scholarly journals Use of Soil Microorganisms to Improve Plant Growth and Ecosystem Sustainability

10.5772/32814 ◽  
2012 ◽  
Author(s):  
Ins E. Garca de Salamone
Keyword(s):  
Plant Growth ◽  
Soil Microorganisms

scholarly journals Complete Genome Sequence of the Bacterial Component of Mysorin Biopreparation

2021 ◽  
Vol 10 (11) ◽  
Author(s):  
Alexey M. Afonin ◽  
Emma S. Gribchenko ◽  
Gulnar A. Akhtemova ◽  
Yuri V. Laktionov ◽  
Andrej P. Kozhemyakov ◽  
...  
Keyword(s):  
Plant Growth ◽  
Genome Sequence ◽  
Soil Microorganisms ◽  
Full Genome Sequence ◽  
Plant Growth Promoting Bacteria ◽  
Full Genome ◽  
Circular Chromosome ◽  
Content Type ◽  
Plant Growth Promoting ◽  
Growth Promoting

ABSTRACT Plants can form various beneficial associations with soil microorganisms, such as associations with plant growth-promoting bacteria (PGPB). In this work, we report the full-genome sequence of the component of Mysorin biopreparation, identified as Microbacterium hominis, consisting of a single 3.5-Mbp circular chromosome.

scholarly journals Effects of shade stress on turfgrasses morphophysiology and rhizosphere soil bacterial communities

2020 ◽  
Author(s):  
Juanjuan Fu ◽  
Yilan Luo ◽  
Pengyue Sun ◽  
Jinzhu Gao ◽  
Donghao Zhao ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Plant Growth ◽  
Bacterial Communities ◽  
Shade Tolerance ◽  
Soil Microorganisms ◽  
Rhizosphere Soil ◽  
Photosynthetic Capacity ◽  
Soil Bacterial Communities ◽  
Plant Soil ◽  
Soil Bacterial

Abstract Background: The shade represents one of the major environmental limitations for turfgrass growth. Shade influences plant growth and alters plant metabolism, yet little is known about how shade affects the structure of rhizosphere soil microbial communities and the role of soil microorganisms in plant shade responses. In this study, a glasshouse experiment was conducted to examine the impact of shade on the growth and photosynthetic capacity of two contrasting shade-tolerant turfgrasses, shade-tolerant dwarf lilyturf (Ophiopogon japonicus, OJ) and shade-intolerant perennial turf-type ryegrass (Lolium perenne, LP). We also examined soil-plant feedback effects on shade tolerance in the two turfgrass genotypes. The composition of the soil bacterial community was assayed using high-throughput sequencing. Results: OJ maintained higher photosynthetic capacity and root growth than LP under shade stress, thus OJ was found to be more shade-tolerant than LP. Shade-intolerant LP responded better to both shade and soil microbes than shade-tolerant OJ. The shade and live soil decreased LP growth, but increased biomass allocation to shoots in the live soil. The plant shade response index of LP is higher in live soil than sterile soil, driven by weakened soil-plant feedback under shade stress. In contrast, there was no difference in these values for OJ under similar shade and soil treatments. Shade stress had little impact on the diversity of the OJ and the LP bacterial communities, but instead impacted their composition. The OJ soil bacterial communities were mostly composed of Proteobacteria and Acidobacteria. Further pairwise fitting analysis showed that a positive correlation of shade-tolerance in two turfgrasses and their bacterial community compositions. Several soil properties (NO3--N, NH4+-N, AK) showed a tight coupling with several major bacterial communities under shade stress. Moreover, OJ shared core bacterial taxa known to promote plant growth and confer tolerance to shade stress, which suggests common principles underpinning OJ-microbe interactions. Conclusion: Soil microorganisms mediate plant responses to shade stress via plant-soil feedback and shade-induced change in the rhizosphere soil bacterial community structure for OJ and LP plants. These findings emphasize the importance of understanding plant-soil interactions and their role in the mechanisms underlying shade tolerance in shade-tolerant turfgrasses.

scholarly journals The Medicinal Plant Atractylodes Lancea Recruits Specialized Plant Growth-Promoting Bacteria From The Soil

2021 ◽  
Author(s):  
Wang Hongyang ◽  
Daiquan Jiang ◽  
Zengxu Xiang ◽  
Sheng Wang ◽  
Chuanzhi Kang ◽  
...  
Keyword(s):  
High Temperature ◽  
Plant Growth ◽  
Medicinal Plant ◽  
Secondary Metabolite ◽  
Soil Microorganisms ◽  
Plant Growth Promoting Bacteria ◽  
Volatile Oils ◽  
Atractylodes Lancea ◽  
Plant Growth Promoting ◽  
Growth Promoting

