Water Deficit Stress Effects and Responses in Maize

Jain, Meeta; Kataria, Sunita; Hirve, Mamta; Prajapati, Rajkumar

doi:10.1007/978-3-030-06118-0_5

Cited by 32 publications

(29 citation statements)

References 110 publications

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“…The reduction in leaf area, shoot length and stem diameter under drought stress was observed in this study (Figure 1). Our finding, similar with those of Jain et al (2019), demonstrated that drought affects leaf size, stems extension and decreases water use efficiency. Drought-induced reduction in growth or photosynthetic rate was mostly attributed to a decreased intercellular CO2 concentration due to stomatal closure (Biswas et al, 2019).…”

Section: Discussionsupporting

confidence: 91%

Foliar application of 5-aminolevulinic acid alleviated high temperature and drought stresses on wheat plants at seedling stage

Suliman

Elradi

Nimir

et al. 2021

Chil. j. agric. res.

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Wheat (Triticum aestivum L.) seedling establishment is very sensitive to temperature and drought stresses. The present study was conducted to investigate the effects of foliar exogenous 5-aminolevulinic acid (5-ALA) application on wheat seedling under different temperature (25, 30, and 35 ℃) and water regimes (normal and 65% watering). Five different levels of 5-ALA (0, 25, 50, 100 and 150 mg L -1 ) were applied as foliar application. Leaf area, stem diameter, shoot and root lengths, fresh and dry weights of shoot and root, and physiological parameters were measured. Drought stress (W2) decreased leaf area by 14.9% compared with normal watering (W1). High temperature (35 ℃) increased malondialdehyde (MDA) content by 72.1% compared with control (25 ℃). 35 ℃ with W2 reduced root and shoot dry weights by 71.8% and 51.9% relative to 25 ℃ and W1. At 35 ℃, 25 mg L -1 5-ALA increased root length by 17.1% and 3.4% at W1 and W2, respectively. 150 mg L -1 5-ALA increased root fresh weight by 101.0% compared with 0 mg L -1 5-ALA at W1 and 35 ℃. The highest protein content (8.35 mg g -1 FW) was achieved at the interaction between W2, 35 ℃ and 50 mg L -1 5-ALA. At W2 and 35 ℃, 150 mg L -1 5-ALA increased proline content by 66.5% relative to 0 mg L -1 . The results of the present study suggest that foliar application of 5-ALA could be useful to alleviate the temperature and/or drought stresses of wheat seedling.

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Section: Discussionsupporting

confidence: 91%

Foliar application of 5-aminolevulinic acid alleviated high temperature and drought stresses on wheat plants at seedling stage

Suliman

Elradi

Nimir

et al. 2021

Chil. j. agric. res.

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“…Oxidative stress is often thought of as a secondary stress of drought stress. The damage to biological macromolecules caused by reactive oxygen species (ROS) under drought stress are among the key limitations to plant growth [5]. Inadequate availability of soil water diminishes maize metabolic activity, reduces biomass, and lowers photosynthetic rate by decreasing the leaf chlorophyll content, ultimately leading to decreased maize yield [6,7].…”

Section: Introductionmentioning

confidence: 99%

Combined seed and foliar pre-treatments with exogenous methyl jasmonate and salicylic acid mitigate drought-induced stress in maize

et al. 2020

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Susceptibility of plants to abiotic stresses, including extreme temperatures, salinity and drought, poses an increasing threat to crop productivity worldwide. Here the droughtinduced response of maize was modulated by applications of methyl jasmonate (MeJA) and salicylic acid (SA) to seeds prior to sowing and to leaves prior to stress treatment. Pot experiments were conducted to ascertain the effects of exogenous applications of these hormones on maize growth, physiology and biochemistry under drought stress and wellwatered (control) conditions. Maize plants were subjected to single as well as combined pre-treatments of MeJA and SA. Drought stress severely affected maize morphology and reduced relative water content, above and below-ground biomass, rates of photosynthesis, and protein content. The prolonged water deficit also led to increased relative membrane permeability and oxidative stress induced by the production of malondialdehyde (from lipid peroxidation), lipoxygenase activity (LOX) and the production of H 2 O 2 . The single applications of MeJA and SA were not found to be effective in maize for drought tolerance while the combined pre-treatments with exogenous MeJA+SA mitigated the adverse effects of drought-induced oxidative stress, as reflected in lower levels of lipid peroxidation, LOX activity and H 2 O 2 . The same pre-treatment also maintained adequate water status of the plants under drought stress by increasing osmolytes including proline, total carbohydrate content and total soluble sugars. Furthermore, exogenous applications of MeJA+SA approximately doubled the activities of the antioxidant enzymes catalase, peroxidase and superoxide dismutase. Pre-treatment with MeJA alone gave the highest increase in drought-induced production of endogenous abscisic acid (ABA). Pre-treatment with MeJA+SA partially prevented drought-induced oxidative stress by modulating levels of osmolytes and endogenous ABA, as well as the activities of antioxidant enzymes. Taken together, the results show that seed and foliar pre-treatments with exogenous MeJA and/or SA can have positive effects on the responses of maize seedlings to drought.

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“…•− ], hydrogen peroxide [H 2 O 2 ], and hydroxyl radical [ • OH]). The ROS-induced damage to biomolecules is one of the major factors that limit plant growth under drought stress [11]. Increased ROS accumulation severely damages cell membrane integrity by accelerating lipid peroxidation [12,13], protein degradation, and nucleic acid damage [14].…”

Section: Introductionmentioning

confidence: 99%

Exogenous Application of Methyl Jasmonate and Salicylic Acid Mitigates Drought-Induced Oxidative Damages in French Bean (Phaseolus vulgaris L.)

Mohi-Ud-Din

Talukder

Rohman

et al. 2021

Plants

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Drought stress impairs the normal growth and development of plants through various mechanisms including the induction of cellular oxidative stresses. The aim of this study was to evaluate the effect of the exogenous application of methyl jasmonate (MeJA) and salicylic acid (SA) on the growth, physiology, and antioxidant defense system of drought-stressed French bean plants. Application of MeJA (20 μM) or SA (2 mM) alone caused modest reductions in the harmful effects of drought. However, combined application substantially enhanced drought tolerance by improving the physiological activities and antioxidant defense system. The drought-induced generation of O2●− and H2O2, the MDA content, and the LOX activity were significantly lower in leaves when seeds or leaves were pre-treated with a combination of MeJA (10 μM) and SA (1 mM) than with either hormone alone. The combined application of MeJA and SA to drought-stressed plants also significantly increased the activities of the major antioxidant enzymes superoxide dismutase, catalase, peroxidase, glutathione peroxidase, and glutathione-S-transferase as well as the enzymes of the ascorbate–glutathione cycle. Taken together, our results suggest that seed or foliar application of a combination of MeJA and SA restore growth and normal physiological processes by triggering the antioxidant defense system in drought-stressed plants.

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Water Deficit Stress Effects and Responses in Maize

Cited by 32 publications

References 110 publications

Foliar application of 5-aminolevulinic acid alleviated high temperature and drought stresses on wheat plants at seedling stage

Foliar application of 5-aminolevulinic acid alleviated high temperature and drought stresses on wheat plants at seedling stage

Combined seed and foliar pre-treatments with exogenous methyl jasmonate and salicylic acid mitigate drought-induced stress in maize

Exogenous Application of Methyl Jasmonate and Salicylic Acid Mitigates Drought-Induced Oxidative Damages in French Bean (Phaseolus vulgaris L.)

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