Seed priming by sodium nitroprusside improves salt tolerance in wheat ( Triticum aestivum L.) by enhancing physiological and biochemical parameters

Ali, Shafaqat; Daud, Muhammad; Haider, Muhammad Zulqurnain; Ali, Shafaqat; Rizwan, Muhammad; Aslam, Nosheen; Noman, Ali; Iqbal, Naeem; Shahzad, Faisal; Deeba, Farah; Ali, Iftikhar; Zhu, Shuhua

doi:10.1016/j.plaphy.2017.08.010

Cited by 162 publications

(95 citation statements)

References 41 publications

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“…It is generally accepted that CAT removes overproduced H 2 O 2 during oxidative stress (Ahmad et al ). Enhanced SOD, CAT and POD activities under salt stress have also been reported in beans (Farhangi‐Abriz and Torabian ) wheat (Ali et al ) and acacia (Abd Allah et al ). Meanwhile, low pH also increased the activities of SOD, CAT and POD, which reduced the oxidative damage caused by salt toxicity.…”

Section: Discussionmentioning

confidence: 73%

Low pH altered salt stress in antioxidant metabolism and nitrogen assimilation in ginger (Zingiber officinale) seedlings

Yin

Liu

Cao

et al. 2019

Physiologia Plantarum

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The effects of low pH on antioxidant metabolism and nitrogen (N) assimilation in ginger seedlings under salt stress were investigated. A two‐way randomized block design was used: the main treatment consisted of two pH levels, normal and low pH (6.0 and 4.0, respectively), and the other treatment consisted of two salinity levels, 0 and 100 mmol l−1 Na+ (NaCl and Na2SO4). The results showed that low pH decreased the malondialdehyde (MDA) and hydrogen peroxide contents of ginger seedling leaves under salt stress. Moreover, low pH and salt stress significantly decreased the contents of non‐enzymatic antioxidants, including ascorbate (AsA) and glutathione (GSH), and increased the activities of antioxidant enzymes, such as superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR) and glutathione reductase (GR). In addition, salt stress inhibited the N assimilation process in ginger seedling leaves, but low pH improved N assimilation under salt stress. Our finding was that low pH alleviated oxidative damage and promoted N assimilation under salt stress.

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Section: Discussionmentioning

confidence: 73%

Low pH altered salt stress in antioxidant metabolism and nitrogen assimilation in ginger (Zingiber officinale) seedlings

Yin

Liu

Cao

et al. 2019

Physiologia Plantarum

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“…The contribution of ascorbic acid in the cellular antioxidative defense mechanism [7] has been described in the Halliwell-Asada pathway in detail. Studies revealed the enhancement in osmotic stress tolerance as a result of higher antioxidant activities in several plants, such as maize [13], radish [14], and wheat [15].…”

Section: Introductionmentioning

confidence: 99%

Use of Nitric Oxide and Hydrogen Peroxide for Better Yield of Wheat (Triticum aestivum L.) under Water Deficit Conditions: Growth, Osmoregulation, and Antioxidative Defense Mechanism

Habib

Ali

et al. 2020

Plants

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123

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The present experiment was carried out to study the influences of exogenously-applied nitric oxide (NO) donor sodium nitroprusside (SNP) and hydrogen peroxide (H2O2) as seed primers on growth and yield in relation with different physio-biochemical parameters, antioxidant activities, and osmolyte accumulation in wheat plants grown under control (100% field capacity) and water stress (60% field capacity) conditions. During soaking, the seeds were covered and kept in completely dark. Drought stress markedly reduced the plant growth, grain yield, leaf photosynthetic pigments, total phenolic content (TPC), total soluble proteins (TSP), leaf water potential (Ψw), leaf turgor potential (Ψp), osmotic potential (Ψs), and leaf relative water content (LRWC), while it increased the activities of enzymatic antioxidants and the accumulation of leaf ascorbic acid (AsA), proline (Pro), glycine betaine (GB), malondialdehyde (MDA), and H2O2. However, seed priming with SNP and H2O2 alone and in combination mitigated the deleterious effects of water stress on growth and yield by improving the Ψw, Ψs, Ψp, photosynthetic pigments, osmolytes accumulation (GB and Pro), TSP, and the antioxidative defense mechanism. Furthermore, the application of NO and H2O2 as seed primers also reduced the accumulation of H2O2 and MDA contents. The effectiveness was treatment-specific and the combined application was also found to be effective. The results revealed that exogenous application of NO and H2O2 was effective in increasing the tolerance of wheat plants under drought stress in terms of growth and grain yield by regulating plant–water relations, the antioxidative defense mechanism, and accumulation of osmolytes, and by reducing the membrane lipid peroxidation.

