Physiological, Biochemical, and Gene Expression Responses of Sugarcane Under Cold, Drought and Salt Stresses

Kaura, V.; Malhotra, Pawan Kumar; Mittal, Amandeep; Sanghera, Gulzar S.; Kaur, Narinder; Bhardwaj, Ruchika; Cheema, R. S.; Kaur, Gagandeep

doi:10.1007/s00344-022-10850-8

Cited by 5 publications

(4 citation statements)

References 55 publications

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“…The most intuitive manifestation of the effects of salt and drought stress on plants is that growth and development are significantly inhibited [16]. The results of this study showed that drought, salt, and salt-drought combined stress had a significant inhibitory effect on the growth of C. esculentus seedlings and root growth and reduced the biomass accumulation of C. esculentus seedlings, and the combined stress led to a higher inhibition of the growth of C. esculentus than the single stresses of salt and drought.…”

Section: Discussionmentioning

confidence: 99%

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Mitigating Effect of Exogenous Melatonin on Salt and Drought Stress in Cyperus esculentus L. during the Tillering Stage

Wang,

Luo,

Wang

et al. 2024

Agronomy

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Drought and salt stress are important limiting factors that affect crop growth and yield. As a newly recognized plant hormone, melatonin can participate in the regulation of plant stress tolerance and enhance the tolerance of plants to adversity. In this study, the effects of melatonin (150 µmol·L−1) on agronomic traits, osmotic adjustment substances, antioxidant enzyme activities, and reactive oxygen species content in C. esculentus under different salt (0 and 200 mmol·L−1 NaCl), drought (70% field capacity, 50% field capacity), and salt–drought (200 mmol·L−1 NaCl + 50% field capacity) stress conditions were determined using a pot experiment. Spraying with 150 µmol·L−1 of melatonin effectively improved the plant height, number of blades, biomass, and root growth of C. esculentus seedlings under salt, drought, and combined stress. In addition, this treatment also increased the relative water content, superoxide dismutase, peroxidase, and catalase activities, and soluble sugar content of the blades and decreased the relative electroconductivity conductivity and proline, malondialdehyde, hydrogen peroxide, and superoxide anion contents. A comprehensive analysis showed that spraying the plants with exogenous melatonin could increase the activity of antioxidant enzymes and the accumulation of osmotic adjustment substances in C. esculentus blades under salt and drought stress, effectively remove excessive reactive oxygen species, alleviate oxidative damage, and enhance the ability of C. esculentus to resist salt and drought stress.

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Section: Discussionmentioning

confidence: 99%

“…To resist reactive oxygen species, plants begin to produce antioxidants. As a response, plant enzymes (such as superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT)) and non-enzymatic defense mechanisms (such as osmotic regulators) are activated [16].…”

Section: Introductionmentioning

confidence: 99%

Mitigating Effect of Exogenous Melatonin on Salt and Drought Stress in Cyperus esculentus L. during the Tillering Stage

Wang,

Luo,

Wang

et al. 2024

Agronomy

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“…This is because low temperature hinders many major components of photosynthesis ( Dahal et al., 2012 ). Chlorophyll content decreases under cold stress, leading to chlorosis in leaves ( Kaura et al., 2022 ). The chlorophyll content of leaves provides important information about the effectiveness of physiological processes in plants in plants ( Gitelson et al., 2003 ).…”

Section: Role Of Melatonin In Plants Under Abiotic Stressmentioning

confidence: 99%

The role of melatonin in plant growth and metabolism, and its interplay with nitric oxide and auxin in plants under different types of abiotic stress

Ahmad

Song²,

Ibrahim³

et al. 2023

Front. Plant Sci.

