Isolation, characterization and inoculation of Cd tolerant rice endophytes and their impacts on rice under Cd contaminated environment

Zhou, Jingjing; Li, Peng; Meng, Delong; Gu, Yanling; Zheng, Zhongyi; Yin, Huaqun; QingMing, Zhou; Li, Juan

doi:10.1016/j.envpol.2020.113990

Cited by 70 publications

(34 citation statements)

References 65 publications

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“…A majority of plant endophytic bacterial communities have been isolated and identified through culture-dependent methods [ 23 , 24 , 25 , 26 , 59 , 60 , 75 , 81 , 82 , 83 , 84 , 85 ]. However, to study the endophytic bacteria diversity by using these methods, the bacterial strains must be culturable under in vitro conditions.…”

Section: Methods For Isolation and Identification Of Endophytic Bacteriamentioning

confidence: 99%

“…The most common track for the isolation of endophytic bacteria diversity from rice tissues using a culture-dependent method which can be visualized in Figure 3 , but each study uses a different concentration of surface sterilization agent according to the sample size, shape, and thinness of the rice tissues [ 27 , 86 ]. The surface sterilization of rice samples was carried out by using sodium hypochlorite (NaClO) with different concentrations, and then the samples were washed with 70% ethanol solution at the end, to use sterilize distilled water for removing traces of chemical solutions from samples [ 60 , 87 ]. For the confirmation of the effectiveness of the surface sterilization procedure, the last washing water is plated on the culture medium.…”

Section: Methods For Isolation and Identification Of Endophytic Bacteriamentioning

confidence: 99%

“…For the confirmation of the effectiveness of the surface sterilization procedure, the last washing water is plated on the culture medium. Moreover, culture medium is very important to explore the endophytic bacterial diversity; for rice endophytes bacteria, most of the studies used Tryptone soya agar (TAS) medium, which is also known as a Trypticase soy agar [ 31 , 60 , 86 , 88 , 89 ]. Endophytes bacteria populations are dependent on the type of growth media used to culture the bacteria from plant tissues, host plant growth environment, and surface sterilization method to plant tissues.…”

Section: Methods For Isolation and Identification Of Endophytic Bacteriamentioning

confidence: 99%

“…Few studies have reported that bacterial genera are specific for seed colonization; for example, the Pseudomonas putida mutant during the secretion-system investigations displayed the reduction in their potential to colonize with maize seeds [ 58 ]. On the other hand, rice root endophytic bacteria are more diverse [ 25 , 59 ] compared to seed endophytes [ 60 , 61 ]; complete details can be visualized in Figure 1 .…”

Section: Endophytic Bacterial Diversity In the Rice Plantmentioning

confidence: 99%

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Diversity and Taxonomic Distribution of Endophytic Bacterial Community in the Rice Plant and Its Prospective

Ali

Sohail

et al. 2021

IJMS

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Endophytic bacterial communities are beneficial communities for host plants that exist inside the surfaces of plant tissues, and their application improves plant growth. They benefit directly from the host plant by enhancing the nutrient amount of the plant’s intake and influencing the phytohormones, which are responsible for growth promotion and stress. Endophytic bacteria play an important role in plant-growth promotion (PGP) by regulating the indirect mechanism targeting pest and pathogens through hydrolytic enzymes, antibiotics, biocontrol potential, and nutrient restriction for pathogens. To attain these benefits, firstly bacterial communities must be colonized by plant tissues. The nature of colonization can be achieved by using a set of traits, including attachment behavior and motility speed, degradation of plant polymers, and plant defense evasion. The diversity of bacterial endophytes colonization depends on various factors, such as plants’ relationship with environmental factors. Generally, each endophytic bacteria has a wide host range, and they are used as bio-inoculants in the form of synthetic applications for sustainable agriculture systems and to protect the environment from chemical hazards. This review discusses and explores the taxonomic distribution of endophytic bacteria associated with different genotypes of rice plants and their origin, movement, and mechanism of PGP. In addition, this review accentuates compressive meta data of endophytic bacteria communities associated with different genotypes of rice plants, retrieves their plant-growth-promoting properties and their antagonism against plant pathogens, and discusses the indication of endophytic bacterial flora in rice plant tissues using various methods. The future direction deepens the study of novel endophytic bacterial communities and their identification from rice plants through innovative techniques and their application for sustainable agriculture systems.

