Exogenously Applied Trehalose Augments Cadmium Stress Tolerance and Yield of Mung Bean (Vigna radiata L.) Grown in Soil and Hydroponic Systems through Reducing Cd Uptake and Enhancing Photosynthetic Efficiency and Antioxidant Defense Systems

Rehman, Sadia; Chattha, Muhammad Umer; Khan, Imran; Mahmood, Athar; Hassan, Muhammad Umair; Al-Huqail, Asma A.; Salem, Mohamed Z. M.; Ali, Hayssam M.; Hano, Christophe; El‐Esawi, Mohamed A.

doi:10.3390/plants11060822

Cited by 36 publications

(15 citation statements)

References 64 publications

(62 reference statements)

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“…Heavy metals (HMs) are a severe threat to global food production. Their concentration in agricultural soil is rapidly increasing due to anthropogenic activities ( Hassan et al, 2019 ; Chattha et al, 2021 ; Imran et al, 2021a ; Rehman et al, 2022 ). The role of MT to regulate plants grown under different HMs is well explored ( Hasan et al, 2015 ); nonetheless, MT-mediated growth regulation largely depends on MT application rate, heavy metal concentration, and plant species ( Table 5 ).…”

Section: Melatonin Induces Heavy Metals Stress Tolerance In Plantsmentioning

confidence: 99%

Melatonin-Induced Protection Against Plant Abiotic Stress: Mechanisms and Prospects

et al. 2022

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Global warming in this century increases incidences of various abiotic stresses restricting plant growth and productivity and posing a severe threat to global food production and security. The plant produces different osmolytes and hormones to combat the harmful effects of these abiotic stresses. Melatonin (MT) is a plant hormone that possesses excellent properties to improve plant performance under different abiotic stresses. It is associated with improved physiological and molecular processes linked with seed germination, growth and development, photosynthesis, carbon fixation, and plant defence against other abiotic stresses. In parallel, MT also increased the accumulation of multiple osmolytes, sugars and endogenous hormones (auxin, gibberellic acid, and cytokinins) to mediate resistance to stress. Stress condition in plants often produces reactive oxygen species. MT has excellent antioxidant properties and substantially scavenges reactive oxygen species by increasing the activity of enzymatic and non-enzymatic antioxidants under stress conditions. Moreover, the upregulation of stress-responsive and antioxidant enzyme genes makes it an excellent stress-inducing molecule. However, MT produced in plants is not sufficient to induce stress tolerance. Therefore, the development of transgenic plants with improved MT biosynthesis could be a promising approach to enhancing stress tolerance. This review, therefore, focuses on the possible role of MT in the induction of various abiotic stresses in plants. We further discussed MT biosynthesis and the critical role of MT as a potential antioxidant for improving abiotic stress tolerance. In addition, we also addressed MT biosynthesis and shed light on future research directions. Therefore, this review would help readers learn more about MT in a changing environment and provide new suggestions on how this knowledge could be used to develop stress tolerance.

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Section: Melatonin Induces Heavy Metals Stress Tolerance In Plantsmentioning

confidence: 99%

Melatonin-Induced Protection Against Plant Abiotic Stress: Mechanisms and Prospects

et al. 2022

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“…The heavy metal cadmium (Cd) is toxic to most organisms, including plants and humans (Ding et al, 2018). Cd is easily absorbed by plant roots, causing severe structural and functional changes, inhibiting seed germination and root growth, and Cd stress also increases ROS production (Farid et al, 2013;Ali et al, 2014;Rehman et al, 2022). HD-ZIP genes and their upstream microRNAs (miRNAs) are involved in Cd accumulation and tolerance.…”

Section: Hd-zip Proteins In Regulating Harmful Metal Stressmentioning

confidence: 99%

The roles of HD-ZIP proteins in plant abiotic stress tolerance

Yang

Zhang

et al. 2022

Front. Plant Sci.

