First evidence of ethylene production by<i>Fusarium mangiferae</i>associated with mango malformation

Ansari, Mohammad Wahid; Shukla, Alok; Pant, Ramesh Chandra; Tuteja, Narendra

doi:10.4161/psb.22673

Cited by 12 publications

(17 citation statements)

References 19 publications

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“…The malady is practically missing from the southern and western areas of the country (Ansari et al 2013a). There are indications that several species of Fusarium are probably associated with mango malformation , while F. mangiferae has been reported to cause malformation via producing ethylene itself (Ansari et al 2012(Ansari et al , 2013b. Similarly, the characteristic symptoms evidenced by malformed plants may be ascribed to amplified production and accumulation of definite biochemical metabolites.…”

Section: Introductionmentioning

confidence: 99%

“…'Ethylene' origin nature of malady Several workers have implicated a role of ethylene in mango malformation (Singh et al 1994;Pant 2000;Bains and Pant 2003;Nailwal et al 2006;Krishnan et al 2009;Rymbai and Rajesh 2011;Ansari et al 2012Ansari et al , 2013aRani et al 2013;Singh et al 2014). Malformin-like substances are in some way concerned to cause malformation by stimulating ethylene production (Singh and Dhillon 1989a).…”

Section: Malformation and Its Etiologymentioning

confidence: 99%

“…2). Multiple biotic or abiotic stresses offer signals which typically motivate ethylene formation in plants ( Abeles and Abeles 1973;Apelbaum and Yang 1981;Yang and Hoffman 1984;Ansari et al 2012Ansari et al , 2013a. The incident of elevated ethylene formation in effect to stress is usually called 'stress ethylene', which seems to be a paramount causal agent of malformation (Jouyban 2012).…”

Section: Stress Stimulated Ethylene Formationmentioning

confidence: 99%

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Mango (Mangifera indica L.) malformation: a malady of stress ethylene origin

Ansari

Rani

Shukla

et al. 2015

Physiol Mol Biol Plants

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Mango malformation is a major constrain in mango production worldwide causing heavy economic losses depending on cultivar type and susceptibility. The malady has variously been ascribed to be acarological, viral, fungal and physiological in nature. Here, we discuss the ethylene origin nature of malady. There are indications that most of the symptoms of mango malformation resemble with those of caused by ethylene effects. Multiple evidence reports of putative causal agents including Fusarium mangiferae to augment the endogenous pool of 'stress ethylene' are well documented. Therefore, over load of 'stress ethylene' impairs morphology malformed tissue and cyanide derived from ethylene biosynthesis causes necrosis and death of malformed cells. This review covers various factors eliciting 'stress ethylene' formation, role of ethylene in development of malady and regulation of ethylene action to reduce malformation in mango.

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Section: Introductionmentioning

confidence: 99%

Section: Malformation and Its Etiologymentioning

confidence: 99%

Section: Stress Stimulated Ethylene Formationmentioning

confidence: 99%

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Mango (Mangifera indica L.) malformation: a malady of stress ethylene origin

Ansari

Rani

Shukla

et al. 2015

Physiol Mol Biol Plants

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“…19 Fusarium mangiferae associated with the disease also has the capacity to produce ethylene itself which seems to add the 'stress ethylene' pool in mango floral tissue. 6 As pollen tube penetration is a wounding factor, wound-induced ethylene might be one of the early events after pollination. 8 The flower parts differed depending on the treatment used: wounding and desiccation accelerated the ethylene production in ovaries and styles; ethylene exposure resulted in enhanced ethylene emission of petals and auxin induced remarkable amount of ethylene released from leaves.…”

Section: Introductionmentioning

confidence: 99%

“…5 However, the latest citations confirm that ethylene play a role in causing malformation. 6 Multiple biotic or abiotic stresses give signals which usually stimulate ethylene production. 7 Stress ethylene production due to wounding injury caused by pollen tube penetration after pollination has been reported.…”

Section: Introductionmentioning

confidence: 99%

Fused lobed anther and hooked stigma affect pollination, fertilization and fruit set in mango

Rani

Ansari

Shukla

et al. 2013

Plant Signaling & Behavior

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Analysis of the global regulator Lae1 uncovers a connection between Lae1 and the histone acetyltransferase HAT1 in Fusarium fujikuroi

Niehaus

Rindermann²,

Janevska³

et al. 2017

Appl Microbiol Biotechnol

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The fungus Fusarium fujikuroi causes "bakanae" disease of rice due to its ability to produce gibberellins (GAs), a family of plant hormones. Recent genome sequencing revealed the genetic capacity for the biosynthesis of 46 additional secondary metabolites besides the industrially produced GAs. Among them are the pigments bikaverin and fusarubins, as well as mycotoxins, such as fumonisins, fusarin C, beauvericin, and fusaric acid. However, half of the potential secondary metabolite gene clusters are silent. In recent years, it has been shown that the fungal specific velvet complex is involved in global regulation of secondary metabolism in several filamentous fungi. We have previously shown that deletion of the three components of the F. fujikuroi velvet complex, vel1, vel2, and lae1, almost totally abolished biosynthesis of GAs, fumonisins and fusarin C. Here, we present a deeper insight into the genome-wide regulatory impact of Lae1 on secondary metabolism. Over-expression of lae1 resulted in de-repression of GA biosynthetic genes under otherwise repressing high nitrogen conditions demonstrating that the nitrogen repression is overcome. In addition, over-expression of one of five tested histone acetyltransferase genes, HAT1, was capable of returning GA gene expression and GA production to the GA-deficient Δlae1 mutant. Deletion and over-expression of HAT1 in the wild type resulted in downregulation and upregulation of GA gene expression, respectively, indicating that HAT1 together with Lae1 plays an essential role in the regulation of GA biosynthesis.

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First evidence of ethylene production byFusarium mangiferaeassociated with mango malformation

Cited by 12 publications

References 19 publications

Mango (Mangifera indica L.) malformation: a malady of stress ethylene origin

Mango (Mangifera indica L.) malformation: a malady of stress ethylene origin

Fused lobed anther and hooked stigma affect pollination, fertilization and fruit set in mango

Analysis of the global regulator Lae1 uncovers a connection between Lae1 and the histone acetyltransferase HAT1 in Fusarium fujikuroi

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