Zinc highly potentiates the plant defense responses against Macrophomina phaseolina in mungbean

Shoaib, Amna; Abbas, Sana; Nisar, Zahra; Javaid, Arshad; Javed, Sundus

doi:10.1007/s11738-022-03358-x

Cited by 16 publications

(14 citation statements)

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“…inducing systemic resistance in the mungbean plant, assisted in the suppression of charcoal rot disease and improvement in morpho-physiological and yield-related traits (Khan et al, 2018;Shoaib et al, 2020Shoaib et al, , 2022. Finally, a reduction in the disease pressure may result in greater photosynthetic pigment and more production of effective antioxidant defense enzymes (e.g., SOD, CAT, POX, and PPO) in host plants.…”

Section: Discussionmentioning

confidence: 99%

“…However, the availability of low-quality seeds, high labor costs, and overall knowledge gap about mungbean’s effect on soil fertility are among the common constraints in mungbean cultivation in South Asia ( Rani et al, 2018 ). In addition to these constraints, pests and diseases also affected mungbean yield in Pakistan, with charcoal rot caused by Macrophomina phaseolina (Tassi) Goid known to significantly reduce crop yield ( Khan et al, 2018 ; Shoaib et al, 2022 ). M. phaseolina is one of the most destructive seed and soil-borne fungi present all over the world.…”

Section: Introductionmentioning

confidence: 99%

“…However, the high cost of chemical fungicides as well as their potentially harmful effects on all living beings destroy the theme of sustainable agriculture ( Meyer and Hausbeck, 2012 ). The application of micronutrient zinc (Zn) can give a revolutionary resolution to sustainable agriculture in an environment-friendly way against devastating charcoal rot in mungbean by tempting resistance in plants ( Shoaib et al, 2021 , 2022 ). Zn also plays a pivotal role in the metabolism of the plant, and nearly half of the crop-growing areas around the world have low plant-available Zn in their soils, with its deficiency estimated to reduce the Gross Domestic Product (GDP) of some developing countries by 2–11% ( Darnton-Hill et al, 2005 ).…”

Section: Introductionmentioning

confidence: 99%

“…Along this line, Zn acts as the first line of defense and strengthens the plant’s physical and mechanical properties, hence enhancing plant resistance against diseases ( Cabot et al, 2019 ). Zn-efficient genotypes have been found to impair plant production by reducing pathogen susceptibility ( Shoaib et al, 2020 , 2022 ). While the soil application of Zn fertilizers is an effective way to enhance plant resistance against diseases and sustain crop yield ( Cakmak, 2008 ).…”

Section: Introductionmentioning

confidence: 99%

“…The protective role of Zn against ROS has also been linked to reducing the production of membrane-bounded NADPH oxidase ( Shoaib et al, 2021 ). In many other studies, Zn has been recognized as a potential inhibitor of fungal pathogens like Fusarium graminearum , Penicillium citrinum , Aspergillus flavus ( Savi et al, 2013 ), Alternaria alternata ( Shoaib et al, 2021 ), and M. phaseolina ( Shoaib et al, 2020 , 2022 ). In these studies, the antifungal potential of Zn has been linked with disruption in the internal hydrostatic pressure of the fungal cell along with suppression in morpho-growth characteristics.…”

Section: Introductionmentioning

confidence: 99%

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Integrated management of charcoal rot disease in susceptible genotypes of mungbean with soil application of micronutrient zinc and green manure (prickly sesban)

et al. 2022

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Charcoal rot disease is incited by the soil-borne fungus Macrophomina phaseolina (Tassi). Goid is a challenging disease due to long-term persistence of fungus sclerotia in the soil. This study assessed the potential of zinc (Zn: 1.25, 2.44, and 5 mg/kg) and green manure (GM: 1 and 2%) in solitary and bilateral combinations to alleviate infection stress incited by M. phaseolina on disease, growth, physiology, and yield attributes in mungbean. A completely randomized design experiment was conducted in potted soil, artificially inoculated with the pathogen, and sown with surface-sterilized seeds of mungbean genotypes (susceptible: MNUYT-107 and highly susceptible: MNUYT-105). Concealment of plant resistance by M. phaseolina in both genotypes resulted in 53–55% disease incidence and 40–50% plant mortality, which contributed in causing a significant reduction of 30–90% in attributes of growth, biomass, yield, photosynthetic pigment, and total protein content with an imbalance of production of antioxidant enzymes (polyphenol oxidase, superoxide dismutase, catalase, and peroxidase). Soil application with Zn-based fertilizer (ZnSO4: 33%) in combination with GM significantly managed up to 80% of the charcoal rot disease, hence improving growth (50–100%) and physiochemical (30–100%) attributes and sustainably enhancing grain average yield (300–600%), biological yield (100–200%), and harvest index (100–200%) in mungbean plants. The heat map and principal component analyses based on 19 measured attributes with 16 treatments separated Zn (2.44 or 5 mg/kg) combined with 2% GM as the best treatments for alleviating charcoal rot disease stress by improving growth, yield, and biological attributes to an extent to profitable farming in terms of harvest index (HI) and benefit-cost ratio (BCR).

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Section: Discussionmentioning

confidence: 99%