Tomato Jasmonic Acid-Deficient Mutant spr2 Seedling Response to Cadmium Stress

Zhao, Shiyang; Ma, Qiushuang; Xu, Xin; Li, Guangzhe; Lin, Haoran

doi:10.1007/s00344-015-9563-0

Cited by 51 publications

(21 citation statements)

References 26 publications

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“…Net photosynthetic rate (Pn) was determined using a portable photosynthetic system (LI‐6200, LI‐COR, Lincoln, NE, USA) at ambient climatic conditions, irradiance of 200 μmol m −2 s −1 , and 25°C. The ratio of variable to maximum chlorophyll fluorescence (Fv/Fm) and actual efficiency of PS2 (Ф PS2 ) were determined using a fluorometer (Handy‐PEA, Hansatech, Norfolk, UK) as previously described (Zhao, Ma, Xu, Li, & Hao, ). Hydrogen peroxide (H 2 O 2 ) content was quantified as described by He et al.…”

Section: Methodsmentioning

confidence: 99%

Arbuscular mycorrhiza‐mediated resistance in tomato against Cladosporium fulvum‐induced mould disease

Wang

Yin

et al. 2017

Journal of Phytopathology

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Root colonization with arbuscular mycorrhizal fungi (AMF) enhances plant resistance particularly against soil-borne pathogenic fungi. In this study, mycorrhizal inoculation with Glomus mosseae (Gm) significantly alleviated tomato mould disease caused by the air-borne fungal pathogen, Cladosporium fulvum (Cf). The disease index (DI) in local leaves (receiving pathogen inoculation) and systemic leaves (just above the local leaf without pathogen inoculation) was 36.4% and 11.7% in mycorrhizal plants, respectively, whereas DI was 59.6% and 36.4% in the corresponding leaves of AMF noninoculated plants, after 50 days of Gm inoculation, corresponding to 15 days after Cf inoculation by leaf infiltration. Foliar spray inoculation with Cf also revealed that AMF pre-inoculated plants had a higher resistance against subsequent pathogen infection, where the DI was 41.3% in mycorrhizal plants vs. 64.4% in AMF non-inoculated plants.AMF-inoculated plants showed significantly higher fresh and dry weight than noninoculated plants under both control (without pathogen) and pathogen treatments.AMF-inoculated plants exhibited significant increases in activities of superoxide dismutase and peroxidase, along with decreases in levels of H 2 O 2 and malondialdehyde, compared with non-inoculated plants after pathogen inoculation. AMF inoculation led to increases in total chlorophyll contents and net photosynthesis rate as compared with non-inoculated plants under control and pathogen infection. Pathogen infection on AMF non-inoculated plants led to decreases in chlorophyll fluorescence parameters. However, pathogen infection did not affect these parameters in mycorrhizal plants. Taken together, these results indicate that AMF colonization may play an important role in plant resistance against air-borne pathogen infection by maintaining redox poise and photosynthetic activity. K E Y W O R D Santioxidative defence, arbuscular mycorrhiza, Cladosporium fulvum, disease index, Glomus mosseae, photosynthesis, tomato | INTRODUCTIONThe biotrophic pathogen fungus Cladosporium fulvum Cooke infects its only host tomato causing leaf mould disease, which is one of the most severe diseases threatening tomato yield and quality, especially in protected cultivation. For example, a yield loss of 10%-25% in normal years and even over 50% in bad years occurred in China (Sun, 2006). In conventional agricultural management, a large amount of synthetic fungicide is applied to control mould disease, which could cause serious environmental contamination and harm human health.In addition, new races of C. fulvum frequently emerge raising a problem of fungicide tolerance.*These authors contributed equally to this work. Control plants were sprayed with sterile distilled water. | MATERIALS AND METHODS | Plant culture and fungal treatment | Analyses of disease index and mycorrhizal colonizationThe DI was analysed after 15 days of pathogen inoculation accord- | Determination of plant growthThe effect of AMF colonization, pathogen infection, alone or in combinat...

