scholarly journals Complete Genome Sequence of Pseudomonas psychrotolerans CS51, a Plant Growth-Promoting Bacterium, Under Heavy Metal Stress Conditions

2020 ◽  
Vol 8 (3) ◽  
pp. 382 ◽  
Author(s):  
Sang-Mo Kang ◽  
Sajjad Asaf ◽  
Abdul Latif Khan ◽  
Lubna ◽  
Adil Khan ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Plant Growth ◽  
Transport System ◽  
Genome Sequence ◽  
Heavy Metal Stress ◽  
Function Prediction ◽  
Metal Stress ◽  
Protein Coding ◽  
Plant Growth Promoting ◽  
Growth Promoting

In the current study, we aimed to elucidate the plant growth-promoting characteristics of Pseudomonas psychrotolerans CS51 under heavy metal stress conditions (Zn, Cu, and Cd) and determine the genetic makeup of the CS51 genome using the single-molecule real-time (SMRT) sequencing technology of Pacific Biosciences. The results revealed that inoculation with CS51 induced endogenous indole-3-acetic acid (IAA) and gibberellins (GAs), which significantly enhanced cucumber growth (root shoot length) and increased the heavy metal tolerance of cucumber plants. Moreover, genomic analysis revealed that the CS51 genome consisted of a circular chromosome of 5,364,174 base pairs with an average G+C content of 64.71%. There were around 4774 predicted protein-coding sequences (CDSs) in 4859 genes, 15 rRNA genes, and 67 tRNA genes. Around 3950 protein-coding genes with function prediction and 733 genes without function prediction were identified. Furthermore, functional analyses predicted that the CS51 genome could encode genes required for auxin biosynthesis, nitrate and nitrite ammonification, the phosphate-specific transport system, and the sulfate transport system, which are beneficial for plant growth promotion. The heavy metal resistance of CS51 was confirmed by the presence of genes responsible for cobalt-zinc-cadmium resistance, nickel transport, and copper homeostasis in the CS51 genome. The extrapolation of the curve showed that the core genome contained a minimum of 2122 genes (95% confidence interval = 2034.24 to 2080.215). Our findings indicated that the genome sequence of CS51 may be used as an eco-friendly bioresource to promote plant growth in heavy metal-contaminated areas.

scholarly journals Differential effects of plant growth promoting rhizobacteria on chilli (Capsicum annuum L.) seedling under cadmium and lead stress

2018 ◽  
Vol 5 (4) ◽  
pp. 182-190 ◽  
Author(s):  
Amit Kumar Pal ◽  
Arpita Chakraborty ◽  
Chandan Sengupta
Keyword(s):  
Heavy Metal ◽  
Plant Growth ◽  
Growth Parameters ◽  
Plant Growth Promoting Rhizobacteria ◽  
Heavy Metal Stress ◽  
Metal Stress ◽  
Growth Enhancement ◽  
Chilli Plant ◽  
Plant Growth Promoting ◽  
Growth Promoting

Rapidly increasing worldwide industrialization has led to many environmental problems by the liberation of pollutants such as heavy metals. Day by day increasing metal contamination in soil and water can be best coped by the interaction of potential plant growth promoting rhizobacteria for plant growth. The effect of plant growth promoting rhizobacteria (PGPR) treatment on growth of chilli plant subjected to heavy metal stress was evaluated. Growth of chilli plant was examined with inoculation of two isolated PGPR (Lysinibacillus varians and Pseudomonas putida) under cadmium (30 ppm), lead (150 ppm) and the combination of heavy metal (Cd+Pb) stress condition. Among these two bacteria L. varians produced slightly better plant growth enhancement. Different growth parameters of chilli plants were reduced under heavy metal stress. Whereas, Cd and Pb tolerant PGPR inoculation, in root associated soil, enhanced plant growth development under test heavy metal contaminated soil. So, these PGPRs may easily be used as bio-fertilizers which will nullify the adverse effect of heavy metal on plant growth.

Beneficial role of plant growth promoting bacteria and arbuscular mycorrhizal fungi on plant responses to heavy metal stress

2009 ◽  
Vol 55 (5) ◽  
pp. 501-514 ◽  
Author(s):  
Elisa Gamalero ◽  
Guido Lingua ◽  
Graziella Berta ◽  
Bernard R. Glick
Keyword(s):  
Heavy Metal ◽  
Plant Growth ◽  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Heavy Metal Stress ◽  
Metal Stress ◽  
Plant Growth Promoting Bacteria ◽  
Plant Growth Promoting ◽  
Growth Promoting

Heavy metal pollution is a major worldwide environmental concern that has recently motivated researchers to develop a variety of novel approaches towards its cleanup. As an alternative to traditional physical and chemical methods of environmental cleanup, scientists have developed phytoremediation approaches that include the use of plants to remove or render harmless a range of compounds. Both plant growth promoting bacteria (PGPB) and arbuscular mycorrhizal fungi (AMF) can be used to facilitate the process of phytoremediation and the growth of plants in metal-contaminated soils. This review focuses on the recent literature dealing with the effects of plant growth-promoting bacteria and AM fungi on the response of plants to heavy metal stress and points the way to strategies that may facilitate the practical realization of this technology.

scholarly journals Draft Genome Sequence of the Plant Growth-Promoting Sphingobium sp. Strain AEW4, Isolated from the Rhizosphere of the Beachgrass Ammophila breviligulata

