Isolation and characterization of novel plant growth promoting Micrococcus sp NII-0909 and its interaction with cowpea

Background Plant biostimulants are diverse substances and microorganisms used to enhance plant growth. The global market for biostimulants is projected to increase 12 % per year and reach over $2,200 million by 2018. Despite the growing use of biostimulants in agriculture, many in the scientific community consider biostimulants to be lacking peer-reviewed scientific evaluation. Scope This article describes the emerging definitions of biostimulants and reviews the literature on five categories of biostimulants: i. microbial inoculants, ii. humic acids, iii. fulvic acids, iv. protein hydrolysates and amino acids, and v. seaweed extracts.Conclusions The large number of publications cited for each category of biostimulants demonstrates that there is growing scientific evidence supporting the use of biostimulants as agricultural inputs on diverse plant species. The cited literature also reveals some commonalities in plant responses to different biostimulants, such as increased root growth, enhanced nutrient uptake, and stress tolerance.

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“…), Microccocus spp. (Dastager et al 2010), Flavobacterium spp. (Kannapiran and Ramkuma 2011), Erwinia spp.…”

Section: Plant Growth Promotion Resulting From Better Nutrient Uptakementioning

confidence: 99%

Agricultural uses of plant biostimulants

2014

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“…Thus the seeds of O. ficus-indica might be equipped with a "survival kit" to inhabit inhospitable areas. Dastager et al (2010) [24] found that among phosphate solubilizing fungi, Aspergillus and Penicillium species were the most prominent. In our experiments both these two genera were represented in the rhizosphere of Opuntia seedlings ( Table 2) and even within seeds themselves (Figure 2), another indication that their seeds are especially equipped for survival on nutrient poor soils.…”

Section: Discussionmentioning

confidence: 99%

Endomycorrhizal Fungi and <i>Opuntia ficus-indica</i> Seed Germination on a Lunar Regolith Simulant

Konings-Dudin¹,

Butcher²,

Castor-Macías³

et al. 2014

AiM

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Endomycorrhizal fungi play an important role in the survival of plants on poor soils. Planting seeds into lunar soil at a lunar colony will be a challenge for seeds of any plant. The seeds will need a special microbial "tool kit" that will help them germinate and the young seedlings establish themselves. In this study, seeds of the prickly pear cactus, Opuntia ficus-indica, were chosen to examine the presence of fungus spores in the soil, inside the seeds and after germination in the rhizosphere, roots and other tissues of the young seedlings. The nutrient poor lunar regolith simulant JSC-1A was used as autoclaved or untreated growth medium. The mycorrhizal fungus Trichoderma viride was predominantly identified on the roots of new seedlings. This fungus also demonstrated the strongest effect on the germination rate of the seeds in comparison with other fungi isolated from the rhizosphere of Opuntia plants. T. viride was not detected within seeds and also not within seedlings, besides the root tips, whereas an arbuscular mycorrhizal Glomus species was seed-borne and present throughout most of the seedling. A close association between T. viride and a Glomus species associated with O. ficus-indica is demonstrated through light microscopic and electron microscopic images of the outside and inside root tips of the seedlings.

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“…Plant growth by ACC deaminase producing Micrococcus sp. NII-0909 was reported [49]. Three bacterial isolates showed positive test for growth inhibition of fungus Fusarium oxysporum.…”

Section: Figurementioning

confidence: 99%

Evaluation of Rhizospheric Bacteria from Ocimum sp. as Potential Pgpr

Saharan¹

2015

J Microb Biochem Technol

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In the present investigation, 24 rhizospheric soil samples of Ocimum sp. were collected from different vicinities of Delhi, Kurukshetra and Haridwar (India). A total of 266 bacterial strains were isolated and screened for in vitro plant growth promoting trait. About 86.46% bacterial isolates showed ammonium production, 89.09% exhibited phosphate solubilization and 87.59% for catalase production whereas only 7.14% showed positive reaction for HCN production. Five isolates viz., CHII(II)K7, CHIII(I)Y6, DDI(I)1, UHI(II)7 and CHII(I)NA4 were found to exhibit maximum number of plant growth promoting traits.

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Isolation and characterization of novel plant growth promoting Micrococcus sp NII-0909 and its interaction with cowpea

Cited by 141 publications

References 32 publications

Agricultural uses of plant biostimulants

Agricultural uses of plant biostimulants

Endomycorrhizal Fungi and <i>Opuntia ficus-indica</i> Seed Germination on a Lunar Regolith Simulant

Evaluation of Rhizospheric Bacteria from Ocimum sp. as Potential Pgpr

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Isolation and characterization of novel plant growth promoting Micrococcus sp NII-0909 and its interaction with cowpea

Cited by 141 publications

References 32 publications

Agricultural uses of plant biostimulants

Agricultural uses of plant biostimulants

Endomycorrhizal Fungi and &lt;i&gt;Opuntia ficus-indica&lt;/i&gt; Seed Germination on a Lunar Regolith Simulant

Evaluation of Rhizospheric Bacteria from Ocimum sp. as Potential Pgpr

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Endomycorrhizal Fungi and <i>Opuntia ficus-indica</i> Seed Germination on a Lunar Regolith Simulant