Endophytic Microbes and Their Role in Plant Health

Krishnappa, Charishma; Kavya, B. S.; Kumar, Hemant; Reddy, P. R.; Rao, G. R.; Darshan, K

doi:10.1007/978-981-99-0030-5_12

Cited by 1 publication

(1 citation statement)

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“…Important mechanisms such as biofertilization and phytostimulation involved in growth promotion and biocontrol activity against disease suppression have been reported. There is increasing scope to use these endophytes for disease suppression and plant growth promotion (Krishnappa et al 2023 ). Endophytes are planted colonizing microorganisms in a mutualistic symbiosis relationship for plant growth by stimulating the production of plant hormones, such as auxins, or as plant protective agents against microbial pathogens, but are eco-friendly and safe (Rashad et al 2022 ).…”

Section: Introductionmentioning

confidence: 99%

In vivo application of potent probiotics for enhancing potato growth and controlling Ralstonia solanacearum and Fusarium oxysporum infections

Abdel-Moghies,

El-Sehrawy,

Zakaria

et al. 2024

Antonie van Leeuwenhoek

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Plant probiotics are live microbial cells or cultures that support plant growth and control plant pathogens through different mechanisms. They have various effects on plants, including plant growth promotion through the production of indole acetic acid (IAA), biological control activity (BCA), and production of cellulase enzymes, thus inducing systemic resistance and increasing the availability of mineral elements. The present work aimed to study the potential of Achromobacter marplatensis and Bacillus velezensis as plant probiotics for the field cultivation of potatoes. In vitro studies have demonstrated the ability of selected probiotics to produce IAA and cellulase, as well as antimicrobial activity against two plant pathogens that infect Solanum tuberosum as Fusarium oxysporum and Ralstonia solanacearum under different conditions at a broad range of different temperatures and pH values. In vivo study of the effects of the probiotics A. marplatensis and B. velezensis on S. tuberosum plants grown in sandy clay loamy soil was detected after cultivation for 90 days. Probiotic isolates A. marplatensis and B. velezensis were able to tolerate ultraviolet radiation (UV) exposure for up to two hours, the dose response curve exhibited that the D10 values of A. marplatensis and B. velezensis were 28 and 16 respectively. In the case of loading both probiotics with broth, the shoot dry weight was increased significantly from 28 in the control to 50 g, shoot length increased from 24 to 45.7 cm, branches numbers increased from 40 to 70 branch, leaves number increased from 99 to 130 leaf, root dry weight increased from 9.3 to 12.9 g, root length increased from 24 to 35.7 cm, tuber weight increased from 15 to 37.0 g and tubers number increased from 9 to 24.4 tuber, the rot percentage was reduced to 0%. The addition of both probiotic isolates, either broth or wheat grains load separately has enhanced all the growth parameters; however, better results and increased production were in favor of adding probiotics with broth more than wheat. On the other hand, both probiotics showed a remarkable protective effect against potato pathogens separately and reduced the negative impact of the infection using them together.

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Section: Introductionmentioning

confidence: 99%