Endophytic Bacillus spp. from Zingiber zerumbet rhizome, rhizosphere and axenic cultures: characterisation and identification of isolates with plant growth promoting activities and antagonism to soft-rot causative Pythium myriotylum

Peter, Princy; Divakaran, Keerthi; Kaniyala, Harsha; Nair, Aswati R.

doi:10.1080/03235408.2021.1968269

Cited by 5 publications

(2 citation statements)

References 50 publications

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“…Jabborova et al [32] used dual inoculation (Bacillus endophyticus and Funneliformis mosseae) to improve the plant growth and soil properties of ginger. Endophytic Bacillus spp., which was isolated from Zingiber zerumbet rhizome, improves plant growthpromoting properties and antagonistic activity against Pythium myriotylum [33]. The present result and previous observations revealed that the rhizomeassociated endophytes showed a potent response to soft rot-causing pathogens and had biocontrol activity against P. myriotylum as these endophytic bacteria have the ability to produce extracellular enzymes and plant growth-promoting activities.…”

Section: Discussionsupporting

confidence: 75%

Plant growth‐promoting and biocontrol traits of endophytic Bacillus licheniformis against soft rot causing Pythium myriotylum in ginger plant

Alarjani,

Elshikh

2024

J Basic Microbiol

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Bacterial endophytes from plants harbor diverse metabolites that play major roles in biocontrol and improve plant growth. In this study, a total of 12 endophytic bacteria were isolated from the ginger rhizome. The strain K3 was highly effective in preventing mycelia growth of Pythium myriotylum (78.5 ± 1.5% inhibition) in dual culture. The cell‐free extract (2.5%) of endophyte K3 inhibited 76.3 ± 4.8% mycelia growth, and 92.4 ± 4.2% inhibition was observed at a 5% sample concentration. The secondary metabolites produced by Bacillus licheniformis K3 showed maximum activity against Pseudomonas syringae (24 ± 1 mm zone of inhibition) and Xanthomonas campestris (28 ± 3 mm zone of inhibition). The strain K3 produced 28.3 ± 1.7 IU mL−1 protease, 28.3 ± 1.7 IU mL−1 cellulase, and 2.04 ± 0.13 IU mL−1 chitinase, respectively. The ginger rhizome treated with K3 in the greenhouse registered 53.8 ± 1.4% soft rot incidence, and the streptomycin‐treated pot registered 78.3 ± 1.7% disease incidence. The selected endophyte K3 improved ascorbate peroxidase (1.37 ± 0.009 µmole ASC min−1 mg−1 protein), catalase (8.7 ± 0.28 µmole min−1 mg−1 protein), and phenylalanine ammonia‐lyase (26.2 ± 0.99 Umg−1) in the greenhouse. In addition, K3 treatment in the field trial improved rhizome yield (730 ± 18.4 g) after 180 days (p < 0.01). The shoot length was 46 ± 8.3 cm in K3‐treated plants, and it was about 31% higher than the control treatment (p < 0.01). The lytic enzyme‐producing and growth‐promoting endophyte is useful in sustainable crop production through the management of biotic stress.

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Section: Discussionsupporting

confidence: 75%

Plant growth‐promoting and biocontrol traits of endophytic Bacillus licheniformis against soft rot causing Pythium myriotylum in ginger plant

Alarjani,

Elshikh

2024

J Basic Microbiol

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“…Lebih lanjut dilaporkan bahwa bakteri endofit juga mampu berperan sebagai agens pengendali hayati karena mampu menghasilkan enzim ekstraseluler yang dapat berperan melindungi benih dari patogen terbawa benih (Li et al, 2020;Khan et al, 2020). Selain itu, rizobakteri juga dilaporkan mampu berperan sebagai agens pengendali hayati (Ilyas et al, 2015;Peter et al, 2021;Abo-Elyousr, et al, 2021;Zafar et al, 2021)…”

Section: Kct-r =unclassified

Efektivitas Bio-matriconditioning Benih Pratanam dengan Campuran Endo-rizobakteri dalam Meningkatkan Viabilitas dan Vigor Benih Cabai (Capsicum annuum L.)

et al. 2022

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Penggunaan benih bermutu tinggi merupakan prasyarat penting dalam budidaya tanaman agar dihasilkan tanaman yang mampu berproduksi secara optimal. Penelitian ini bertujuan mengevaluasi efektivitas perlakuan bio-matriconditioning pratanam menggunakan campuran endo-rizobakteri dalam meningkatkan viabilitas dan vigor benih cabai. Penelitian ini dilaksanakan di Laboratorium Agroteknologi Unit Agronomi pada bulan Maret sampai dengan April 2021. Penelitian disusun menggunakan rancangan acak lengkap yang terdiri atas 8 perlakuan dengan 3 ulangan. Data hasil pengamatan ditabulasi dan dianalisis dengan menggunakan analisis varian, hasil analisis yang menunjukkan pengaruh nyata dilanjutkan dengan uji Duncan Multiple Range Test α=0,05. Pengamatan terhadap viabilitas dan vigor benih cabai menggunakan peubah daya berkecambah, potensi tumbuh maksimum, indeks vigor, keserempakan tumbuh, kecepatan tumbuh relatif, T50, bobot kering kecambah normal dan laju pertumbuhan kecambah. Hasil penelitian menunjukkan bahwa perlakuan bio-matriconditioning benih pratanam mampu meningkatkan viabilitas dan vigor benih cabai. Perlakuan bio-matriconditioning benih dengan campuran isolat Bacillus sp. CKD061 + Pseudomonas sp. SWRIIB02 memberikan hasil terbaik terhadap viabilitas dan vigor benih, kemudian diikuti perlakuan bio-matriconditioning benih dengan campuran isolat Bacillus sp. CKD061 + Pseudomonas sp. SWRIIB02 + Pseudomonas sp. PG01. Peningkatan vigor benih (menggunakan indikator daya berkecambah) pada perlakuan tersebut masing-masing mencapai 100% dan 81% dibandingkan dengan kontrol.

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Ginger rhizome priming with lipopeptide-producing endophytic Bacillus species to control ginger soft-rot disease caused by Pythium myriotylum

2023

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Endophytic Bacillus spp. from Zingiber zerumbet rhizome, rhizosphere and axenic cultures: characterisation and identification of isolates with plant growth promoting activities and antagonism to soft-rot causative Pythium myriotylum

Cited by 5 publications

References 50 publications

Plant growth‐promoting and biocontrol traits of endophytic Bacillus licheniformis against soft rot causing Pythium myriotylum in ginger plant

Plant growth‐promoting and biocontrol traits of endophytic Bacillus licheniformis against soft rot causing Pythium myriotylum in ginger plant

Efektivitas Bio-matriconditioning Benih Pratanam dengan Campuran Endo-rizobakteri dalam Meningkatkan Viabilitas dan Vigor Benih Cabai (Capsicum annuum L.)

Ginger rhizome priming with lipopeptide-producing endophytic Bacillus species to control ginger soft-rot disease caused by Pythium myriotylum

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