Glucanolytic rhizobacteria associated with wheat- maize cropping system suppress the Fusarium wilt of tomato (Lycopersicum esculentum L)

Zia, Muhammad Atif; Riaz, Raheela; Batool, Asiya; Yasmin, Humaira; Nosheen, Asia; Naz, Rabia; Hassan, Muhammad Nadeem

doi:10.1016/j.scienta.2021.110275

Cited by 14 publications

(4 citation statements)

References 19 publications

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“…Ref. [ 160 ] isolated glucanase-producing rhizobacteria from wheat-maize cropping systems to decrease Fusarium wilt in tomatoes. A pH-, temperature- and salinity-stable chitinase is produced by a strain of B. subtilis induced by the pathogen Botrytis cinerea [ 161 ].…”

Section: Lytic Enzymes: Chitinase and β-13-glucanasementioning

confidence: 99%

Physiological Effects of Microbial Biocontrol Agents in the Maize Phyllosphere

Vanacore,

Sartori,

Giordanino

et al. 2023

Plants

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In a world with constant population growth, and in the context of climate change, the need to supply the demand of safe crops has stimulated an interest in ecological products that can increase agricultural productivity. This implies the use of beneficial organisms and natural products to improve crop performance and control pests and diseases, replacing chemical compounds that can affect the environment and human health. Microbial biological control agents (MBCAs) interact with pathogens directly or by inducing a physiological state of resistance in the plant. This involves several mechanisms, like interference with phytohormone pathways and priming defensive compounds. In Argentina, one of the world’s main maize exporters, yield is restricted by several limitations, including foliar diseases such as common rust and northern corn leaf blight (NCLB). Here, we discuss the impact of pathogen infection on important food crops and MBCA interactions with the plant’s immune system, and its biochemical indicators such as phytohormones, reactive oxygen species, phenolic compounds and lytic enzymes, focused mainly on the maize–NCLB pathosystem. MBCA could be integrated into disease management as a mechanism to improve the plant’s inducible defences against foliar diseases. However, there is still much to elucidate regarding plant responses when exposed to hemibiotrophic pathogens.

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Section: Lytic Enzymes: Chitinase and β-13-glucanasementioning

confidence: 99%

Physiological Effects of Microbial Biocontrol Agents in the Maize Phyllosphere

Vanacore,

Sartori,

Giordanino

et al. 2023

Plants

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“…Companion planting tomatoes with cilantro can increase tomato yield and reduce pests compared to tomato monoculture [28,58]. Therefore, the higher fruit fresh weight and lower R. solanacearum abundance in the intercropped tomato soil reported in previous studies may be caused by the ability of the plant-plant interaction to regulate root exudates and/or recruit beneficial microorganisms to suppress the pathogen [59][60][61][62]. All these results together support a previous study that suggested [63] the soil microbiome plays crucial roles in keeping bacterial R. solanacearum at bay.…”

Section: Discussionmentioning

confidence: 99%

Suppressing Ralstonia solanacearum and Bacterial Antibiotic Resistance Genes in Tomato Rhizosphere Soil through Companion Planting with Basil or Cilantro

Li,

Ou,

Ling

et al. 2024

Agronomy

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The effects of companion planting on soil antibiotic resistance genes (ARGs) and associated microbial composition have remained largely unclear until now. In this study, we assessed the changes in the soil microbiome and ARGs frequencies for tomato growing soils that were companion planted with basil (TB) or cilantro (TC) using a metagenome approach. The abundance of the phytopathogen Ralstonia solanacearum was significantly lower in the TC or TB treatments compared to the tomato monoculture soils (TT). A significant enrichment of Pseudomonas and Aquabacterium and a depletion of Nocardioides and Streptomyces were observed in the TC treatment. Interestingly, both TC and TB companion planting reduced the absolute abundance and the number of subtypes of ARGs. The TC soil showed the lowest numbers of unique ARG subtypes, especially the ARGs resistant to vancomycin and rifamycin, as well as those associated with multidrug resistance. Furthermore, network analysis further revealed that Nocardioides and Streptomyces were potential hosts of ARGs, whereas Flavobacterium negatively correlated with mdtG, suggesting a suppressive effect in reducing ARGs. Together, our results suggest that the companion planting of tomatoes with basil or cilantro can reduce the risk of ARG accumulation, making it a feasible farming management tool to promote soil and plant health in sustainable agriculture.

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“…Tomato vascular wilt, caused by Fusarium oxysporum f. sp. lycopersici ( Fol ), is one of the most destructive diseases, causing qualitative and quantitative losses (Atif et al 2021 ). Currently, several management strategies are available to control Fol , including the use of fungicides and plant-resistant varieties (Amini and Dzhalilov 2010 ).…”

Section: Introductionmentioning

confidence: 99%

Suppression of tomato wilt by cell-free supernatants of Acinetobacter baumannii isolates from wild cacao from the Colombian Amazon

Pisco-Ortiz,

González-Almario,

Uribe-Gutiérrez

et al. 2023

World J Microbiol Biotechnol

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Tomato vascular wilt caused by Fusarium oxysporum f. sp. lycopersici (Fol) is one of the most limiting diseases of this crop. The use of fungicides and varieties resistant to the pathogen has not provided adequate control of the disease. In this study, siderophore-producing bacteria isolated from wild cocoa trees from the Colombian Amazon were characterized to identify prominent strategies for plant protection. The isolates were taxonomically classified into five different genera. Eight of the fourteen were identified as bacteria of the Acinetobacter baumannii complex. Isolates CBIO024, CBIO086, CBIO117, CBIO123, and CBIO159 belonging to this complex showed the highest efficiency in siderophore synthesis, producing these molecules in a range of 91–129 µmol/L deferoxamine mesylate equivalents. A reduction in disease severity of up to 45% was obtained when plants were pretreated with CBIO117 siderophore-rich cell-free supernatant (SodSid). Regarding the mechanism of action that caused antagonistic activity against Fol, it was found that plants infected only with Fol and plants pretreated with SodSid CBIO117 and infected with Fol showed higher levels of PR1 and ERF1 gene expression than control plants. In contrast, MYC2 gene expression was not induced by the SodSid CBIO117 application. However, it was upregulated in plants infected with Fol and plants pretreated with SodSid CBIO117 and infected with the pathogen. In addition to the disease suppression exerted by SodSid CBIO117, the results suggest that the mechanism underlying this effect is related to an induction of systemic defense through the salicylic acid, ethylene, and priming defense via the jasmonic acid pathway. Graphical abstract

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Glucanolytic rhizobacteria associated with wheat- maize cropping system suppress the Fusarium wilt of tomato (Lycopersicum esculentum L)

Cited by 14 publications

References 19 publications

Physiological Effects of Microbial Biocontrol Agents in the Maize Phyllosphere

Physiological Effects of Microbial Biocontrol Agents in the Maize Phyllosphere

Suppressing Ralstonia solanacearum and Bacterial Antibiotic Resistance Genes in Tomato Rhizosphere Soil through Companion Planting with Basil or Cilantro

Suppression of tomato wilt by cell-free supernatants of Acinetobacter baumannii isolates from wild cacao from the Colombian Amazon

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