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Section: Methodsmentioning

confidence: 99%

Arbuscular mycorrhiza‐mediated resistance in tomato against Cladosporium fulvum‐induced mould disease

Wang

Yin

et al. 2017

Journal of Phytopathology

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“…Many of these metals have no beneficial functions in plants, and may in fact be toxic to plants even at very low levels [47]. Zhao et al [48] compared Cd stress responses in wild-type and JA-deficient mutant spr2 tomatoes and observed that Cd concentrations in roots and leaves increased more at higher doses of CdCl 2 , particularly in spr2 plants. The results demonstrated that a lack of endogenous JA could enhance the sensitivity of tomato seedlings to Cd.…”

Section: Heavy Metal Stressmentioning

confidence: 99%

Functions of Jasmonic Acid in Plant Regulation and Response to Abiotic Stress

Wang

Song

Gong

et al. 2020

IJMS

413

207

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Jasmonic acid (JA) is an endogenous growth-regulating substance, initially identified as a stress-related hormone in higher plants. Similarly, the exogenous application of JA also has a regulatory effect on plants. Abiotic stress often causes large-scale plant damage. In this review, we focus on the JA signaling pathways in response to abiotic stresses, including cold, drought, salinity, heavy metals, and light. On the other hand, JA does not play an independent regulatory role, but works in a complex signal network with other phytohormone signaling pathways. In this review, we will discuss transcription factors and genes involved in the regulation of the JA signaling pathway in response to abiotic stress. In this process, the JAZ-MYC module plays a central role in the JA signaling pathway through integration of regulatory transcription factors and related genes. Simultaneously, JA has synergistic and antagonistic effects with abscisic acid (ABA), ethylene (ET), salicylic acid (SA), and other plant hormones in the process of resisting environmental stress.

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“…Additionally, ABA promotes the chelation and compartmentation of heavy metals through ABA-responsive transcriptional factors (Hu et al, 2020). Moreover, increasing pieces of evidence demonstrated the involvement of jasmonates consisting of JA and its derivatives such as jasmonoyl-l-isoleucine (JA-Ile) and methyl-JA in the detoxification and transport of toxic mineral stress (Maksymiec et al, 2005;Chen et al, 2014;Zhao et al, 2016;Wang et al, 2018;Bali et al, 2019;Lei et al, 2020b). Some regulatory mechanisms of jasmonates in response to toxic heavy metals and metalloids have been revealed in model plants (Lei et al, 2020b) and major cereals such as rice (Oryza sativa) (Yu et al, 2012;Azeem, 2018;Mousavi et al, 2020), but the evolutionary origin linking JA signaling and plant tolerance to toxic elements is less studied in other green plants including green algae, bryophytes, lycophytes, ferns, and gymnosperms (Chen et al, 2017;Adem et al, 2020;Deng et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Molecular Interaction and Evolution of Jasmonate Signaling With Transport and Detoxification of Heavy Metals and Metalloids in Plants

et al. 2021

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An increase in environmental pollution resulting from toxic heavy metals and metalloids [e.g., cadmium (Cd), arsenic (As), and lead (Pb)] causes serious health risks to humans and animals. Mitigation strategies need to be developed to reduce the accumulation of the toxic elements in plant-derived foods. Natural and genetically-engineered plants with hyper-tolerant and hyper-accumulating capacity of toxic minerals are valuable for phytoremediation. However, the molecular mechanisms of detoxification and accumulation in plants have only been demonstrated in very few plant species such as Arabidopsis and rice. Here, we review the physiological and molecular aspects of jasmonic acid and the jasmonate derivatives (JAs) in response to toxic heavy metals and metalloids. Jasmonates have been identified in, limiting the accumulation and enhancing the tolerance to the toxic elements, by coordinating the ion transport system, the activity of antioxidant enzymes, and the chelating capacity in plants. We also propose the potential involvement of Ca2+ signaling in the stress-induced production of jasmonates. Comparative transcriptomics analyses using the public datasets reveal the key gene families involved in the JA-responsive routes. Furthermore, we show that JAs may function as a fundamental phytohormone that protects plants from heavy metals and metalloids as demonstrated by the evolutionary conservation and diversity of these gene families in a large number of species of the major green plant lineages. Using ATP-Binding Cassette G (ABCG) transporter subfamily of six representative green plant species, we propose that JA transporters in Subgroup 4 of ABCGs may also have roles in heavy metal detoxification. Our paper may provide guidance toward the selection and development of suitable plant and crop species that are tolerant to toxic heavy metals and metalloids.

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Tomato Jasmonic Acid-Deficient Mutant spr2 Seedling Response to Cadmium Stress

Cited by 51 publications

References 26 publications

Arbuscular mycorrhiza‐mediated resistance in tomato against Cladosporium fulvum‐induced mould disease

Arbuscular mycorrhiza‐mediated resistance in tomato against Cladosporium fulvum‐induced mould disease

Functions of Jasmonic Acid in Plant Regulation and Response to Abiotic Stress

Molecular Interaction and Evolution of Jasmonate Signaling With Transport and Detoxification of Heavy Metals and Metalloids in Plants

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