Phytohormone signalling and cross-talk to alleviate aluminium toxicity in plants

Ranjan, Alok; Sinha, Ragini; Lal, Shambhu Krishan; Bishi, S. K.; Singh, Anil Kumar

doi:10.1007/s00299-021-02724-2

Cited by 36 publications

(15 citation statements)

References 137 publications

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“…Moreover, the transcript accumulation of several auxin-induced genes, as well as the activation of the synthetic auxin-responsive promoter DR5, are inhibited by OGs (Savatin et al, 2011 ). Metabolism and polar distribution of auxin have been reported to be involved in root growth inhibition due to Al toxicity through auxin transporters and auxin response factors (Ranjan et al, 2021 ). If OGs have antagonistic effects on auxin responses, they might also regulate the expression of auxin response genes, which is modulated by the Al treatment.…”

Section: Discussionmentioning

confidence: 99%

A Berberine Bridge Enzyme-Like Protein, GmBBE-like43, Confers Soybean's Coordinated Adaptation to Aluminum Toxicity and Phosphorus Deficiency

Chen

Liu

et al. 2022

Front. Plant Sci.

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Phosphorus (P) deficiency and aluminum (Al) toxicity often coexist and are two major limiting factors for crop production in acid soils. The purpose of this study was to characterize the function of GmBBE-like43, a berberine bridge enzyme-like protein-encoding gene, in soybean (Glycine max) adaptation to Al and low P stresses. Present quantitative real-time PCR (qRT-PCR) assays confirmed the phosphate (Pi)-starvation enhanced and Al-stress up-regulated expression pattern of GmBBE-like43 in soybean roots. Meanwhile, the expression of a GmBBE-like43-GFP chimera in both common bean hairy roots and tobacco leaves demonstrated its cell wall localization. Moreover, both transgenic Arabidopsis and soybean hairy roots revealed the function of GmBBE-like43 in promoting root growth under both Al and low P stresses. GmBBE-like43-overexpression also resulted in more H2O2 production on transgenic soybean hairy root surface with oligogalacturonides (OGs) application and antagonized the effects of Al on the expression of two SAUR-like genes. Taken together, our results suggest that GmBBE-like43 might be involved in the soybean's coordinated adaptation to Al toxicity and Pi starvation through modulation of OGs-oxidation in the cell wall.

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Section: Discussionmentioning

confidence: 99%

A Berberine Bridge Enzyme-Like Protein, GmBBE-like43, Confers Soybean's Coordinated Adaptation to Aluminum Toxicity and Phosphorus Deficiency

Chen

Liu

et al. 2022

Front. Plant Sci.

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“…Phytohormone homeostasis, signaling and their crosstalk have a decisive role in root formation and development under normal as well as under abiotic stress conditions (Ranjan et al, 2021a; Verma et al, 2016). The key biochemical and molecular elements of the phytohormonal pathways include various phytohormones, their receptors, signaling components, and transcription factors (Figure 1).…”

Section: Phytohormonal Regulation Of Rsa Under Drought Stressmentioning

confidence: 99%

Shaping the root system architecture in plants for adaptation to drought stress

Ranjan

Sinha

Singla‐Pareek

et al. 2022

Physiologia Plantarum

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Root system architecture plays an important role in plant adaptation to drought stress. The root system architecture (RSA) consists of several structural features, which includes number and length of main and lateral roots along with the density and length of root hairs. These features exhibit plasticity under water‐limited environments and could be critical to developing crops with efficient root systems for adaptation under drought. Recent advances in the omics approaches have significantly improved our understanding of the regulatory mechanisms of RSA remodeling under drought and the identification of genes and other regulatory elements. Plant response to drought stress at physiological, morphological, biochemical, and molecular levels in root cells is regulated by various phytohormones and their crosstalk. Stress‐induced reactive oxygen species play a significant role in regulating root growth and development under drought stress. Several transcription factors responsible for the regulation of RSA under drought have proven to be beneficial for developing drought tolerant crops. Molecular breeding programs for developing drought‐tolerant crops have been greatly benefitted by the availability of quantitative trait loci (QTLs) associated with the RSA regulation. In the present review, we have discussed the role of various QTLs, signaling components, transcription factors, microRNAs and crosstalk among various phytohormones in shaping RSA and present future research directions to better understand various factors involved in RSA remodeling for adaptation to drought stress. We believe that the information provided herein may be helpful in devising strategies to develop crops with better RSA for efficient uptake and utilization of water and nutrients under drought conditions.

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“…Drought stresses significantly alter root system architecture, resulting in the generation of lateral roots and root hairs (Koevoets et al 2016). It has been shown that phytohormone homeostasis plays a critical role during root initiation and development under normal conditions as well as under abiotic stress conditions (Ranjan et al 2021). Among the phytohormones that regulate root system architecture under stress, conditions are ABA, auxins, cytokinins, ethylene, and jasmonic acid.…”

Section: Molecular Responsementioning

confidence: 99%

Alleviation of drought and salt stress in vegetables: crop responses and mitigation strategies

Khalid

Huda²,

Yong³

et al. 2022

Plant Growth Regul

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In recent decades, the demand for vegetables has increased significantly due to the blooming global population. Climate change has affected vegetable production by increasing the frequencies and severity of abiotic and biotic stresses. Among the abiotic stresses, drought and salinity are the major issues that possess severe threats on vegetable production. Many vegetables (e.g., carrot, tomato, okra, pea, eggplant, lettuce, potato) are usually sensitive to drought and salt stress. The defence mechanisms of plants against salt and drought stress have been extensively studied in model plant species and field crops. Better understanding of the mechanisms of susceptibility of vegetables to drought and salt stresses will help towards the development of more tolerant genotypes as a long-term strategy against these stresses. However, the intensity of the challenges also warrants more immediate approaches to mitigate these stresses and enhance vegetable production in the short term. Therefore, this review enlightens the updated knowledge of responses (physiological and molecular) against drought and salinity in vegetables and potentially effective strategies to enhance production. Moreover, we summarized different technologies such as seed priming, genetic transformation, biostimulants, nanotechnology, and cultural practices adopted to enhance vegetable production under drought and salinity stress. We propose that approaches of conventional breeding, genetic engineering, and crop management should be combined to generate drought and salt resistance cultivars and adopt smart cultivation practices for sustainable vegetable production in a changing climate.

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Phytohormone signalling and cross-talk to alleviate aluminium toxicity in plants

Cited by 36 publications

References 137 publications

A Berberine Bridge Enzyme-Like Protein, GmBBE-like43, Confers Soybean's Coordinated Adaptation to Aluminum Toxicity and Phosphorus Deficiency

A Berberine Bridge Enzyme-Like Protein, GmBBE-like43, Confers Soybean's Coordinated Adaptation to Aluminum Toxicity and Phosphorus Deficiency

Shaping the root system architecture in plants for adaptation to drought stress

Alleviation of drought and salt stress in vegetables: crop responses and mitigation strategies

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