2018 ◽  
Vol 6 (21) ◽  
Author(s):  
Abanoub E. Wanees ◽  
Shari J. Zaslow ◽  
Savannah J. Potter ◽  
Brandon P. Hsieh ◽  
Brianna L. Boss ◽  
...  
Keyword(s):  
Plant Growth ◽  
Genome Sequence ◽  
Genomic Sequence ◽  
Draft Genome ◽  
Draft Genome Sequence ◽  
Protein Coding ◽  
Content Type ◽  
Ammophila Breviligulata ◽  
Plant Growth Promoting ◽  
Growth Promoting

ABSTRACT Sphingobium sp. strain AEW4 is a novel isolate from rhizosphere soil attached to the root of the American beachgrass Ammophila breviligulata. The genomic sequence consisted of 4,678,518 bp and 4,428 protein-coding sequences. Here we report the draft genome sequence of this strain and some initial insights on its plant growth-promoting capabilities.

scholarly journals Draft Genome Sequence of a Diazotrophic, Plant Growth–Promoting Rhizobacterium of thePseudomonas syringaeComplex

2016 ◽  
Vol 4 (5) ◽  
Author(s):  
Cheryl L. Patten ◽  
Haeyoung Jeong ◽  
Andrew J. C. Blakney ◽  
Natalie Wallace
Keyword(s):  
Nitrogen Fixation ◽  
Plant Growth ◽  
Pseudomonas Syringae ◽  
Genome Sequence ◽  
Draft Genome ◽  
Draft Genome Sequence ◽  
Protein Coding ◽  
Protein Coding Genes ◽  
Plant Growth Promoting ◽  
Growth Promoting

We report here the draft genome sequence ofPseudomonas syringaeGR12-2, a nitrogen-fixing, plant growth–promoting bacterium, isolated from the rhizosphere of an Arctic grass. The 6.6-Mbp genome contains 5,676 protein-coding genes, including a nitrogen-fixation island similar to that inP. stutzeri.

scholarly journals Alleviation of Salinity and Metal Stress Using Plant Growth-Promoting Rhizobacteria Isolated From Semiarid Moroccan Copper-Mine Soils

2021 ◽  
Author(s):  
Atika Madline ◽  
Leila Benidire ◽  
Ali Boularbah
Keyword(s):  
Heavy Metal ◽  
Plant Growth ◽  
Root Elongation ◽  
Metal Tolerance ◽  
Soluble Sugars ◽  
Plant Growth Promoting Rhizobacteria ◽  
Metal Stress ◽  
Pgp Traits ◽  
Plant Growth Promoting ◽  
Growth Promoting

Abstract Phytoremediation is an eco-friendly method for rehabilitation of mine tailing using plants and their associated rhizosphere microorganisms. Some heavy metal and salt-tolerant plant growth promoting rhizobacteria (PGPR) could be beneficial in alleviating soil salinity and heavy metal stress. The aim of this work is to select PGPR that could be used in phytoremediation process. Twenty-nine rhizobacteria were examined for their ability to grow at increasing concentrations of NaCl and high concentrations of Zn, Pb, Cu and Cd. The results showed that seventeen rhizobacteria displayed high salinity and metal tolerance (up to 100g L− 1 NaCl, up to 5 mM Cd, 9 mM Pb, 10 mM Zn, and Cu up to 6 mM). This work showed also that salinity and metallic stress has affected bacterial growth and metabolism by increasing intracellular proline, soluble sugars, free amino-acids and exopolysaccharides production. Moreover, almost all tested bacteria maintained their PGP traits under 10 % of NaCl and multi-metal stress. Four strains exhibiting the best PGP activities namely Mesorhizobium tamadayense, Enterobacter xiangfangensis, Pseudomonas azotifigens and Streptomyces Caelestis were selected for root elongation bioassay. The consortium of these rhizobacteria improves significantly the root elongation of Peganum harmala and Lactuca sativa under metallic and salt stress. Thus, the rhizobacteria with beneficial traits as well as tolerance to abiotic stress could be useful to stimulate plants establishment under different environmental stresses.

scholarly journals Draft Genome Sequence of Bacillus cereus LCR12, a Plant Growth–Promoting Rhizobacterium Isolated from a Heavy Metal–Contaminated Environment

2016 ◽  
Vol 4 (5) ◽  
Author(s):  
Eleonora Egidi ◽  
Jennifer L. Wood ◽  
Elizabeth Mathews ◽  
Edward Fox ◽  
Wuxing Liu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Plant Growth ◽  
Bacillus Cereus ◽  
Genome Sequence ◽  
Contaminated Soils ◽  
Potential Application ◽  
Genetic Basis ◽  
Draft Genome ◽  
Plant Growth Promoting ◽  
Growth Promoting

Bacillus cereus LCR12 is a plant growth–promoting rhizobacterium, isolated from a heavy metal–contaminated environment. The 6.01-Mb annotated genome sequence provides the genetic basis for revealing its potential application to remediate contaminated soils in association with plants.

scholarly journals Genome Sequence of the Plant Growth-Promoting Rhizobacterium Pantoea agglomerans C1

2019 ◽  
Vol 8 (44) ◽  
Author(s):  
Francesca Luziatelli ◽  
Anna Grazia Ficca ◽  
Francesca Melini ◽  
Maurizio Ruzzi
Keyword(s):  
Antimicrobial Activity ◽  
Plant Growth ◽  
Genome Sequence ◽  
Pantoea Agglomerans ◽  
Protein Coding ◽  
Pgp Traits ◽  
Coding Sequences ◽  
Content Type ◽  
Plant Growth Promoting ◽  
Growth Promoting

Pantoea agglomerans strain C1 has plant growth-promoting (PGP) traits and exhibits antimicrobial activity. The genome comprises 4.8 Mb, 4,696 protein-coding sequences, and a G+C content of 55.2%.

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