Continuous and emerging challenges of silver scurf disease in potato

Tiwari, Rahul Kumar; Kumar, Ravinder; Sharma, Sanjeev; Naga, Kailash Chandra; Subhash, S.; Sagar, Vinay

doi:10.1080/09670874.2020.1795302

Cited by 30 publications

(11 citation statements)

References 56 publications

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“…Due to the fact that thermotolerance is a multigenic trait, it is imperative that appropriate methods be utilized in order to evaluate the genetic diversity in both inherent and acquired tolerance [ 136 , 137 ]. Due to their resilience to pests and diseases and their ability to adapt to harsh climates, wild potato species are of great interest to potato breeders [ 138 ]. Wild potato species inhabit a wide variety of settings and could be anticipated to have varying genetic degrees of stress tolerance [ 137 ].…”

Section: Approaches For Adaptation Of Potato Plantmentioning

confidence: 99%

Mechanistic Concept of Physiological, Biochemical, and Molecular Responses of the Potato Crop to Heat and Drought Stress

Lal

Tiwari

Kumar

et al. 2022

Plants

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Most cultivated potatoes are tetraploid, and the tuber is the main economic part that is consumed due to its calorific and nutritional values. Recent trends in climate change led to the frequent occurrence of heat and drought stress in major potato-growing regions worldwide. The optimum temperature for tuber production is 15–20 °C. High-temperature and water-deficient conditions during the growing season result in several morphological, physiological, biochemical, and molecular alterations. The morphological changes under stress conditions may affect the process of stolon formation, tuberization, and bulking, ultimately affecting the tuber yield. This condition also affects the physiological responses, including an imbalance in the allocation of photoassimilates, respiration, water use efficiency, transpiration, carbon partitioning, and the source–sink relationship. The biochemical responses under stress conditions involve maintaining ionic homeostasis, synthesizing heat shock proteins, achieving osmolyte balance, and generating reactive oxygen species, ultimately affecting various biochemical pathways. Different networks that include both gene regulation and transcription factors are involved at the molecular level due to the combination of hot and water-deficient conditions. This article attempts to present an integrative content of physio-biochemical and molecular responses under the combined effects of heat and drought, prominent factors in climate change. Taking into account all of these aspects and responses, there is an immediate need for comprehensive screening of germplasm and the application of appropriate approaches and tactics to produce potato cultivars that perform well under drought and in heat-affected areas.

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Section: Approaches For Adaptation Of Potato Plantmentioning

confidence: 99%

Mechanistic Concept of Physiological, Biochemical, and Molecular Responses of the Potato Crop to Heat and Drought Stress

Lal

Tiwari

Kumar

et al. 2022

Plants

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“…Other notable diseases mentioned include potato silver scurf caused by Helminthosporium solani , Rhizoctonia solani complex disease, and early blight caused by Alternaria solani . Each of these diseases can have a detrimental impact on potato production, leading to reduced yields and compromised tuber quality ( Tomilova et al, 2020 ; Gorai et al, 2021 ; Tiwari et al, 2022 ).…”

Section: Plant Diseasesmentioning

confidence: 99%

Streptomyces as a promising biological control agents for plant pathogens

Khan,

Srivastava,

Karnwal

et al. 2023

Front. Microbiol.

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Plant diseases caused by pathogenic microorganisms in agriculture present a considerable obstacle, resulting in approximately 30–40% crop damage. The use of conventional techniques to manage these microorganisms, i.e., applying chemical pesticides and antimicrobials, has been discovered to have adverse effects on human health and the environment. Furthermore, these methods have contributed to the emergence of resistance among phytopathogens. Consequently, it has become imperative to investigate natural alternatives to address this issue. The Streptomyces genus of gram-positive bacteria is a potentially viable natural alternative that has been extensively researched due to its capacity to generate diverse antimicrobial compounds, such as metabolites and organic compounds. Scientists globally use diverse approaches and methodologies to extract new bioactive compounds from these bacteria. The efficacy of bioactive compounds in mitigating various phytopathogens that pose a significant threat to crops and plants has been demonstrated. Hence, the Streptomyces genus exhibits potential as a biological control agent for combating plant pathogens. This review article aims to provide further insight into the Streptomyces genus as a source of antimicrobial compounds that can potentially be a biological control against plant pathogens. The investigation of various bioactive compounds synthesized by this genus can enhance our comprehension of their prospective utilization in agriculture.

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“…Potato breeders' major goal is to increase yield and nutrient quality while limiting field losses due to pests' infection, diseases, and harsh environmental conditions. Potato production losses and decline in nutritional value are caused by a variety of factors, including pre-and post-harvest handling, frost, heavy rainfall fields, and storage disease [2]. More than 40 diseases, including bacteria, viruses, fungi, nematodes, and pests cause harm to potato foliar portions and tubers [3].…”

Section: Introductionmentioning

confidence: 99%

Metabolites Composition of Bacillus subtilis HussainT-AMU Determined by LC-MS and Their Effect on Fusarium Dry Rot of Potato Seed Tuber

Hussain¹,

Khan²,

Mohamed³

2023

Phyton

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Fusarium dry rot is considered to be the most critical soilborne and postharvest disease that damages potato tubers worldwide when they are stored for a long time. This study was performed to demonstrate the effect of crude extract, culture filtrate, and cell suspension obtained from the bacterium Bacillus subtilis Hussain T-AMU, on the net house and field. From oil-contaminated soil, through the serial dilution method, biosurfactant bacteria were isolated on nutrient agar medium. To isolate and screen the prospective biosurfactant strain, various biosurfactant screening methods were used. Standard protocols were carried out for morphological, molecular, and chemical characterization. The disease incidences were significantly decreased under net house and field conditions after treatment with biosurfactant extract (20%, 70%), culture filtrate (23%, 49%), and bacterial cell suspension (46%, 27%), respectively. These results indicate a significant effect of B. subtilis HussainT-AMU against Fusarium oxysporum. The characterization of the partially purified extract by gas-chromatography indicated the existence of a high amount of methyl ester fatty acids. The quantitative analysis determined the presence of lipopeptide-surfactin, fengycin, and iturin in the biosurfactant extract. Scanning electron microscopy revealed that morphological variation was revealed in the structure of stomata size in leaves and in the mycelia of the pathogen that was investigated. This promising biocontrol agent can be a plausible option for further research and can also be used for the production of green biomolecules at an additional industrial level.

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Continuous and emerging challenges of silver scurf disease in potato

Cited by 30 publications

References 56 publications

Mechanistic Concept of Physiological, Biochemical, and Molecular Responses of the Potato Crop to Heat and Drought Stress

Mechanistic Concept of Physiological, Biochemical, and Molecular Responses of the Potato Crop to Heat and Drought Stress

Streptomyces as a promising biological control agents for plant pathogens

Metabolites Composition of Bacillus subtilis HussainT-AMU Determined by LC-MS and Their Effect on Fusarium Dry Rot of Potato Seed Tuber

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