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“…Further, the application of sodium nitroprusside (source of NO) significantly mitigated growth inhibition and enhanced the contents of antioxidants and osmoprotectants in salt-challenged Pisum sativum L. [99]. Moreover, the NO donor sodium nitroprusside upregulated antioxidant defense mechanisms and increased ascorbic acid (AsA) contents and total phenolic contents (TPC), thereby effectively increasing the growth and grain yield of wheat under salinity stress [1] (Table 3). Collectively, the accumulating data suggest that NO effectively enhances the growth of plants by upregulating antioxidative defense mechanisms and improving metabolic and physiological changes.…”

Section: Salt Stressmentioning

confidence: 99%

“…In nature, plants are constantly challenged by a variety of abiotic stressors, such as heavy metals, low or high temperature, drought or osmotic pressure, salt, and ultraviolet irradiation. Several studies have found that plants are affected in their height, leaf morphology, and stomatal openness under abiotic stress [1][2][3]. In addition, the physiological metabolism of plants is disordered, whereby the contents of proline (Pro), electrolyte leakage (EC), malondialdehyde (MDA), and hydrogen peroxide (H 2 O 2 ) are changed by abiotic stress [4,5].…”

Section: Introductionmentioning

confidence: 99%

Research Progress on the Functions of Gasotransmitters in Plant Responses to Abiotic Stresses

Yao

Yang

et al. 2019

Plants

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Abiotic stress is one of the major threats affecting plant growth and production. The harm of abiotic stresses includes the disruption of cellular redox homeostasis, reactive oxygen species (ROS) production, and oxidative stress in the plant. Plants have different mechanisms to fight stress, and these mechanisms are responsible for maintaining the required homeostasis in plants. Recently, the study of gasotransmitters in plants has attracted much attention, especially for abiotic stress. In the present review, abiotic stressors were mostly found to induce gasotransmitter production in plants. Meanwhile, these gasotransmitters can enhance the activity of several antioxidant enzymes, alleviate the harmfulness of ROS, and enhance plant tolerance under various stress conditions. In addition, we introduced the interaction of gasotransmitters in plants under abiotic stress. With their promising applications in agriculture, gasotransmitters will be adopted in the near future.Plants 2019, 8, 605 2 of 23 unique and regulate specific biological functions. Gasotransmitters have long been of great interest in a wide range of fields. Over the past few decades, the roles of these signaling molecules have been extensively studied for their biological applications. Recently, the emissions of endogenous gasotransmitters in plants have been widely studied and analyzed, thereby providing information to facilitate our understanding of new gasotransmitter signaling pathways. Previous studies found that in response to abiotic stressors, plants usually produce these gasotransmitters [12][13][14]. In addition, there is now considerable evidence to show that gasotransmitters can play a pivotal role in enhancing plant tolerance [2,15,16]. Subsequently, biological gases from complex extra and intracellular pathways and gas mediators may regulate many processes in an antagonistic or synergistic way.In the present review, we introduce the production of gasotransmitters in plants under abiotic stress. Meanwhile, we focused on the recent advances in the roles of gasotransmitters under abiotic stresses and their interaction with other gasotransmitters.

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Seed priming by sodium nitroprusside improves salt tolerance in wheat ( Triticum aestivum L.) by enhancing physiological and biochemical parameters

Cited by 162 publications

References 41 publications

Low pH altered salt stress in antioxidant metabolism and nitrogen assimilation in ginger (Zingiber officinale) seedlings

Low pH altered salt stress in antioxidant metabolism and nitrogen assimilation in ginger (Zingiber officinale) seedlings

Use of Nitric Oxide and Hydrogen Peroxide for Better Yield of Wheat (Triticum aestivum L.) under Water Deficit Conditions: Growth, Osmoregulation, and Antioxidative Defense Mechanism

Research Progress on the Functions of Gasotransmitters in Plant Responses to Abiotic Stresses

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