Brassinosteroids-Mediated Amelioration of Iron Deficiency in Soybean Plants: Beneficial Effects on the Nutritional Status, Photosynthetic Pigments and Chlorophyll Fluorescence

Santos, Lucilene Rodrigues dos; Paula, Lucélia de Sousa; Pereira, Ynglety Cascaes; Silva, Breno Ricardo Serrão da; Batista, Bruno Lemos; Alsahli, Abdulaziz Abdullah; Lobato, Allan Klynger da Silva

doi:10.1007/s00344-020-10232-y

Cited by 13 publications

(4 citation statements)

References 119 publications

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“…The increase in the activity of antioxidant enzymes is also responsible for reducing oxidative stress and eliminating the ROS produced during salt stress ( Tewari, Kumar & Sharma, 2019 ; Zhang et al, 2019 ; Chung et al, 2020 ; Kim et al, 2021 ). These nutrients are structural components of the chlorophyll molecule and play a role in forming the amino acids necessary for the processes of the antioxidant defense system, acting as enzymatic cofactors, for example ( Rahman et al, 2016 ; Tewari, Kumar & Sharma, 2019 ; Santos et al, 2021 ). Besides this, the greater activity of the antioxidant system enzymes leads to lower degradation of chlorophyll ( Gong et al, 2018 ).…”

Section: Discussionmentioning

confidence: 99%

Anatomical and physiological responses of Aechmea blanchetiana (Bromeliaceae) induced by silicon and sodium chloride stress during in vitro culture

Cipriano

Martins

Conde

et al. 2023

PeerJ

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Salt stress is one of the most severe abiotic stresses affecting plant growth and development. The application of silicon (Si) is an alternative that can increase the tolerance of plants to various types of biotic and abiotic stresses. The objective was to evaluate salt stress’s effect in vitro and Si’s mitigation potential on Aechmea blanchetiana plants. For this purpose, plants already established in vitro were transferred to a culture medium with 0 or 14 µM of Si (CaSiO3). After growth for 30 days, a stationary liquid medium containing different concentrations of NaCl (0, 100, 200, or 300 µM) was added to the flasks. Anatomical and physiological analyses were performed after growth for 45 days. The plants cultivated with excess NaCl presented reduced root diameter and effective photochemical quantum yield of photosystem II (PSII) (ΦPSII) and increased non-photochemical dissipation of fluorescence (qN). Plants that grew with the presence of Si also had greater content of photosynthetic pigments and activity of the enzymes of the antioxidant system, as well as higher values of maximum quantum yield of PSII (FV/FM), photochemical dissipation coefficient of fluorescence (qP) and fresh weight bioaccumulation of roots and shoots. The anatomical, physiological and biochemical responses, and growth induced by Si mitigated the effect of salt stress on the A. blanchetiana plants cultivated in vitro, which can be partly explained by the tolerance of this species to grow in sandbank (Restinga) areas.

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Section: Discussionmentioning

confidence: 99%

Anatomical and physiological responses of Aechmea blanchetiana (Bromeliaceae) induced by silicon and sodium chloride stress during in vitro culture

Cipriano

Martins

Conde

et al. 2023

PeerJ

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“…In addition, BRs and BZR1 positively regulate the photoprotection mechanism ( Fang et al, 2019 ). Besides, the application of EBR can alleviate the damage caused by drought and nutrient stresses ( dos Santos et al, 2020 , 2021a ; Barros Junior et al, 2021 ; Sousa et al, 2021 ). Thus, BRs increase the fitness of crops in response to a fluctuating environment, and BR signaling is a promising target of engineering and/or gene editing for sustainable production of greenhouse crops.…”

Section: Discussionmentioning

confidence: 99%

“…Enhancing the endogenous BR biosynthesis specifically in vegetative tissues enlarged the sugar pools in flag leaves and promoted grain filling and yield in rice ( Wu et al, 2008 ). Furthermore, exogenous EBR treatment enhances the plant fitness in response to the suboptimal light and temperature environments ( Shu et al, 2016 ) and nutrient stresses ( dos Santos et al, 2020 , 2021b ). Brassinosteroids can also increase the yields of monocot and dicot crops ( Vriet et al, 2012 ).…”

Section: Introductionmentioning

confidence: 99%

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

Tang

Xia

et al. 2022

Front. Plant Sci.