Abstract Purpose: Atractylodes lancea is a medicinal plant used to treat rheumatic diseases, digestive disorders, night blindness, and influenza. However, the microbiome associated with A. lancea remains unclear. In this study, we assess the role of microorganisms in the roots of A. lancea in regulating plant growth and secondary metabolites, and investigate the microbial composition of the root of A. lancea.Methods: The roots of A. lancea were inoculated with 10% soil suspension at different temperatures. Thereafter, the biological indices, major volatile oils, chemical properties of the rhizosphere soil, and the diversity of root endophytic and rhizosphere bacterial communities of A. lancea were assessed.Results: Soil microorganisms could attenuate the damage of high-temperature to A. lancea and significantly promote the growth and accumulation of volatile oil. A. lancea recruited endogenous plant growth-promoting bacteria (PGPBs) from soil, including Burkholderia-Caballeronia-paraburkholderia, Bradyrhizobium, Paenibacillus, Bacillus and Rhodococcus. These bacteria were positively correlated with four volatile oils. In the rhizosphere, PGPBs such as Novosphingobium are recruited.Conclusions: Soil microorganisms promote the growth and development of A. lancea, improve the plant’s ability to resist high temperature stress, and accelerate secondary metabolite accumulation. Most importantly, A. lancea could recruit and enrich specialized PGPBs from the soil. The PGPBs were significantly and positively correlated with A. lancea secondary metabolite and soil nutrient content, and can be used as ideal biological material in A. lancea cultivation and quality improvement.

scholarly journals Isolation and identification of Rhizobium from non-saline coastal soils of Bangladesh and preparation of mother culture

2020 ◽  
Vol 6 (2) ◽  
pp. 222-228
Author(s):  
Md Rafiq Uddin ◽  
Mosa Farjana Tasmin ◽  
Md Shahin Hossin ◽  
Md Mainul Islam Rashad ◽  
Md Fazlul Hoque ◽  
...  
Keyword(s):  
Plant Growth ◽  
Crop Yield ◽  
Soil Microorganisms ◽  
Atmospheric Nitrogen ◽  
Microbial Inoculants ◽  
Isolation And Identification ◽  
Rhizobium Strains ◽  
Important Trait ◽  
Coastal Soils ◽  
Macro Nutrients

Nitrogen is the essential mineral macro nutrients which are required for the maximum magnification and yield of agriculturally paramount crops. Microbial inoculants may supplement and abbreviate the dependency on synthetic costly N-fertilizers in reverence of crop yield. The categorical objectives of the research works are to isolate and identify the Rhizobium from culled soils. The ability of soil microorganisms to fix atmospheric nitrogen is an important trait in promoting plant growth and increasing crop yield. The study was conducted for the isolation and identification of nitrogen fixing bacteria from saline and non-saline soils of different locations of tidal floodplain region of Bangladesh. Six Rhizobium strains were isolated and purified. The isolates were preliminary identified on the basis of their morphological and biochemical characteristics. Based on the results, it can be concluded that the isolates possess great potential to be developed as biofertilizers to enhance soil fertility and plant growth. However, their performance under green house and field conditions should be assessed afore being recommended for biofertilizer production and their applications. Asian J. Med. Biol. Res. June 2020, 6(2): 222-228

scholarly journals Effect of biochars from sewage sludge on plant growth, soil microorganisms, and nitrogen content in grey forest soils

2020 ◽  
Vol 38 (4) ◽  
pp. 54-70
Author(s):  
Stanislav Sergeevich Ryazanov ◽  
Valentina Ivanovna Kulagina ◽  
Andrey Nikolaevich Grachev ◽  
Lutsia Mansurovna Sungatullina ◽  
Sergey Andreevich Zabelkin ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Plant Growth ◽  
Nitrogen Content ◽  
Forest Soils ◽  
Soil Microorganisms

scholarly journals Vpliv koristnih talnih mikroorganizmov in endofitov na rastlinsko obrambo pred žuželkami

2019 ◽  
Vol 113 (1) ◽  
pp. 187
Author(s):  
Anamarija JAGODIČ ◽  
Matevž LIKAR
Keyword(s):  
Plant Growth ◽  
Natural Enemies ◽  
Biotic Stress ◽  
Mycorrhizal Fungi ◽  
Soil Microorganisms ◽  
Growth Promotion ◽  
Plant Growth Promoting Rhizobacteria ◽  
Abiotic And Biotic Stress ◽  
Plant Growth Promoting ◽  
Growth Promoting

Soil borne microorganisms such as mycorrhizal fungi and plant growth-promoting rhizobacteria help plants to overcome abiotic and biotic stress. Mechanisms used in this situtations are: growth promotion and induced resistance. Beneficial soil microorganisms also interact with foliar insects (herbivores, natural enemies and pollinators). This kind of interactions are getting more and more important in different ecosystems, especially in agriculture. A better knowledege of these systems would certainly help to deepen the understanding of multitrophic interactions.

Effects of Burning on Carbon Utilization of Soil Microorganisms and Plant Growth of Carex brevicuspis Communities at Lake Poyang Wetlands, China

Wetlands ◽  
2018 ◽  
Vol 39 (S1) ◽  
pp. 1-15 ◽  
Author(s):  
Guangshuai Zhang ◽  
Xiubo Yu ◽  
Ya Li ◽  
Yu Liu ◽  
Huan Zhang ◽  
...  
Keyword(s):  
Plant Growth ◽  
Soil Microorganisms ◽  
Carbon Utilization ◽  
Lake Poyang
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