Dynamic role of aquaporin transport system under drought stress in plants

Shivaraj, S. M.; Sharma, Yogesh; Chaudhary, Juhi; Rajora, Nitika; Sharma, Shivani; Thakral, Vandana; Ram, Hasthi; Sonah, Humira; Singla‐Pareek, Sneh L.; Sharma, T. R.; Deshmukh, Rupesh

doi:10.1016/j.envexpbot.2020.104367

Cited by 28 publications

(11 citation statements)

References 209 publications

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“…Multiple sequence alignment, coupled with atomic resolution and molecular dynamic simulations, reported residue compositions at key positions in the protein known to regulate AQP function, including dual NPA motifs, ar/R filter, FPs, and predictive SDPs. All these specific pore-lining residues contribute to determining which substrates would permeate through the AQP pore [ 71 ].…”

Section: Resultsmentioning

confidence: 99%

Genome-Wide Identification, Structure Characterization, and Expression Pattern Profiling of the Aquaporin Gene Family in Betula pendula

Venisse

Õunapuu-Pikas

Dupont

et al. 2021

IJMS

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Aquaporin water channels (AQPs) constitute a large family of transmembrane proteins present throughout all kingdoms of life. They play key roles in the flux of water and many solutes across the membranes. The AQP diversity, protein features, and biological functions of silver birch are still unknown. A genome analysis of Betula pendula identified 33 putative genes encoding full-length AQP sequences (BpeAQPs). They are grouped into five subfamilies, representing ten plasma membrane intrinsic proteins (PIPs), eight tonoplast intrinsic proteins (TIPs), eight NOD26-like intrinsic proteins (NIPs), four X intrinsic proteins (XIPs), and three small basic intrinsic proteins (SIPs). The BpeAQP gene structure is conserved within each subfamily, with exon numbers ranging from one to five. The predictions of the aromatic/arginine selectivity filter (ar/R), Froger’s positions, specificity-determining positions, and 2D and 3D biochemical properties indicate noticeable transport specificities to various non-aqueous substrates between members and/or subfamilies. Nevertheless, overall, the BpePIPs display mostly hydrophilic ar/R selective filter and lining-pore residues, whereas the BpeTIP, BpeNIP, BpeSIP, and BpeXIP subfamilies mostly contain hydrophobic permeation signatures. Transcriptional expression analyses indicate that 23 BpeAQP genes are transcribed, including five organ-related expressions. Surprisingly, no significant transcriptional expression is monitored in leaves in response to cold stress (6 °C), although interesting trends can be distinguished and will be discussed, notably in relation to the plasticity of this pioneer species, B. pendula. The current study presents the first detailed genome-wide analysis of the AQP gene family in a Betulaceae species, and our results lay a foundation for a better understanding of the specific functions of the BpeAQP genes in the responses of the silver birch trees to cold stress.

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Section: Resultsmentioning

confidence: 99%

Genome-Wide Identification, Structure Characterization, and Expression Pattern Profiling of the Aquaporin Gene Family in Betula pendula

Venisse

Õunapuu-Pikas

Dupont

et al. 2021

IJMS

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“…In times of dryness, the movement of water within and across the cells is determined by the controlled activity and abundance of the AQPs (Shekoofa & Sinclair 2018;Kurowska et al 2019). An aquaporin gene expression study has been performed on crops under drought stress (Shivaraj et al 2021).…”

Section: Reviewmentioning

confidence: 99%

Endophytic and rhizobacteria functionalities in alleviating drought stress in maize plants

Agunbiade¹,

Babalola²

2023

Plant Prot. Sci.

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Drought stress is among the significant forms of abiotic stresses that unfavourably affects maize survival as well as the development from germination to maturity. This paper, therefore, reviewed drought stress effects in maize plants and expatiated on the plausible adoptable mitigation measures to employ in curbing these effects as well. Water shortage prompts drought stress that alters the morphological, physiological and biochemical activities in maize plants.The major drought stress implications on the plant's survival are mostly in the area of altered metabolic functions, including nutrient metabolism, cell membrane integrity, water relationships, plant yield, photosynthetic processes, osmotic adjustment, and the pigment content. Mitigating strategies, such as the breeding of drought-tolerant varieties, genomic applications for drought tolerance enhancement in maize plants, as well as the use of rhizobacteria and endophytic bacteria, can be employed in alleviating drought stress and ensuring optimal maize productivity.

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“…The Casparian strip helped prevent the water backflow from the root to the soil ( Yildirim et al., 2018 ). Aquaporins, are water channels encoded by plasma membrane intrinsic proteins ( PIPs ) and tonoplast intrinsic proteins ( TIPs ) genes, and their expression pattern varied with the extent of drought stress and plant species ( Gautam and Pandey, 2021 ; Shivaraj et al., 2021 ). The PIP genes were differentially expressed in the grafted plants of two plum rootstocks (R20 and R40), but it was difficult to explain their drought-induced expression patterns and their effects ( Opazo et al., 2020 ).…”

Section: Rootstock Changesmentioning

confidence: 99%

Grafting enhances plants drought resistance: Current understanding, mechanisms, and future perspectives

Yang

Xia²,

Zeng³

et al. 2022

Front. Plant Sci.

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Drought, one of the most severe and complex abiotic stresses, is increasingly occurring due to global climate change and adversely affects plant growth and yield. Grafting is a proven and effective tool to enhance plant drought resistance ability by regulating their physiological and molecular processes. In this review, we have summarized the current understanding, mechanisms, and perspectives of the drought stress resistance of grafted plants. Plants resist drought through adaptive changes in their root, stem, and leaf morphology and structure, stomatal closure modulation to reduce transpiration, activating osmoregulation, enhancing antioxidant systems, and regulating phytohormones and gene expression changes. Additionally, the mRNAs, miRNAs and peptides crossing the grafted healing sites also confer drought resistance. However, the interaction between phytohormones, establishment of the scion-rootstock communication through genetic materials to enhance drought resistance is becoming a hot research topic. Therefore, our review provides not only physiological evidences for selecting drought-resistant rootstocks or scions, but also a clear understanding of the potential molecular effects to enhance drought resistance using grafted plants.

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Dynamic role of aquaporin transport system under drought stress in plants

Cited by 28 publications

References 209 publications

Genome-Wide Identification, Structure Characterization, and Expression Pattern Profiling of the Aquaporin Gene Family in Betula pendula

Genome-Wide Identification, Structure Characterization, and Expression Pattern Profiling of the Aquaporin Gene Family in Betula pendula

Endophytic and rhizobacteria functionalities in alleviating drought stress in maize plants

Grafting enhances plants drought resistance: Current understanding, mechanisms, and future perspectives

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