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Homeodomain leucine zipper (HD-ZIP) proteins are plant-specific transcription factors that contain a homeodomain (HD) and a leucine zipper (LZ) domain. The highly conserved HD binds specifically to DNA and the LZ mediates homodimer or heterodimer formation. HD-ZIP transcription factors control plant growth, development, and responses to abiotic stress by regulating downstream target genes and hormone regulatory pathways. HD-ZIP proteins are divided into four subclasses (I–IV) according to their sequence conservation and function. The genome-wide identification and expression profile analysis of HD-ZIP proteins in model plants such as Arabidopsis (Arabidopsis thaliana) and rice (Oryza sativa) have improved our understanding of the functions of the different subclasses. In this review, we mainly summarize and discuss the roles of HD-ZIP proteins in plant response to abiotic stresses such as drought, salinity, low temperature, and harmful metals. HD-ZIP proteins mainly mediate plant stress tolerance by regulating the expression of downstream stress-related genes through abscisic acid (ABA) mediated signaling pathways, and also by regulating plant growth and development. This review provides a basis for understanding the roles of HD-ZIP proteins and potential targets for breeding abiotic stress tolerance in plants.

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“…Drought stress also reduces photosynthesis by reducing cell turgor and plants’ access to CO 2 owing to the closure of stomata ( Jaleel et al, 2007 ). One of the major detriments of DS is the production of reactive oxygen species (ROS) that damage the structural integrity of membranes, proteins, and DNA ( Ahanger and Agarwal, 2017 ; Sultan et al, 2021 ; Qari et al, 2022 ; Rehman et al, 2022 ). However, plants have developed different mechanisms to reduce the harmful effects of ROS to protect the stability of cellular structures and improve the yield under DS ( Ahanger and Ahmad, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

The Critical Role of Arbuscular Mycorrhizal Fungi to Improve Drought Tolerance and Nitrogen Use Efficiency in Crops

Tang

Hassan

et al. 2022

Front. Plant Sci.

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Drought stress (DS) is a serious abiotic stress and a major concern across the globe as its intensity is continuously climbing. Therefore, it is direly needed to develop new management strategies to mitigate the adverse effects of DS to ensure better crop productivity and food security. The use of arbuscular mycorrhizal fungi (AMF) has emerged as an important approach in recent years to improve crop productivity under DS conditions. AMF establishes a relationship with 80% of land plants and it induces pronounced impacts on plant growth and provides protection to plants from abiotic stress. Drought stress significantly reduces plant growth and development by inducing oxidative stress, disturbing membrane integrity, plant water relations, nutrient uptake, photosynthetic activity, photosynthetic apparatus, and anti-oxidant activities. However, AMF can significantly improve the plant tolerance against DS. AMF maintains membrane integrity, improves plant water contents, nutrient and water uptake, and water use efficiency (WUE) therefore, improve the plant growth under DS. Moreover, AMF also protects the photosynthetic apparatus from drought-induced oxidative stress and improves photosynthetic efficiency, osmolytes, phenols and hormone accumulation, and reduces the accumulation of reactive oxygen species (ROS) by increasing anti-oxidant activities and gene expression which provide the tolerance to plants against DS. Therefore, it is imperative to understand the role of AMF in plants grown under DS. This review presented the different functions of AMF in different responses of plants under DS. We have provided a detailed picture of the different mechanisms mediated by AMF to induce drought tolerance in plants. Moreover, we also identified the potential research gaps that must be fulfilled for a promising future for AMF. Lastly, nitrogen (N) is an important nutrient needed for plant growth and development, however, the efficiency of applied N fertilizers is quite low. Therefore, we also present the information on how AMF improves N uptake and nitrogen use efficiency (NUE) in plants.

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Exogenously Applied Trehalose Augments Cadmium Stress Tolerance and Yield of Mung Bean (Vigna radiata L.) Grown in Soil and Hydroponic Systems through Reducing Cd Uptake and Enhancing Photosynthetic Efficiency and Antioxidant Defense Systems

Cited by 36 publications

References 64 publications

Melatonin-Induced Protection Against Plant Abiotic Stress: Mechanisms and Prospects

Melatonin-Induced Protection Against Plant Abiotic Stress: Mechanisms and Prospects

The roles of HD-ZIP proteins in plant abiotic stress tolerance

The Critical Role of Arbuscular Mycorrhizal Fungi to Improve Drought Tolerance and Nitrogen Use Efficiency in Crops

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