Effects of potassium application on soil ecological resistance to Verticillium wilt of cotton (<i>Gossypium hirsutum</i> L.)

Ju, Feiyan; Yan, Li; Xihe, Zhang; Yu, Kai; Huo, Yuyang; Zhu, Junjun; Wang, Youhua; Zhou, Zhiguo; Ali, Saif; Tang, Qingfeng; Chen, Binglin

doi:10.1080/03650340.2020.1841173

Cited by 8 publications

(7 citation statements)

References 51 publications

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“…Due to the stable dormant structure microsclerotia, long-term variability, and coevolution with host plants ( Ju et al, 2020 ; Höfer et al, 2021 ; Starke et al, 2021 ), controlling the spread of Verticillium wilt in plants remains challenging using currently available methods, such as chemical control, genetic breeding, and optimization of the cropping pattern ( Ostos et al, 2020 ; Ramirez-Gil and Morales-Osorio, 2021 ; Zhang Y. L. et al, 2021 ). Disease resistance breeding is limited by a long breeding cycle and a lack of natural resistance resources, and chemical control has no beneficial effect on the control of soil-borne diseases ( Diaz-Rueda et al, 2021 ; Hanika et al, 2021 ; Sunico et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Antifungal effects of volatile organic compounds produced by Trichoderma koningiopsis T2 against Verticillium dahliae

Kong

Wang

et al. 2022

Front. Microbiol.

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Volatile organic compounds (VOCs) produced by microorganisms are considered promising environmental-safety fumigants for controlling soil-borne diseases. Verticillium dahliae, a notorious fungal pathogen, causes economically important wilt diseases in agriculture and forestry industries. Here, we determined the antifungal activity of VOCs produced by Trichoderma koningiopsis T2. The VOCs from T. koningiopsis T2 were trapped by solid-phase microextraction (SPME) and tentatively identified through gas chromatography–mass spectrometry (GC/MS). The microsclerotia formation, cell wall-degrading enzymes and melanin synthesis of V. dahliae exposed to the VOC mixtures and selected single standards were examined. The results showed that the VOCs produced by strain T2 significantly inhibited the growth of V. dahliae mycelium and reduced the severity of Verticillium wilt in tobacco and cotton. Six individual compounds were identified in the volatilome of T. koningiopsis T2, and the dominant compounds were 3-octanone, 3-methyl-1-butanol, butanoic acid ethyl ester and 2-hexyl-furan. The VOCs of strain T2 exert a significant inhibitory effect on microsclerotia formation and decreased the activities of pectin lyase and endo-β-1,4-glucanase in V. dahliae. VOCs also downregulated the VdT3HR, VdT4HR, and VdSCD genes related to melanin synthesis by 29. 41-, 10. 49-, and 3.11-fold, respectively. Therefore, T. koningiopsis T2 has potential as a promising biofumigant for the biocontrol of Verticillium wilt disease.

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Section: Introductionmentioning

confidence: 99%

Antifungal effects of volatile organic compounds produced by Trichoderma koningiopsis T2 against Verticillium dahliae

Kong

Wang

et al. 2022

Front. Microbiol.

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“…Recently it has been reported that application of incremental amounts of K fertilization shape communities functionality in tobacco root systems (Lu et al 2022). Similarly, the addition of K 2 O has been observed to modify the root exudations of cotton, changing the composition of its root bacterial communities and reducing the biotic stress induced by Verticillium spp (Ju et al 2022).…”

Section: Discussionmentioning

confidence: 99%

Diversity, community structure and potential functions of root-associated bacterial communities of different wheat (Triticum aestivum) cultivars under field conditions

Acuña¹,

Rilling

Inostroza³

et al. 2022

Preprint

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Aim Wheat (Triticum aestivum) microbiome is essential to its growth and adaptation under the current climatic crisis. Wheat breeding programs are mainly focused on developing pest and stress resistant cultivars; thus, plant genotype-by-microbiome interactions have gained attention. Thus, local wheat cultivars represent an opportunity to examine recruited and supporting bacterial communities under field conditions. Method In this study, we used Illumina MiSeq to explore the diversity, community structure and potential functions of root-associated bacterial communities of four wheat cultivars under field conditions. Results Proteobacteria was the most abundant phylum in root endosphere (51.1 to 74.4%) and rhizosphere samples (39.3 to 44.9%) across cultivars. Differences in alpha and beta diversity were observed in root endosphere and rhizosphere, independently of cultivar. Potassium was identified as the main factor driving rhizosphere microbiomes of wheat. Higher proportion of shared OTUs were found in rhizosphere (mainly Pseudomonas, Flavobacterium, and Janthinobacterium) compared with root-endosphere (dominated by Delftia, Acinetobacter, Stenotrophomonas, Kaistobacter) across cultivars. General predicted functional activities revealed chemoheterotrophy and aerobic chemoheterotrophy as more observed in the root endosphere environment, whereas nitrogen cycling was the more predicted in rhizosphere. Co-occurrence analysis revealed complex bacterial interactions in niche microbiomes identifying three (Comamonadaceae, Enterobacteraceae, Micrococcaceae) and four (Corynebacteraceae, Dermabacteraceae, Xanthomonadaceae, Staphylococcaceae) families as keystone taxa for root endosphere and rhizosphere, respectively. Conclusions Our findings suggest that under the same field conditions community differences are driven by niche, rather than cultivar. This might contribute to the development of new cultivars able to recruit specific bacterial communities.

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“…Wilts in pigeon pea, banana, pea, and wheat can be minimized by organic amendment. Similarly, the application of potassium helps to manage the wilts in cotton (Ju et al, 2022).…”

Section: Preventive Measuresmentioning

confidence: 99%

Interplay of plant pathogens and host defenses: Unveiling the mechanisms and strategies for crop protection

Poudel,

2024

Arch. Agric. Environ. Sci.

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Plant pathogens, encompassing a diverse array of microbes including fungi, nematodes, protozoa, bacteria, and viruses, represent a significant threat to agricultural stability by compromising plant health. These microorganisms engage in a complex battle against plant immune systems, leading to diseases that can drastically diminish crop yields, degrade product quality, and in extreme cases, cause total crop failure. A comprehensive understanding of the mechanisms underlying plant infection, the specific pathogens involved, and the strategy for effective prevention is crucial for agricultural sustainability. This review paper provides a detailed examination of the multifaceted interactions between plant pathogens and their hosts, focusing on the entry mechanisms, symptom development, and prevention strategies against plant diseases. Major findings reveal the intricate ways pathogens interact with plant immune responses, the critical role of environmental factors in disease outbreaks, and the effectiveness of integrated disease management approaches. The paper concludes with a novel perspective, emphasizing the urgent need for sustainable, science-based strategies to enhance plant resistance, safeguard food security, and mitigate the economic consequences of plant pathogenic diseases. This synthesis not only advances our understanding of plant pathology but also sets a framework for future research directions in plant disease management.

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Effects of potassium application on soil ecological resistance to Verticillium wilt of cotton (Gossypium hirsutum L.)

Cited by 8 publications

References 51 publications

Antifungal effects of volatile organic compounds produced by Trichoderma koningiopsis T2 against Verticillium dahliae

Antifungal effects of volatile organic compounds produced by Trichoderma koningiopsis T2 against Verticillium dahliae

Diversity, community structure and potential functions of root-associated bacterial communities of different wheat (Triticum aestivum) cultivars under field conditions

Interplay of plant pathogens and host defenses: Unveiling the mechanisms and strategies for crop protection

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