Fusaric acid is a crucial factor in the disturbance of leaf water imbalance in Fusarium-infected banana plants

Dong, Xian; Ling, Ning; Wang, Min; Guo, Shiwei

doi:10.1016/j.plaphy.2012.08.004

Cited by 104 publications

(94 citation statements)

References 36 publications

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“…As previously reported by Araújo et al, (2014), C. fimbriata extensively colonize the pith parenchyma in the radial direction in the stem tissues of plants from susceptible mango cultivars, such as Espada and Haden; in contrast, in resistant cultivars, the fungal hyphae barely reach these cells. The formation of these defense structures, together with the tissue colonization itself and increasing structural damages, ultimately lead to an increase in sap flow resistance and may result in an altered plant hydration status (Nogués et al, 2002;Dong et al, 2012;Park et al, 2013). In due course, the alterations in water availability may lead to reductions in photosynthesis, transpiration rates, leaf longevity and integrity (Nogués et al, 2002) as observed for a series of other pathosystems that also involve the mango-C. fimbriata interaction .…”

Section: Discussionmentioning

confidence: 99%

Differential leaf gas exchange performance of mango cultivars infected by different isolates of Ceratocystis fimbriata

Bispo

Araújo

Moreira

et al. 2016

Sci. agric. (Piracicaba, Braz.)

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Caused by the vascular fungus Ceratocystis fimbriata, mango wilt is considered to be one of the most serious threats in mango-producing regions worldwide. However, changes in leaf gas exchange level and the mechanisms underlying host responses to this fungal infection remain poorly described. This study aimed to evaluate potential changes in the leaf gas exchange of different mango cultivars (Ubá, Espada, Haden and Tommy Atkins) in response to two Brazilian isolates of C. fimbriata (CEBS15 and MSAK16) to non-invasively assess cultivar variability in relation to the basal level of resistance to mango wilt. Both isolates, regardless of the cultivar, caused reductions in stomatal conductance and, thus, a reduction in CO 2 assimilation via diffusive limitations. Taking into account the full length of the internal lesion and the radial colonization of the stem tissues, both isolates showed equivalent aggressiveness when inoculated into the Haden and Tommy Atkins cultivars. Conversely, when compared to the CEBS15 isolate of C. fimbriata, the MSAK16 isolate was more aggressive in cv. Espada and less aggressive in cv. Ubá.

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Section: Discussionmentioning

confidence: 99%

Differential leaf gas exchange performance of mango cultivars infected by different isolates of Ceratocystis fimbriata

Bispo

Araújo

Moreira

et al. 2016

Sci. agric. (Piracicaba, Braz.)

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“…Plant pathogenic fungi attack root system and limit the absorption, assimilation and translocation of nutrients in roots and other parts of diseased plant (Marschner 1995;Huber and Graham 1999;Dordas 2008). Moreover, pathogens utilize nutrients for their growth and survival, which results in deficiency of nutrients' availability to plant, thereby increasing disease susceptibility (Spann and Schumann 2009).The secondary metabolites of plant pathogens such as mycotoxins enhance the opening of stomata via activating an H + -pump in the plasma membrane through stimulation of H + -ATPase, which creates an electrochemical gradient to drive elements as K + influx into guard cells (Zeng et al 2010;Dong et al 2012;Dehgahi et al 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Antioxidant enzymes -including superoxide dismutase (SOD), ascorbate peroxidase (APX), catalase (CAT) and glutathione reductase (GR) -and non-enzymatic components composed of glutathione and ascorbic acid (AsA) are found to involve in scavenging of the ROS. The potential recovery of plants from oxidative damage is dependent on the detoxification of ROS for protecting vital cellular functions (Dong et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Plant defense approach ofBacillus subtilis(BERA 71) againstMacrophomina phaseolina(Tassi) Goid in mung bean

Hashem

Radhakrishnan

Kumar

2017

Journal of Plant Interactions

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This study was aimed to elucidate the mitigation mechanism of an endophytic bacterium, Bacillus subtilis (BERA 71) against Macrophomina phaseolina (Tassi) Goid disease in mung bean. M. phaseolina reduced the plant growth by inducing disease, hydrogen peroxide (H 2 O 2 ) and lipid peroxidation. The inoculation of B. subtilis to diseased plants increased chlorophyll, ascorbic acids, and superoxide dismutase, catalase, peroxidase, ascorbate peroxidase and glutathione reductase activities, and while inhibited H 2 O 2 and lipid peroxidation for enhancing plant growth. In addition, B. subtilis association in plants mitigated the M. phaseolina infection due to increase of indole acetic acids and indole butyric acid, and also a decrease of abscisic acid. However, the nutrients (N, K, Ca, Mg, Zn, Cu, Mn and Fe) were increased, except Na in M. phaseolina diseased plants treated with B. subtilis. The result of this study suggests that B. subtilis interaction with plants can modulate the metabolism of pigments, hormones, antioxidants and nutrients against M. phaseolina to induce disease resistance in mung bean. ARTICLE HISTORY

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“…It has been suggested that FA could act as an elicitor of plant responses to pathogen attack [306]. The concentration of FA is positively correlated with Fusarium wilt index [307]. Infected plants had reduced stomata conductance and transpiration rate, which resulted in lower levels of water loss than in control plants [307].…”

Section: Phytotoxicity and Mechanism Of Actionmentioning

confidence: 99%

Mycotoxins: Producing Fungi and Mechanisms of Phytotoxicity

2015

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Abstract:Mycotoxins are secondary fungal metabolites, toxic to humans, animals and plants. Among the hundreds of known mycotoxins, aflatoxins, citrinin, patulin, penicillic acid, tenuazonic acid, ochratoxin A, cytochalasins, deoxynivalenol, fumonisins, fusarin C, fusaric acid, and zearalenone are considered the types that most contaminate cereal grain. The majority of the mycotoxins in these groups are produced by three fungal genera: Aspergillus, Penicillium and Fusarium. These metabolites primarily affect the seed quality, germination, viability, seedling vigour, growth of root and cleoptile. Additionally, since the fungi responsible for the production of these mycotoxins are often endophytes that infect and colonize living plant tissues, accumulation of mycotoxins in the plant tissues may at times be associated with development of plant disease symptoms. The presence of mycotoxins, even in the absence of disease symptoms, may still have subtle biological effects on the physiology of plants. Several studies highlight the toxic effects of mycotoxins on animals and cell lines but little is known about the mode of action of most of these metabolites on plant cells. The most important mycotoxins with phytotoxic effects and their producers in addition to their discovery are briefly outlined below and will be addressed in this article.

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Fusaric acid is a crucial factor in the disturbance of leaf water imbalance in Fusarium-infected banana plants

Cited by 104 publications

References 36 publications

Differential leaf gas exchange performance of mango cultivars infected by different isolates of Ceratocystis fimbriata

Differential leaf gas exchange performance of mango cultivars infected by different isolates of Ceratocystis fimbriata

Plant defense approach ofBacillus subtilis(BERA 71) againstMacrophomina phaseolina(Tassi) Goid in mung bean

Mycotoxins: Producing Fungi and Mechanisms of Phytotoxicity

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