Investigating the effect of methyl jasmonate and melatonin on resistance of Malus crabapple ‘Hong Jiu’ to ozone stress

Qiu, Yanfen; An, Kai; Sun, Jingjing; Chen, Xuesen; Gong, Xiaojun; Ma, Li; Wu, Shuqing; Jiang, Shenghui; Zhang, Zongying; Wang, Yanling

doi:10.1007/s11356-019-05946-w

Cited by 25 publications

(11 citation statements)

References 43 publications

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“…The absorbance was obtained at 520 nm by using a spectrophotometer (Yoke, Shanghai, China). Soluble protein and soluble sugar contents were determined as described by Qiu et al (2019) and Sharma et al, 2019, respectively. Determinations of Na + and K + A total of 0.5 g (dry weight) of shoots and roots from apple seedlings were used for the detection of Na + and K + contents. The concentrations of Na + and K + were measured by inductively coupled plasma-optical emission spectrometry (PerkinElmer, Waltham Massachusetts, USA) as described by Liang et al (2017).…”

Section: Determination Of Electrolyte Leakage and Osmolytesmentioning

confidence: 99%

Exogenous Brassinolide Alleviates Salt Stress in Malus hupehensis Rehd. by Regulating the Transcription of NHX-Type Na+(K+)/H+ Antiporters

Zheng

Tian

2020

Front. Plant Sci.

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Brassinolide (BL) mediates various physiological processes and improves plant tolerance to abiotic stresses. However, the effects and mechanism of exogenous BL on the salt tolerance of apple seedlings remain unclear. Herein, we investigated the role of BL in the salt stress response of Malus hupehensis Rehd., a widely grown apple rootstock. Saltstressed apple seedlings showed significant decline in chlorophyll content and photosynthetic rate, and the application of 0.2 mg/L exogenous BL alleviated salt stress and maintained photosynthetic capacity. Exogenous BL application can strengthen the activities of superoxide dismutase and catalase and thereby eliminates reactive oxygen species (ROS) production induced by salt stress and promote the accumulation of proline and soluble sugar, thus maintaining osmotic balance. Furthermore, exogenous BL application decreased Na + accumulation and increased K + content in shoots and roots under salt stress by regulating the expression levels of Na + (K +)/H + antiporter genes (MhNHXs). MhBZR1 and MhBZR2, which are the key transcription factors in the BR signal transduction pathway, can directly bind to the promoter of MhSOS1 and MhNHX4-1, respectively, and inhibit their expression. Our findings would provide a theoretical basis for analyzing the mechanism of exogenous BL application on the salt tolerance of apples.

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Section: Determination Of Electrolyte Leakage and Osmolytesmentioning

confidence: 99%

Exogenous Brassinolide Alleviates Salt Stress in Malus hupehensis Rehd. by Regulating the Transcription of NHX-Type Na+(K+)/H+ Antiporters

Zheng

Tian

2020

Front. Plant Sci.

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“…Melatonin plays a huge role in plant protection . It acts as an antioxidant and a signaling molecule that increases the abiotic resistance to stress in plants (84,90,95,(97)(98)(99)(100)(101)(102)(103)(104)(105)(106). It improves the tolerance of plants to heavy metals such as zinc, vanadium, cadmium and others.…”

Section: Antioxidative Action In Plantsmentioning

confidence: 99%

Melatonin as a powerful antioxidant

Chrustek

Olszewska−Słonina

2020

Acta Pharmaceutica

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Melatonin is a hormone that has many body functions and, for several decades, its antioxidant potential has been increasingly talked about. There is a relationship between failure in melatonin production in the pineal gland, an insufficient supply of this hormone to the body, and the occurrence of free radical etiology diseases such as neurodegenerative diseases, cardiovascular diseases, diabetes, cancer and others. Despite the development of molecular biology, numerous in vitro and in vivo studies, the exact mechanism of melatonin antioxidant activity is still unknown. Nowadays, the use of melatonin supplementation is more and more common, not only to prevent insomnia, but also to slow down the aging process and provide protection against diseases. The aim of this study is to get acquainted with current reports on melatonin, antioxidative mechanisms and their importance in diseases of free radical etiology.

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“…MT also reduces the excessive ROS production induced by HM in rice, wheat, and watermelon by activating the SOD ( Lee and Back, 2017 ; Nawaz et al, 2018 ). Similarly, other authors also reported that MT significantly improved the activities of APX, CAT, POD, SOD, and other antioxidant activities under waterlogging, cold, and ozone stress ( Zhang et al, 2017c ; Qiu et al, 2019 ; Gu et al, 2021 ). Thus, all these findings endorsed that MT supplementation effectively up-graded the antioxidant defence system to alleviate the effects of different abiotic stresses.…”

Section: Mechanism Of Melatonin Induced Stress Tolerancementioning

confidence: 58%

“…However, MT application reduced the MDA accumulation by increasing the antioxidant activities (CAT, POD, and SOD). Further, MT also improved the accumulation of soluble proteins and non-enzymatic antioxidant activities and conferred the O3 tolerance ( Qiu et al, 2019 ). Therefore, MT induced the O 3 tolerance by favouring the antioxidant activities and reducing the MDA and ethylene accumulation.…”

Section: Melatonin Induce Elevated Ozone 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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Investigating the effect of methyl jasmonate and melatonin on resistance of Malus crabapple ‘Hong Jiu’ to ozone stress

Cited by 25 publications

References 43 publications

Exogenous Brassinolide Alleviates Salt Stress in Malus hupehensis Rehd. by Regulating the Transcription of NHX-Type Na+(K+)/H+ Antiporters

Exogenous Brassinolide Alleviates Salt Stress in Malus hupehensis Rehd. by Regulating the Transcription of NHX-Type Na+(K+)/H+ Antiporters

Melatonin as a powerful antioxidant

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

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