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

Rani, Varsha; Ansari, Mohammad Wahid; Shukla, Alok; Tuteja, Narendra; Bains, G. S.

doi:10.4161/psb.23167

Cited by 9 publications

(13 citation statements)

References 19 publications

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“…There are indications that a number of abiotic and biotic factors are associated with the malady (Nailwal et al 2006). The malady has variously been ascribed to be acarological, viral, fungal and physiological in nature (Rani et al 2013). Recently, the association of 'F.…”

Section: Malformation and Its Etiologymentioning

confidence: 99%

“…During the development of floral malformation, primary, secondary and tertiary rachises become short, thick and hypertrophied with prominent nodes. Due to suppression of apical dominance, panicles become greener, heavier and highly branched (Kumar et al 1993) on which flowers are crowded, enlarged with thicker pedicels, calices and enlarged petals and stamens consisting of deformed reproductive organs (Rani et al 2013) (Fig. 1c) with respect to those of healthy panicles (Fig.…”

Section: Malformation and Its Etiologymentioning

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%

“…Ethylene takes part in termination of apical dominance, leading to more radial growth of rachis in malformed inflorescence (Singh and Dhillon 1989b stigma through poor stigmatic receptivity are essentially accountable for obstructing the germination of pollen and consequently growth of pollen tube. The aborted morphology of each and every reproductive organ in mango inflorescence is due to amplified level of endogenous level of ethylene, which lead to malfunction in fruit development in mango, and also the added load of cyanide, resulted from ethylene biosynthesis, contribute to the progression of necrosis which responsible for dehydration of anther and pistil during oversensitive reaction of plants (Rani et al 2013). Recently, a potential role of ethylene in floral malformation in mango was confirmed via its cross talk with purescine which could result in reduced malformation by mitigating the negative effects of ethylene in malformed mango flower (Singh et al 2014).…”

Section: Symptoms Of Malady Bear a Resemblance To Ethylene Effectsmentioning

confidence: 99%

“…Furthermore, the putative causal agents of mango malformation such as excessive soil moisture, mite infestation, fungal infection, virus, herbicides and other toxic compounds seem to add to the production of 'Stress ethylene' (Rani et al 2013). Recently, it has been reported that an augment in the endogenous ethylene level in malformed tissue under low temperature stress caused mango malformation (Ansari et al 2013a).…”

Section: Introductionmentioning

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: Malformation and Its Etiologymentioning

confidence: 99%

Section: Malformation and Its Etiologymentioning

confidence: 99%

Section: Malformation and Its Etiologymentioning

confidence: 99%

Section: Symptoms Of Malady Bear a Resemblance To Ethylene Effectsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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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Micromorphomics: A Morphological Dissection to Unveil Environmental Stress

Talukdar¹

2015

PlantOmics: The Omics of Plant Science

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First evidence of putrescine involvement in mitigating the floral malformation in mangoes: A scanning electron microscope study

et al. 2014

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Floral malformation is the most destructive disease in mangoes. To date, the etiology of this disease has not been resolved. There are indications that stress-stimulated ethylene production might be responsible for the disease. Putrescine mediates various physiological processes for normal functioning and cellular metabolism. Here, the effect of putrescine in concentration ranging from 10(-1) to 10(-3) M was evaluated on disease incidence during mango flowering seasons of 2012 and 2013. In a scanning electron microscopy (SEM) study, putrescine (10(-2) M)-treated malformed floral buds bloomed into opened flowers with separated sepals and/or petals like healthy, whereas the untreated (control) malformed buds remained deformed. Further, malformed flowers recovered upon putrescine treatment, displaying clearly bilobed anthers, enclosing a large number of normal pollen grains and functional ovary with broad stigmatic surface as compared to control. The present findings provide the first report to demonstrate the role of putrescine in reducing various adverse effects of stress ethylene via decelerating the higher pace of its biosynthesis. It stabilizes the normal morphology, development, and functions of malformed reproductive organs to facilitate successful pollination, fertilization, and, thereby, fruit set in mango flowers. However, putrescine-ethylene-mediated cell signaling network, involving various genes to trigger the response, which regulates a wide range of developmental and physiological processes leading to normal cell physiology, needs to be investigated further.

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

Cited by 9 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

Micromorphomics: A Morphological Dissection to Unveil Environmental Stress

First evidence of putrescine involvement in mitigating the floral malformation in mangoes: A scanning electron microscope study

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