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Section: Methods For Isolation and Identification Of Endophytic Bacteriamentioning

confidence: 99%

Section: Methods For Isolation and Identification Of Endophytic Bacteriamentioning

confidence: 99%

Section: Methods For Isolation and Identification Of Endophytic Bacteriamentioning

confidence: 99%

Section: Endophytic Bacterial Diversity In the Rice Plantmentioning

confidence: 99%

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Diversity and Taxonomic Distribution of Endophytic Bacterial Community in the Rice Plant and Its Prospective

Ali

Sohail

et al. 2021

IJMS

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“…To resist abiotic stress, endophytic bacteria can help heavy metal contaminated plants to carry out bioremediation, e.g. Zhou et al 29 found that endophytic bacteria Stenotrophomonas maltophilia R5-5 significantly reduced the cadmium content in rice plants by down regulating the gene expression of cadmium absorption and transport proteins in rice and changing the community structure of endophytic bacteria. Endophytic bacteria can increase the biomass yield of host plants under different heavy metal stress, which indicates thatEndophytic bacteria can effectively protect plants from the toxicity of many heavy metals (Cd, Cu, Cr, Mn, Ni, Pb and Zn).…”

mentioning

confidence: 99%

Effects of Rare Earth Elements on Bacteria in Rhizosphere, Root, Phyllosphere and Leaf of Soil-Rice Ecosystem

Xin-zhuan

Pan

et al. 2021

Preprint

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The effects of rare earth mining on rice biomass, rare earth element(REE) content and bacterial community structure was studied by pot experiment. The research showed that the REE content in rice roots, shoots and grains was significantly positive correlated with that in soil, and the dry weight of rice roots, shoots and grains was highly correlated with soil physical and chemical properties, nutrient elements and REE contents; The exploitation of rare earth minerals inhibited a-diversity of endophytic fungi in rhizosphere, root, phyllosphere and leaf of rice, significantly reduced the abundance index, OTU number, Chao, Ace index and also significantly reduced the diversity index-Shannon index and Inv-Simpson index, also reduced uniformity index: Pielou’s evenness index, Simpson’s evenness index, etc, which caused β-diversity of bacteria to be quite different. The exploitation of rare earth minerals reduces the diversity of bacteria, but forms dominant bacteria, such as Burkholderia, Bacillus, Buttiauxella, Acinetobacter, Bradyrhizobium, Candida koribacter, which can degrade the pollutants formed by exploitation of rare earth minerals, alleviate the compound pollution of rare earth and ammonia nitrogen, and also has the function of fixing nitrogen and resisting rare earth stress; The content of soil available phosphorus in non mining area is low, forming the dominant bacteria of Pantoea, which has the function of improving soil phosphorus availability. Rare earth elements and physical and chemical properties of soil affect the community structure of bacteria in rhizosphere and phyllosphere of rice, promote the parallel movement of some bacteria in rhizosphere, root, phyllosphere and leaf of rice, promote the construction of community structure of bacteria in rhizosphere and phyllosphere of rice, give full play to the growth promoting function of Endophytes, and promote the growth of rice. The results showed that the rice biomass in mining area was guaranteed due to the growth promoting effect of endophytic bacteria, However, the mining of mineral resources causes the compound pollution of rare earth and ammonia nitrogen, which makes REE content of rice in mining area significantly higher than that in non mining area.

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Phytomicrobiome Community: An Agrarian Perspective Towards Resilient Agriculture

Sharma

Kapoor

et al. 2021

Plant Performance Under Environmental Stress

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Isolation, characterization and inoculation of Cd tolerant rice endophytes and their impacts on rice under Cd contaminated environment

Cited by 70 publications

References 65 publications

Diversity and Taxonomic Distribution of Endophytic Bacterial Community in the Rice Plant and Its Prospective

Diversity and Taxonomic Distribution of Endophytic Bacterial Community in the Rice Plant and Its Prospective

Effects of Rare Earth Elements on Bacteria in Rhizosphere, Root, Phyllosphere and Leaf of Soil-Rice Ecosystem

Phytomicrobiome Community: An Agrarian Perspective Towards Resilient Agriculture

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