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Melatonin is a pleiotropic signaling molecule that reduces the adverse effects of abiotic stresses, and enhances the growth and physiological function of many plant species. Several recent studies have demonstrated the pivotal role of melatonin in plant functions, specifically its regulation of crop growth and yield. However, a comprehensive understanding of melatonin, which regulates crop growth and yield under abiotic stress conditions, is not yet available. This review focuses on the progress of research on the biosynthesis, distribution, and metabolism of melatonin, and its multiple complex functions in plants and its role in the mechanisms of metabolism regulation in plants grown under abiotic stresses. In this review, we focused on the pivotal role of melatonin in the enhancement of plant growth and regulation of crop yield, and elucidated its interactions with nitric oxide (NO) and auxin (IAA, indole-3-acetic acid) when plants are grown under various abiotic stresses. The present review revealed that the endogenousapplication of melatonin to plants, and its interactions with NO and IAA, enhanced plant growth and yield under various abiotic stresses. The interaction of melatonin with NO regulated plant morphophysiological and biochemical activities, mediated by the G protein-coupled receptor and synthesis genes. The interaction of melatonin with IAA enhanced plant growth and physiological function by increasing the levels of IAA, synthesis, and polar transport. Our aim was to provide a comprehensive review of the performance of melatonin under various abiotic stresses, and, therefore, further explicate the mechanisms that plant hormones use to regulate plant growth and yield under abiotic stresses.

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“…Tomato is abundant in minerals and antioxidants, including vitamin C, lycopene, and phenols [ 3 ]. Drought and salinity are the principal abiotic stresses that significantly restrict crop growth and yield on a global scale [ 4 ]. Bahawalpur is renowned for its arid climate, making it one of the most parched regions in Pakistan.…”

Section: Introductionmentioning

confidence: 99%

The impact of biochar addition on morpho-physiological characteristics, yield and water use efficiency of tomato plants under drought and salinity stress

Murtaza,

Usman,

Iqbal

et al. 2024

BMC Plant Biol

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The use of saline water under drought conditions is critical for sustainable agricultural development in arid regions. Biochar is used as a soil amendment to enhance soil properties such as water-holding capacity and the source of nutrition elements of plants. Thus, the research was carried out to assess the impact of biochar treatment on the morphological and physiological characteristics and production of Solanum lycopersicum in greenhouses exposed to drought and saline stresses. The study was structured as a three-factorial in split-split-plot design. There were 16 treatments across three variables: (i) water quality, with freshwater and saline water, with electrical conductivities of 0.9 and 2.4 dS m− 1, respectively; (ii) irrigation level, with 40%, 60%, 80%, and 100% of total evapotranspiration (ETC); (iii) and biochar application, with the addition of biochar at a 3% dosage by (w/w) (BC3%), and a control (BC0%). The findings demonstrated that salt and water deficiency hurt physiological, morphological, and yield characteristics. Conversely, the biochar addition enhanced all characteristics. Growth-related parameters, such as plant height, stem diameter, leaf area, and dry and wet weight, and leaf gas exchange attributes, such rate of transpiration and photosynthesis, conductivity, as well as leaf relative water content were decreased by drought and salt stresses, especially when the irrigation was 60% ETc or 40% ETc. The biochar addition resulted in a substantial enhancement in vegetative growth-related parameters, physiological characteristics, efficiency of water use, yield, as well as reduced proline levels. Tomato yield enhanced by 4%, 16%, 8%, and 3% when irrigation with freshwater at different levels of water deficit (100% ETc, 80% ETc, 60% ETc, and 40% ETc) than control (BC0%). Overall, the use of biochar (3%) combined with freshwater shows the potential to enhance morpho-physiological characteristics, support the development of tomato plants, and improve yield with higher WUE in semi-arid and arid areas.

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Physiological, Biochemical, and Gene Expression Responses of Sugarcane Under Cold, Drought and Salt Stresses

Cited by 5 publications

References 55 publications

Mitigating Effect of Exogenous Melatonin on Salt and Drought Stress in Cyperus esculentus L. during the Tillering Stage

Mitigating Effect of Exogenous Melatonin on Salt and Drought Stress in Cyperus esculentus L. during the Tillering Stage

The role of melatonin in plant growth and metabolism, and its interplay with nitric oxide and auxin in plants under different types of abiotic stress

The impact of biochar addition on morpho-physiological characteristics, yield and water use efficiency of tomato plants under drought and salinity stress

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