gene/trait targeting may not suffice in improving such traits. Hence, in this review-cum-perspective, we advance that targeted multiple-gene or metabolic pathway manipulation could represent the most effective approach for improving D/+H stress tolerance. First, we highlight the impact of D/+H stress on cereal crops, and the elaborate plant physiological and molecular responses. We then discuss how key primary metabolism- and secondary metabolism-related metabolic pathways, including carbon metabolism, starch metabolism, phenylpropanoid biosynthesis, γ-aminobutyric acid (GABA) biosynthesis, and phytohormone biosynthesis and signaling can be modified using modern molecular biotechnology approaches such as CRISPR-Cas9 system and synthetic biology (Synbio) to enhance D/+H tolerance in cereal crops. Understandably, several bottlenecks hinder metabolic pathway modification, including those related to feedback regulation, gene functional annotation, complex crosstalk between pathways, and metabolomics data and spatiotemporal gene expressions analyses. Nonetheless, recent advances in molecular biotechnology, genome-editing, single-cell metabolomics, and data annotation and analysis approaches, when integrated, offer unprecedented opportunities for pathway engineering for enhancing crop D/+H stress tolerance and improved yield. Especially, Synbio-based strategies will accelerate the development of climate resilient and nutrient-dense cereals, critical for achieving global food security and combating malnutrition.

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“…For example, overexpression of triose phosphate isomerase (TPI) in conjunction with other CBB cycle enzymes may provide further enhancements in carbon assimilation, by removing triose phosphate limitation (Suzuki et al ., 2022 ). The expression of a group of CBB cycle genes ( FBA1 , RCA1 , FBP5 and PGK1 ) was increased when the expression of the Brassinole resistant 1 transcription factor (BZR1) was increased and enhanced photosynthetic capacity was observed, suggesting that simultaneous overexpression of these proteins may stimulate the CBB cycle (Yin et al ., 2022 ). These new findings, together with advancements in modeling, open up opportunities to re‐engineer the CBB cycle to maximize improvements.…”

Section: Transgenic Manipulation Of Rubp Regenerationmentioning

confidence: 99%

Improving plant productivity by re‐tuning the regeneration ofRuBPin the Calvin–Benson–Bassham cycle

Raines

2022

New Phytologist

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The Calvin-Benson-Bassham (CBB) cycle is arguably the most important pathway on earth, capturing CO 2 from the atmosphere and converting it into organic molecules, providing the basis for life on our planet. This cycle has been intensively studied over the 50 yr since it was elucidated, and it is highly conserved across nature, from cyanobacteria to the largest of our land plants. Eight out of the 11 enzymes in this cycle catalyse the regeneration of ribulose-1-5 bisphosphate (RuBP), the CO 2 acceptor molecule. The potential to manipulate RuBP regeneration to improve photosynthesis has been demonstrated in a number of plant species, and the development of new technologies, such as omics and synthetic biology provides exciting future opportunities to improve photosynthesis and increase crop yields.

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BRASSINAZOLE RESISTANT 1 Mediates Brassinosteroid-Induced Calvin Cycle to Promote Photosynthesis in Tomato

Cited by 12 publications

References 55 publications

Use of plant growth regulators to reduce 2-methyl-4-chlorophenoxy acetic acid-Na (MPCA-Na) damage in cotton (Gossypium hirsutum)

Use of plant growth regulators to reduce 2-methyl-4-chlorophenoxy acetic acid-Na (MPCA-Na) damage in cotton (Gossypium hirsutum)

Metabolic pathways engineering for drought or/and heat tolerance in cereals

Improving plant productivity by re‐tuning the regeneration ofRuBPin the Calvin–Benson–Bassham cycle

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