Versatile Roles of Aquaporins in Plant Growth and Development

Wang, Yan; Zhao, Zhigang; Liu, Fang; Sun, Lina; Hao, Fushun

doi:10.3390/ijms21249485

Cited by 69 publications

(71 citation statements)

References 198 publications

(322 reference statements)

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“…Aquaporins (AQPs) are membrane channels that facilitate the transport of water and small neutral molecules across biological membranes that belong to a highly conserved group of proteins called intrinsic proteins. AQPs play crucial roles in plant–water relations and cell turgor pressure maintenance and are required for growth and development and responses to multiple biotic and abiotic stresses [ 38 , 39 ]. By measuring levels of mRNA and protein accumulation and enzyme activity, it was possible to analyze the expression of components involved in turgor regulation: plasma membrane proton-translocating ATPase, vacuole-ATPase, proton-translocating pyrophosphatase (PPase), phosphoenolpyruvate carboxylase, and major intrinsic proteins.…”

Section: The Role Of Membrane Channels In Cotton Fiber Developmentmentioning

confidence: 99%

Advances about the Roles of Membranes in Cotton Fiber Development

Chen

Huang

et al. 2021

Membranes

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Cotton fiber is an extremely elongated single cell derived from the ovule epidermis and is an ideal model for studying cell development. The plasma membrane is tremendously expanded and accompanied by the coordination of various physiological and biochemical activities on the membrane, one of the three major systems of a eukaryotic cell. This review compiles the recent progress and advances for the roles of the membrane in cotton fiber development: the functions of membrane lipids, especially the fatty acids, sphingolipids, and phytosterols; membrane channels, including aquaporins, the ATP-binding cassette (ABC) transporters, vacuolar invertase, and plasmodesmata; and the regulation mechanism of membrane proteins, such as membrane binding enzymes, annexins, and receptor-like kinases.

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Section: The Role Of Membrane Channels In Cotton Fiber Developmentmentioning

confidence: 99%

Advances about the Roles of Membranes in Cotton Fiber Development

Chen

Huang

et al. 2021

Membranes

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“…PPZ treatment repressed 4 OsEXPA s and 1 OsXTH , but induced 3 OsEXPAs, 3 OsEXPBs and 1 OsXTH ( Figure 4 d,e). In addition, ECS and PPZ repressed expression of aquaporins, including plasma membrane intrinsic proteins (PIPs) and tonoplast intrinsic proteins (TIPs), which are important regulators of osmotic water transport, cell turgor pressure and cell elongation [ 21 ]. ECS significantly repressed eight OsPIPs and four OsTIPs , while PPZ repressed five OsPIPs and one OsTIP.…”

Section: Resultsmentioning

confidence: 99%

Supraoptimal Brassinosteroid Levels Inhibit Root Growth by Reducing Root Meristem and Cell Elongation in Rice

Jantapo

Wimonchaijit

Wang

et al. 2021

Plants

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Root growth depends on cell proliferation and cell elongation at the root meristem, which are controlled by plant hormones and nutrient availability. As a foraging strategy, rice (Oryza sativa L.) grows longer roots when nitrogen (N) is scarce. However, how the plant steroid hormone brassinosteroid (BR) regulates rice root meristem development and responses to N deficiency remains unclear. Here, we show that BR has a negative effect on meristem size and a dose-dependent effect on cell elongation in roots of rice seedlings treated with exogenous BR (24-epicastasterone, ECS) and the BR biosynthesis inhibitor propiconazole (PPZ). A genome-wide transcriptome analysis identified 4110 and 3076 differentially expressed genes in response to ECS and PPZ treatments, respectively. The gene ontology (GO) analysis shows that terms related to cell proliferation and cell elongation were enriched among the ECS-repressed genes. Furthermore, microscopic analysis of ECS- and PPZ-treated roots grown under N-sufficient and N-deficient conditions demonstrates that exogenous BR or PPZ application could not enhance N deficiency-mediated root elongation promotion as the treatments could not promote root meristem size and cell elongation simultaneously. Our study demonstrates that optimal levels of BR in the rice root meristem are crucial for optimal root growth and the foraging response to N deficiency.

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“…The role of aquaporin in physiological processes, stress tolerance and their regulation in plants has been extensively and recently reviewed [38][39][40][41][42][43][44][45][46]. The aim of this manuscript is to focus on the aquaporins only in cereal species, their diversity, expression pattern and roles under abiotic stress.…”

Section: Introductionmentioning

confidence: 99%

Aquaporins in Cereals—Important Players in Maintaining Cell Homeostasis under Abiotic Stress

Kurowska

2021

Genes

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Cereal productivity is reduced by environmental stresses such as drought, heat, elevated CO2, salinity, metal toxicity and cold. Sometimes, plants are exposed to multiple stresses simultaneously. Plants must be able to make a rapid and adequate response to these environmental stimuli in order to restore their growing ability. The latest research has shown that aquaporins are important players in maintaining cell homeostasis under abiotic stress. Aquaporins are membrane intrinsic proteins (MIP) that form pores in the cellular membranes, which facilitate the movement of water and many other molecules such as ammonia, urea, CO2, micronutrients (silicon and boron), glycerol and reactive oxygen species (hydrogen peroxide) across the cell and intercellular compartments. The present review primarily focuses on the diversity of aquaporins in cereal species, their cellular and subcellular localisation, their expression and their functioning under abiotic stresses. Lastly, this review discusses the potential use of mutants and plants that overexpress the aquaporin-encoding genes to improve their tolerance to abiotic stress.

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Versatile Roles of Aquaporins in Plant Growth and Development

Cited by 69 publications

References 198 publications

Advances about the Roles of Membranes in Cotton Fiber Development

Advances about the Roles of Membranes in Cotton Fiber Development

Supraoptimal Brassinosteroid Levels Inhibit Root Growth by Reducing Root Meristem and Cell Elongation in Rice

Aquaporins in Cereals—Important Players in Maintaining Cell Homeostasis under Abiotic Stress

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