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Calvin cycle is a sequence of enzymatic reactions that assimilate atmospheric CO2 in photosynthesis. Multiple components are known to participate in the induction or suppression of the Calvin cycle but the mechanism of its regulation by phytohormones is still unclear. Brassinosteroids (BRs) are steroid phytohormones that promote photosynthesis and crop yields. In this study, we study the role of BRs in regulating Calvin cycle genes to further understand the regulation of the Calvin cycle by phytohormones in tomatoes. BRs and their signal effector BRASSINAZOLE RESISTANT 1 (BZR1) can enhance the Calvin cycle activity and improve the photosynthetic ability. BRs increased the accumulation of dephosphorylated form of BZR1 by 94% and induced an 88–126% increase in the transcription of key genes in Calvin cycle FBA1, RCA1, FBP5, and PGK1. BZR1 activated the transcription of these Calvin cycle genes by directly binding to their promoters. Moreover, silencing these Calvin cycle genes impaired 24-epibrassinolide (EBR)-induced enhancement of photosynthetic rate, the quantum efficiency of PSII, and Vc,max and Jmax. Taken together, these results strongly suggest that BRs regulate the Calvin cycle in a BZR1-dependent manner in tomatoes. BRs that mediate coordinated regulation of photosynthetic genes are potential targets for increasing crop yields.

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“…This promoted the protection of the plants' tissues against oxidative damages to the membrane under salt stress, thus alleviating the toxicity of salt and increasing the growth of the A. blanchetiana plants. These nutrients are structural components of the chlorophyll molecule and play a role in forming the amino acids necessary for the processes of the antioxidant defense system, acting as enzymatic cofactors, for example (Rahman et al 2016;Tewari et al 2019;Santos et al 2021). Besides this, the greater activity of the antioxidant system enzymes leads to lower degradation of chlorophyll (Gong et al 2018).…”

Section: Discussionmentioning

confidence: 99%

Anatomical and physiological responses Aechmea blanchetiana (Bromeliaceae) induced by silicon and sodium chloride during in vitro culture

Cipriano

Martins

Conde

et al. 2022

Preprint

View full text Add to dashboard Cite

Salt stress is one of the most severe abiotic stresses affecting plant growth and development. The application of silicon (Si) is an alternative that can increase the tolerance of plants to various types of biotic and abiotic stresses. The objective was to evaluate the effect of salt stress in vitro and the mitigation potential of Si on Aechmea blanchetiana plants. For this purpose, plants already established in vitro were transferred to a culture medium with 0 or 14 µM of Si (CaSiO3). After growth for 30 days, a stationary liquid medium containing different concentrations of NaCl (0, 100, 200, or 300 µM) was added to the flasks. Anatomical and physiological analyses were performed after growth for 45 days. The plants cultivated with excess NaCl presented reduced root diameter and effective photochemical quantum yield of photosystem II (PSII) (ΦPSII) and increased non-photochemical dissipation of fluorescence (qN). Plants that grew with the presence of Si also had greater content of photosynthetic pigments and activity of the enzymes of the antioxidant system, as well as higher values of maximum quantum yield of PSII (FV/FM), photochemical dissipation coefficient of fluorescence (qP) and fresh weight bioaccumulation of roots and shoots. The anatomical, physiological and biochemical responses, and growth induced by Si mitigated the effect to salt stress of the A. blanchetiana plants cultivated in vitro, which can be partly explained by the tolerance of this species to grow in sandbank (Restinga) areas.

show abstract

Brassinosteroids-Mediated Amelioration of Iron Deficiency in Soybean Plants: Beneficial Effects on the Nutritional Status, Photosynthetic Pigments and Chlorophyll Fluorescence

Cited by 13 publications

References 119 publications

Anatomical and physiological responses of Aechmea blanchetiana (Bromeliaceae) induced by silicon and sodium chloride stress during in vitro culture

Anatomical and physiological responses of Aechmea blanchetiana (Bromeliaceae) induced by silicon and sodium chloride stress during in vitro culture

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

Anatomical and physiological responses Aechmea blanchetiana (Bromeliaceae) induced by silicon and sodium chloride during in vitro culture

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