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Lin L, Li C, Ren Z, Qin Y, Wang R, Wang J, Cai J, Zhao L, Li X, Cai Y, Xiong X. Transcriptome profiling of genes regulated by phosphate-solubilizing bacteria Bacillus megaterium P68 in potato ( Solanum tuberosum L.). Front Microbiol 2023; 14:1140752. [PMID: 37138634 PMCID: PMC10150959 DOI: 10.3389/fmicb.2023.1140752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/16/2023] [Indexed: 05/05/2023] Open
Abstract
The insoluble phosphorus in the soil is extremely difficult to be absorbed and used directly through the potato root system. Although many studies have reported that phosphorus-solubilizing bacteria (PSB) can promote plant growth and uptake of phosphorus, the molecular mechanism of phosphorus uptake and growth by PSB has not been investigated yet. In the present study, PSB were isolated from rhizosphere soil in soybean. The data of potato yield and quality revealed that the strain P68 was the most effective In the present study, PSB identification, potato field experiment, pot experiment and transcriptome profiling to explored the role of PSB on potato growth and related molecular mechanisms. The results showed that the P68 strain (P68) was identified as Bacillus megaterium by sequencing, with a P-solubilizing ability of 461.86 mg·L-1 after 7-day incubation in National Botanical Research Institute's Phosphate (NBRIP) medium. Compared with the control group (CK), P68 significantly increased the yield of potato commercial tubers by 17.02% and P accumulation by 27.31% in the field. Similarly, pot trials showed that the application of P68 significantly increased the biomass, total phosphorus content of the potato plants, and available phosphorus of the soil up by 32.33, 37.50, and 29.15%, respectively. Furthermore, the transcriptome profiling results of the pot potato roots revealed that the total number of bases was about 6G, and Q30 (%) was 92.35-94.8%. Compared with the CK, there were a total of 784 differential genes (DEGs) regulated when treated with P68, which 439 genes were upregulated and 345 genes were downregulated. Interestingly, most of the DEGs were mainly related to cellular carbohydrate metabolic process, photosynthesis, and cellular carbohydrate biosynthesis process. According to the KEGG pathway analysis, a total of 46 categorical metabolic pathways in the Kyoto Encyclopedia of Genes and Genomes (KEGG) database were annotated to 101 DEGs found in potato roots. Compared with the CK, most of the DEGs were mainly enriched in glyoxylate and dicarboxylate metabolism (sot00630), nitrogen metabolism (sot00910), tryptophan metabolism (sot00380), and plant hormone signal transduction (sot04075), and these DEGs might be involved in the interactions between Bacillus megaterium P68 and potato growth. The qRT-PCR analysis of differentially expressed genes showed that inoculated treatments P68 significantly upregulated expression of the phosphate transport, nitrate transport, glutamine synthesis, and abscisic acid regulatory pathways, respectively, and the data from qRT-PCR were consistent with that obtained from RNA-seq. In summary, PSB may be involved in the regulation of nitrogen and phosphorus nutrition, glutaminase synthesis, and abscisic acid-related metabolic pathways. This research would provide a new perspective for studying the molecular mechanism of potato growth promotion by PSB in the level of gene expression and related metabolic pathways in potato roots under the application of Bacillus megaterium P68.
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Affiliation(s)
- Lizhen Lin
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Chengchen Li
- Guangdong Provincial Key Laboratory of Crop Genetic Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Zongling Ren
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Yuzhi Qin
- Engineering Research Center for Horticultural Crop Germplasm Creation and New Variety Breeding, Ministry of Education Changsha, Hunan Provincial Engineering Research Center for Potatoes, Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha, China
| | - Ruilong Wang
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Jia Wang
- Guangdong Institute Center of Wine and Spirits, Guangdong Institute of Food Inspection, Guangzhou, China
| | - Jianying Cai
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Lanfeng Zhao
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Xiaobo Li
- Guangdong Provincial Key Laboratory of Crop Genetic Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
- *Correspondence: Xiaobo Li,
| | - Yanfei Cai
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Yanfei Cai,
| | - Xingyao Xiong
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Xingyao Xiong,
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Li C, Jia Z, Peng X, Zhai L, Zhang B, Liu X, Zhang J. Functions of mineral-solubilizing microbes and a water retaining agent for the remediation of abandoned mine sites. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 761:143215. [PMID: 33160670 DOI: 10.1016/j.scitotenv.2020.143215] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/16/2020] [Accepted: 10/18/2020] [Indexed: 06/11/2023]
Abstract
There has been a rapid increase in abandoned mines across China, Consequently, external-soil spray seeding technologies have emerged as a common method for their remediation. However, slope soils are typically unstable and easily collapsed and the nutrients absorbed by plants are insufficient, which complicate ecological restoration. For this study, we added mineral-solubilizing microbes and a water retaining agent to an external-soil spray seeding substrate in Lespedeza bicolor pots. We investigated the soil nutrients, soil enzyme activities, root growth parameters, root tensile properties, and root-reinforced soil shear strengths. The results revealed that the addition of microbes enhanced soil nutrients, soil enzyme activities, and the content of lignin and hemicellulose, which promoted root growth. Further, the addition of a water retaining agent promoted Lespedeza bicolor root growth but decreased the root tensile strength and force. Shear stress under the microbe treatment was more robust than without it. Finally, root growth was correlated with soil nutrients and enzyme activities, whereas the root tensile force and strength were correlated with lignin and cellulose. Our results suggested that the addition of mineral-solubilizing microbes had the capacity to enhance the quality of soils to facilitate the growth of plants. These results provide a new and viable strategy for the ecological restoration of abandon mine sites.
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Affiliation(s)
- Chong Li
- Co-Innovation Center for Sustainable Forestry in Southern China, Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Nanjing Forestry University, 159 Longpan Road, Nanjing, Jiangsu 210037, China
| | - Zhaohui Jia
- Co-Innovation Center for Sustainable Forestry in Southern China, Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Nanjing Forestry University, 159 Longpan Road, Nanjing, Jiangsu 210037, China
| | - Xiaonan Peng
- Co-Innovation Center for Sustainable Forestry in Southern China, Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Nanjing Forestry University, 159 Longpan Road, Nanjing, Jiangsu 210037, China
| | - Lu Zhai
- Earth and Environmental Science Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - Bo Zhang
- Department of Environmental Science and Policy, University of California, Davis, Davis, CA 95616, USA
| | - Xin Liu
- Co-Innovation Center for Sustainable Forestry in Southern China, Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Nanjing Forestry University, 159 Longpan Road, Nanjing, Jiangsu 210037, China
| | - Jinchi Zhang
- Co-Innovation Center for Sustainable Forestry in Southern China, Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Nanjing Forestry University, 159 Longpan Road, Nanjing, Jiangsu 210037, China.
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Wang R, Guo S. Phytic acid and its interactions: Contributions to protein functionality, food processing, and safety. Compr Rev Food Sci Food Saf 2021; 20:2081-2105. [DOI: 10.1111/1541-4337.12714] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/15/2020] [Accepted: 01/06/2021] [Indexed: 12/16/2022]
Affiliation(s)
- Ruican Wang
- Department of Food Science University of Wisconsin‐Madison Madison Wisconsin USA
| | - Shuntang Guo
- Beijing Key Laboratory of Plant Protein and Cereal Processing, College of Food Science & Nutritional Engineering China Agricultural University Beijing China
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