Effect of malformation on changes in endogenous gibberellins and cytokinins during floral development of mango

Bist, L.D.; Ram, Shobha Sundar

doi:10.1016/0304-4238(86)90005-1

Cited by 10 publications

(4 citation statements)

References 9 publications

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“…Similarly, exogenous application of GA 3 enhanced the early flowering and improved the number of healthy panicles and resulted into the reduced incidence of floral malformation 18 , 19 . The number, nature, and kind of cytokinins varied in healthy and malformed inflorescence during different developmental stages were studied and cytokinin content was detected to be elevated in malformed inflorescence with respect to healthy ones 18 . The higher infection of Fusaium and the malformation symptoms were explained to be mediated via consequence of cytokinin production and metabolism 20 , 21 .…”

Section: Discussionmentioning

confidence: 99%

In vitro: Response of plant growth regulators and antimalformins on conidia germination ofFusarium mangiferaeand incidence of mango malformation

Ansari

Tula

Shukla

et al. 2013

Communicative & Integrative Biology

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Mango malformation is the most important and threatening disease of recent times, primarily because of persistent lacuna in complete understanding of its nature. Diverse Fusarium spp, including F. mangiferae, were found to be associated with the disease. Here, F. mangiferae from mango cv Dashehri was morphologically characterized. Typically, oval-shaped microconidia without septum and crescent-shaped macroconidia with 3-septate were more often observed, whereas not a single chlamydospore was detected. The length and width of micro- and macro-conidia were 7.5, 55, 3.2, and 3.5, respectively. The plant growth regulators such as NAA, GA3, BAP and ethrel were found to induce in vitro germination of conidia of F. mangiferae after 12 h. In contrast, antimalformin silver nitrate (AgNO3) inhibits conidial germination in vitro and none of conidia was germinated beyond 500 ppm, however antimalformin glutathione was highly effective in stimulating conidial germination of F. mangiferae in vitro at > 1000 ppm after 24 h. We observed that the response of F. mangiferae to germinate the conidia in vitro under influence of plant growth regulators and antimalformins is not coincided with earlier findings of reduced disease incidence by exogenous application of these compounds. The present findings do not authenticate the involvement of F. mangiferae in the disease, however hormonal imbalance, most probably ethylene, might be responsible for deformed functional morphology of panicle. Further, a signal transduction mechanism of stress-stimulated ethylene imbalance causing physio-morphological changes in reproductive organs of mango flower and thereby failure of fertilization and fruit set, which needs to be investigated.

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Section: Discussionmentioning

confidence: 99%

In vitro: Response of plant growth regulators and antimalformins on conidia germination ofFusarium mangiferaeand incidence of mango malformation

Ansari

Tula

Shukla

et al. 2013

Communicative & Integrative Biology

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“…PPO, defined as responsible for the synthesis of phenolic compounds in vivo, is considered a secondary metabolite (Bist and Ram 1986). The organic matter represented in the manures and fertilizers are used every year to produce new vegetative growth as well as the subsequent flowering and fruiting process in regular carriers, while these materials are kept in the "off" year of the alternate carriers (Kvas et al 2008).…”

Section: Abdelatey Ayman Nazmy Samahmentioning

confidence: 99%

Effect of some growth regulators and systemic copper complexes on reducing floral malformation, yield and quality of "Alphonse" mango (Mangifera indica L. )

حديد¹,

الغني²,

Nasr

et al. 2021

Arab Universities Journal of Agricultural Sciences

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The present study was carried out during 2019 and 2020 seasons on Alphonse mango trees to evaluate the effect of some growth regulators and systemic copper complexes on floral malformation, yield and quality. Vegetative growth characters were superior with 200 NAA ppm and 100 ppm cofret. However, total chlorophyll, total carbohydrates and C/N ratio recorded the highest values with 200 ppm NAA. Macro elements N, P, K and Mg % were higher with GA3 at 100 ppm, whereas the highest values of micro elements Fe, Zn, Mn and Cu (ppm) were obtained with perfecto-one at 100 ppm. The number of total panicles/tree was increased with NAA 200 ppm and perfecto-one 100 ppm treatments than other treatments. The number and percent of malformed panicles/tree were significantly decreased with the applied treatments than in control.. An increasing in total indoles, total phenols and polyphenol oxidase activity were recorded with 200 ppm NAA and 100 ppm perfecto-one treatments than in others. Final fruit set% and the number of fruits /tree were increased with the treatments of 200 ppm NAA and 100 ppm perfecto-one. However, the highest values of fruit weight were recorded by GA3 and perfecto-one both at100 ppm treatments, whereas the highest yield/tree values were recorded by NAA 200 ppm and 100 ppm perfectoone. Finally, fruit quality involved TSS, acidity, L-ascorbic acid, total sugars and total carotenoids were greatly improved with the applied treatments than in control.

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“…Smokes elevate both temperature and carbon dioxide which in turn mitigates ethylene production (Abeles and Abeles 1973). Further, treatment of malformed panicles with 600 ppm AgNO 3 helped plants to bear normal panicles with fruits borne on them (Bist and Ram 1986;Ansari et al 2013b). The cause may undoubtedly be due positive regulation of Ag + towards ethylene action .…”

Section: Mango Malformation Can Be Reduced By Regulating the Ethylenementioning

confidence: 99%

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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Effect of malformation on changes in endogenous gibberellins and cytokinins during floral development of mango

Cited by 10 publications

References 9 publications

In vitro: Response of plant growth regulators and antimalformins on conidia germination ofFusarium mangiferaeand incidence of mango malformation

In vitro: Response of plant growth regulators and antimalformins on conidia germination ofFusarium mangiferaeand incidence of mango malformation

Effect of some growth regulators and systemic copper complexes on reducing floral malformation, yield and quality of "Alphonse" mango (Mangifera indica L. )

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

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