Effects of exogenous salicylic acid and nitric oxide on lipid peroxidation and antioxidant enzyme activities in leaves of Brassica napus L. under nickel stress

Kazemi, Nader; Khavari-Nejad, Ramazan Ali; Fahimi, Hossein; Saadatmand, Sara; Nejadsattari, Taher

doi:10.1016/j.scienta.2010.07.037

Cited by 196 publications

(129 citation statements)

References 36 publications

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“…Combined NO and SA application was observed to counteract the toxic efects of Ni in Brassica napus through enhanced chlorophyll contents and reduced lipid peroxidation and proline accumulation [77]. Similarly, NO and SA increased Cd contents in cell walls of Cd-stressed Arachis hypogaea that reduced the distribution of Cd to organelles [78].…”

Section: No-phytohormone Cross Talk Under Heavy Metals Stressmentioning

confidence: 93%

Cross Talk between Nitric Oxide and Phytohormones Regulate Plant Development during Abiotic Stresses

Nawaz¹,

Shabbir²,

Shahbaz³

et al. 2017

Phytohormones - Signaling Mechanisms and Crosstalk in Plant Development and Stress Responses

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Plants, being sessile, are concurrently exposed to various biotic and abiotic stresses. The perception of stress signals in plants involves a wide spectrum of signal transduction pathways that interact to induce tolerance against adverse environmental conditions. This functional overlapping among various stress signaling cascades also leads to the expression of genes that regulate biosynthesis or action of other hormones. Phytohormonal signals, activated by both developmental and environmental responses, play a crucial role to develop stress tolerance in plants. Nitric oxide (NO) is one of the major players in plant signaling networks. Emerging evidence supports that NO interplays with signaling pathways of auxins, gibberellins, abscisic acid, ethylene, jasmonic acid, brassinosteroids, and other plant hormones to control metabolism, growth, and development in plants. This chapter focuses on the current state of knowledge of cross talk between signaling pathways of NO and phytohormones in plants exposed to various abiotic stresses.

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Section: No-phytohormone Cross Talk Under Heavy Metals Stressmentioning

confidence: 93%

Cross Talk between Nitric Oxide and Phytohormones Regulate Plant Development during Abiotic Stresses

Nawaz¹,

Shabbir²,

Shahbaz³

et al. 2017

Phytohormones - Signaling Mechanisms and Crosstalk in Plant Development and Stress Responses

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show abstract

“…However, similar to ethylene, NO plays a controversial role in HM tolerance. Exogenous NO was shown to contribute to the enhancement of plant tolerance to excessive Cd, Ni, and Al (Laspina et al, 2005;Wang and Yang, 2005;Singh et al, 2008;Kazemi et al, 2010), whereas endogenous NO was reported to be involved in Cd toxicity in plants (Groppa et al, 2008;Besson-Bard et al, 2009;Ma et al, 2010). Recently, it was reported that the Cd-induced activation of MAPK6 is mediated by NO (Hahn and Harter, 2009;Ye et al, 2013), which might suggest a link between NO and ethylene through MAPK6 in plant responses to HM stress.…”

Section: Ethylene and Its Cross Talk With Other Hormones And Signalinmentioning

confidence: 99%

Role of Ethylene and Its Cross Talk with Other Signaling Molecules in Plant Responses to Heavy Metal Stress

et al. 2015

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Excessive heavy metals (HMs) in agricultural lands cause toxicities to plants, resulting in declines in crop productivity. Recent advances in ethylene biology research have established that ethylene is not only responsible for many important physiological activities in plants but also plays a pivotal role in HM stress tolerance. The manipulation of ethylene in plants to cope with HM stress through various approaches targeting either ethylene biosynthesis or the ethylene signaling pathway has brought promising outcomes. This review covers ethylene production and signal transduction in plant responses to HM stress, cross talk between ethylene and other signaling molecules under adverse HM stress conditions, and approaches to modify ethylene action to improve HM tolerance. From our current understanding about ethylene and its regulatory activities, it is believed that the optimization of endogenous ethylene levels in plants under HM stress would pave the way for developing transgenic crops with improved HM tolerance.

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“…24,25 Reduced Pro content by SNP has also been reported in canola plants under Ni stress. 26 GSH-and SNPCGSH-supplemented seedlings showed greater reduction in Pro content than with SNP alone, indicating these seedlings suffered from less stress. NO-and GSH-mediated relief of Cu stress can partially be supported by 1) the antioxidant nature of both protectants scavenging ROS directly, and 2) forming NO-Cu or GSH-Cu conjugates in the nutrient medium and thus inhibit Cu uptake and accumulation (Fig.…”

mentioning

confidence: 91%

Interactive effects of nitric oxide and glutathione in mitigating copper toxicity of rice (Oryza sativaL.) seedlings

Mostofa

Seraj

Fujita

2015

Plant Signaling & Behavior

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Nitric oxide (NO) and glutathione (GSH) are 2 vital components of the antioxidant system that play diverse roles in plant responses to abiotic stresses. Recently, we have reported that exogenous supply of both these molecules reduced copper (Cu) toxicity in rice seedlings. Individual as well as co-treatment of sodium nitroprusside (SNP: a NO donor) and GSH with Cu significantly mitigated the adverse effects of Cu, evident in the reduced level of oxidative markers such as H 2 O 2 , superoxide (O 2 ¢¡ ), malondialdehyde (MDA), and proline (Pro). GSH content and most of the antioxidative and glyoxalase enzymes were up-regulated upon Cu stress, indicating their responses were co-related with the level of stress. Our results indicated that direct ROS scavenging, reduced Cu uptake, and the balanced antioxidative and glyoxalase systems, at least in part, successfully executed NO-and GSH-mediated alleviation of Cu toxicity in rice seedlings. In addition, the combined effect of adding SNP and GSH together was more efficient than the effect of adding them individually. Here, we are speculating that 1) GSH and Pro could be used as potential markers for copper stress, and 2) adding SNP and GSH might produce S-nitrosoglutathione (GSNO) which could be a source of bioactive NO and may affect many regulatory processes involved in Cu-stress tolerance. We further note that the combined effect of adding SNP and GSH was pronounced in inhibiting the uptake and translocation of Cu in rice seedlings.

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Effects of exogenous salicylic acid and nitric oxide on lipid peroxidation and antioxidant enzyme activities in leaves of Brassica napus L. under nickel stress

Cited by 196 publications

References 36 publications

Cross Talk between Nitric Oxide and Phytohormones Regulate Plant Development during Abiotic Stresses

Cross Talk between Nitric Oxide and Phytohormones Regulate Plant Development during Abiotic Stresses

Role of Ethylene and Its Cross Talk with Other Signaling Molecules in Plant Responses to Heavy Metal Stress

Interactive effects of nitric oxide and glutathione in mitigating copper toxicity of rice (Oryza sativaL.) seedlings

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