Plant Growth-Promoting Activity of Bacteria Isolated from Asian Rice (Oryza sativa L.) Depends on Rice Genotype

Balasjin, Nasim Maghboli; Maki, James S.; Schläppi, Michael; Marshall, C. W.

doi:10.1128/spectrum.02787-21

Cited by 9 publications

(7 citation statements)

References 77 publications

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Section: Discussionmentioning

confidence: 99%

“…Four bacterial strains, Pseudomonas mosselii, Microvirga, Paenibacillus rigui, and P. graminis isolated from Asian rice species (O. sativa) showed a rice genotype-dependent manner of rice growth promotion (Balasjin et al, 2022), which is similar to B. amyloliquefaciens OOS2-5. These results also reveal that endophytic bacterial behavior with regard to rice growth is affected by rice genotype, which cannot be predicted by bacterial taxa and their PGP traits in vitro.…”

Section: Endophytic Bacteria Of Oryza Officinalis Are the Resource Po...mentioning

confidence: 92%

“…The PGP traits of inorganic phosphate solubilization, organic phosphate solubilization, potassium release, siderophore production and nitrogen fixation were determined on Pikovskaya’s agar medium ( Pikovskaya, 1948 ), Mongina organophosphorus culture medium ( Hu et al., 2009 ), potassium bacteria agar medium ( Yaghoubi et al., 2021 ), chrome azurol S (CAS) agar medium ( Balasjin et al., 2022 ) and nitrogen-free Ashby’s medium ( Patil et al., 2010 ), respectively. The presence of a transparent zone around the bacterial colony was considered an indicator of a positive reaction for phosphate solubilization or potassium release.…”

Section: Methodsmentioning

confidence: 99%

“…Strains that grew well in nitrogen-free Ashby’s medium were recognized as nitrogen-fixing bacteria. The yields of IAA produced by bacteria cultured in precursor L-tryptophan medium were quantified using chloride perchloric acid reagent (FeCl 3 -HClO 4 ) by colorimetric methods ( Balasjin et al., 2022 ). ACC deaminase was induced on Dworkin & Foster (DF) salt minimal medium containing 3 mM ACC as the sole nitrogen source ( Penrose and Glick, 2003 ).…”

Section: Methodsmentioning

confidence: 99%

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Endophytic bacterial communities in wild rice (Oryza officinalis) and their plant growth-promoting effects on perennial rice

et al. 2023

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Endophytic bacterial microbiomes of plants contribute to the physiological health of the host and its adaptive evolution and stress tolerance. Wild rice possesses enriched endophytic bacteria diversity, which is a potential resource for sustainable agriculture. Oryza officinalis is a unique perennial wild rice species in China with rich genetic resources. However, endophytic bacterial communities of this species and their plant growth-promoting (PGP) traits remain largely unknown. In this study, endophytic bacteria in the root, stem, and leaf tissues of O. officinalis were characterized using 16S rRNA gene Illumina sequencing. Culturable bacterial endophytes were also isolated from O. officinalis tissues and characterized for their PGP traits. The microbiome analysis showed a more complex structure and powerful function of the endophytic bacterial community in roots compared with those in other tissue compartments. Each compartment had its specific endophytic bacterial biomarkers, including Desulfomonile and Ruminiclostridium for roots; Lactobacillus, Acinetobacter, Cutibacterium and Dechloromonas for stems; and Stenotrophomonas, Chryseobacterium, Achromobacter and Methylobacterium for leaves. A total of 96 endophytic bacterial strains with PGP traits of phosphate solubilization, potassium release, nitrogen fixation, 1-aminocyclopropane-1-carboxylate (ACC) deaminase secretion, and siderophore or indole-3-acetic acid (IAA) production were isolated from O. officinalis. Among them, 11 strains identified as Enterobacter mori, E. ludwigii, E. cloacae, Bacillus amyloliquefaciens, B. siamensis, Pseudomonas rhodesiae and Kosakonia oryzae were selected for inoculation of perennial rice based on their IAA production traits. These strains showed promising PGP effects on perennial rice seedlings. They promoted plants to form a strong root system, stimulate biomass accumulation, and increase chlorophyll content and nitrogen uptake, which could fulfil the ecologically sustainable cultivation model of perennial rice. These results provide insights into the bacterial endosphere of O. officinalis and its application potential in perennial rice. There is the prospect of mining beneficial endophytic bacteria from wild rice species, which could rewild the microbiome of cultivated rice varieties and promote their growth.

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Section: Discussionmentioning

confidence: 99%

Section: Endophytic Bacteria Of Oryza Officinalis Are the Resource Po...mentioning

confidence: 92%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Endophytic bacterial communities in wild rice (Oryza officinalis) and their plant growth-promoting effects on perennial rice

et al. 2023

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“…Rice ( Oryza sativa ) is one of the world's most important cereals and a staple food for half of the world's population 1 . Since the global population is rapidly growing and is predicted to reach 9.9 billion by 2050 2 , the production of rice must increase at least 1% annually to meet its demand 3 .…”

Section: Introductionmentioning

confidence: 99%

Identification of responsive genes to multiple abiotic stresses in rice (Oryza sativa): a meta-analysis of transcriptomics data

Azad,

Tohidfar,

Ghanbari Moheb Seraj

et al. 2024

Sci Rep

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Abiotic stresses limit the quantity and quality of rice grain production, which is considered a strategic crop in many countries. In this study, a meta-analysis of different microarray data at seedling stage was performed to investigate the effects of multiple abiotic stresses (drought, salinity, cold situation, high temperature, alkali condition, iron, aluminum, and heavy metal toxicity, nitrogen, phosphorus, and potassium deficiency) on rice. Comparative analysis between multiple abiotic stress groups and their control groups indicated 561 differentially expressed genes (DEGs), among which 422 and 139 genes were up-regulated and down-regulated, respectively. Gene Ontology analysis showed that the process of responding to stresses and stimuli was significantly enriched. In addition, pathways such as metabolic process and biosynthesis of secondary metabolites were identified by KEGG pathway analysis. Weighted correlation network analysis (WGCNA) uncovered 17 distinct co-expression modules. Six modules were significantly associated with genes involved in response to abiotic stresses. Finally, to validate the results of the meta-analysis, five genes, including TIFY9 (JAZ5), RAB16B, ADF3, Os01g0124650, and Os05g0142900 selected for qRT-PCR analysis. Expression patterns of selected genes confirmed the results of the meta-analysis. The outcome of this study could help introduce candidate genes that may be beneficial for use in genetic engineering programs to produce more tolerant crops or as markers for selection.

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Ensifer adhaerens strain OV14 seed application enhances Triticum aestivum L. and Brassica napus L. development

Grosu,

Singh Rathore,

Garcia Cabellos

et al. 2024

Heliyon

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Plant Growth-Promoting Activity of Bacteria Isolated from Asian Rice (Oryza sativa L.) Depends on Rice Genotype

Cited by 9 publications

References 77 publications

Endophytic bacterial communities in wild rice (Oryza officinalis) and their plant growth-promoting effects on perennial rice

Endophytic bacterial communities in wild rice (Oryza officinalis) and their plant growth-promoting effects on perennial rice

Identification of responsive genes to multiple abiotic stresses in rice (Oryza sativa): a meta-analysis of transcriptomics data

Ensifer adhaerens strain OV14 seed application enhances Triticum aestivum L. and Brassica napus L. development

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