Effect of '<i>Azotobacter</i>' Bioinoculant on the Growth and Substrate Utilization Potential of<i>Pleurotus eous</i>Seed Spawn

Eyini, M.; Parani, K.; Pothiraj, C.; Rajapandy, V.

doi:10.4489/myco.2005.33.1.019

Cited by 7 publications

(4 citation statements)

References 4 publications

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“…Notably, some isolates in the study showed negative or no effect on the mushroom growth which could be due to the interaction between bacteria and fungi [6]. Our results are in agreement with previous studies, which have suggested the growth stimulatory role of bacteria [32]. Similar investigations of positive interaction were also reported during cocultivation of white-rot fungus P. florida and a fluorescent pseudomonas bacterium [16].…”

Section: Discussionsupporting

confidence: 92%

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Enhanced growth and yield of oyster mushroom by growth‐promoting bacteria Glutamicibacter arilaitensis MRC119

Kumari

Naraian

2020

J Basic Microbiol

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Promotion of mushroom growth by means of biological agents replacing chemicals is an emerging and highly demanded issue in the sector of mushroom cropping. The present study was aimed to search for a novel bacterium potentially able to enhance mushroom growth and yield. A total of 2165 bacterial isolates purified from different samples were scrutinized through various growth‐promoting attributes. As a consequence of rigorous screening, 26 isolates found exhibiting positive traits of mushroom growth promotion. Thereafter, in response to the cocultivation (fungus and bacteria), a potent bacterial strain was isolated capable to improve significantly the mycelial growth. In cocultivation the highest radial and linear growth rate was 7.6 and 8.1 mm/day on 10th and 11th days, respectively. The fruitbody yields and biological efficiency (BE) of the inoculated sets were 28% and 58% higher than the uninoculated control sets. The bacterium was molecularly identified based on 16S ribosomal RNA sequencing and confirmed as Glutamicibacter arilaitensis MRC119. Therefore, the bioinoculant of the current bacterium can be potentially useful as an ecofriendly substitute stimulating the production of mushroom fruit bodies with improved BE.

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Section: Discussionsupporting

confidence: 92%

“…In a distinct study, Azotobacter sp. synergistically increased the linear growth of oyster mushroom P. eous [32]. Kim et al [17] reported that Pseudomonas sp.…”

Section: Discussionmentioning

confidence: 99%

Enhanced growth and yield of oyster mushroom by growth‐promoting bacteria Glutamicibacter arilaitensis MRC119

Kumari

Naraian

2020

J Basic Microbiol

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“…After co-cultivation, the bacteria enhanced both radial and linear mycelial growth of P. orida. Eyini et al (2005) found that a low concentration (2mL/bottle) of fermentation broth of the nitrogen-xing bacterium Azotobacter can stimulate (18.28%) the mycelial growth of P. eous in spawn material, whereas a high concentration of the broth (10mL/bottle) inhibited the activity. Here, in submerged fermentation, all three isolates in uenced the mycelial growth rate, as evidenced by increased mycelial dry weight.…”

Section: Discussionmentioning

confidence: 99%

Study of growth-improving and sporophore-inducing endobacteria isolated from Pleurotus pulmonarius

Paul,

Roy,

Singh

et al. 2023

World J Microbiol Biotechnol

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Several Pleurotusspecies (oyster mushrooms) are commercially cultivated in India owing to the favorable tropical agro-climatic conditions. However, there are only a few studies on the microbiome of mushrooms, especially oyster mushrooms. The aim of this study was to assess the effect of endophytic bacteria on mycelial growth, spawning, sporophore development, and proximate composition of P. pulmonarius. We isolated several bacterial strains from the sporophores of P. pulmonarius and assessed the in vitro production of indole acetic acid, ammonia, and siderophores. The selected bacteria were individually supplemented with spawn, substrate, or both for sporophore production. Three of 130 isolates were selected as mycelial growth-promoting bacteria in both solid and submerged fermentation. These bacterial isolates were identi ed through Gram staining, biochemical characterization, and 16S rRNA sequencing. Isolate PP showed 99.24% similarity with Priestia para exa, whereas isolates PJ1 and PJ2 showed 99.78% and 99.65% similarities, respectively, with Rossellomorea maris avi. The bacterial supplementation with spawn, substrate, or both, increased the biological e ciency (BE) and nutrient content of the mushrooms. The bacterial supplementation with substrate augmented BE by 64.84%, 13.73%, and 27.13% using PJ2, PP, and PJ1, respectively; under similar conditions of spawn supplementation, BE wasincreased by 15.24%, 47.03%, 48.10%, respectively. Overall, the supplementation of endophytic bacteria to improve oyster mushroom cultivation may open a new avenue for sustainable agricultural practices in the mushroom industry.

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“…Table 1 lists the various substrate combinations designed for each Pleurotus spp. These amended substrates along with subsequent layers of mushroom grain spawn (10 % of dry weight) and 5 ml Azotobacter broth (pH = 7; cfu ~ 10 8 cells/ml), taken in place of gram powder as a source of nitrogen (Eyini et al 2005 ), were filled in the polythene bags (28 cm × 20 cm). Holes were made in these polythene bags for proper aeration.…”

Section: Methodsmentioning

confidence: 99%

Feasibility of dairy waste water (DWW) and distillery spent wash (DSW) effluents in increasing the yield potential of Pleurotusflabellatus (PF 1832) and Pleurotus sajor-caju (PS 1610) on bagasse

et al. 2012

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In the present investigation, feasibility of dairy waste water (DWW) and distillery spent wash (DSW) effluents in increasing the growth and yield of two species of oyster mushroom, Pleurotus flabellatus (PF 1832) and P. sajor-caju (PS 1610) on abundantly available agro-waste, bagasse, was evaluated. Three different levels of treatments were applied for each effluent. The effects of amendments on the result were observed in terms of yield, biological efficiency (BE) and substrate dry-matter loss. BE was found to be the highest (66.63 ± 1.0 %) for P. sajor-caju grown on bagasse amended with 10 % DWW and lowest for Pleurotus controls. While P. sajor-caju performed better on bagasse amended with DWW, P. flabellatus was more suited to grow on DSW amended bagasse. Degradation of complex molecules was in accordance with substrate dry-matter loss and the respective yields. The biochemical analysis of mushroom fruit bodies showed them to be a rich source of protein (maximum 36.40 %) and sugars (maximum 41.58 %). The study thus proved to be beneficial for effective management of the waste by employing higher order fungi as well as obtaining nutrient-rich delicacy for the mass.

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Effect of 'Azotobacter' Bioinoculant on the Growth and Substrate Utilization Potential ofPleurotus eousSeed Spawn

Cited by 7 publications

References 4 publications

Enhanced growth and yield of oyster mushroom by growth‐promoting bacteria Glutamicibacter arilaitensis MRC119

Enhanced growth and yield of oyster mushroom by growth‐promoting bacteria Glutamicibacter arilaitensis MRC119

Study of growth-improving and sporophore-inducing endobacteria isolated from Pleurotus pulmonarius

Feasibility of dairy waste water (DWW) and distillery spent wash (DSW) effluents in increasing the yield potential of Pleurotusflabellatus (PF 1832) and Pleurotus sajor-caju (PS 1610) on bagasse

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