Impact of foliar application of phyllosphere yeast strains combined with soil fertilizer application on rice growth and yield
Abstract Background The application of beneficial microbes in agriculture is gaining increasing attention as a means to reduce reliance on chemical fertilizers. This approach can potentially mitigate negative impacts on soil, animal, and human health, as well as decrease climate-changing factors. Am...
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| Format: | Article |
| Language: | English |
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BMC
2024-12-01
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| Series: | Environmental Microbiome |
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| Online Access: | https://doi.org/10.1186/s40793-024-00635-9 |
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| author | Gomathy Muthukrishanan Jeyashri Munisamy Sabarinathan Kuttalingam Gopalasubramaniam Kizaharael Sevathapandian Subramanian Rajakumar Dharmaraj Dhruba Jyoti Nath Pranab Dutta Arun Kumar Devarajan |
| author_facet | Gomathy Muthukrishanan Jeyashri Munisamy Sabarinathan Kuttalingam Gopalasubramaniam Kizaharael Sevathapandian Subramanian Rajakumar Dharmaraj Dhruba Jyoti Nath Pranab Dutta Arun Kumar Devarajan |
| author_sort | Gomathy Muthukrishanan |
| collection | DOAJ |
| description | Abstract Background The application of beneficial microbes in agriculture is gaining increasing attention as a means to reduce reliance on chemical fertilizers. This approach can potentially mitigate negative impacts on soil, animal, and human health, as well as decrease climate-changing factors. Among these microbes, yeast has been the least explored, particularly within the phyllosphere compartment. This study addresses this knowledge gap by investigating the potential of phyllosphere yeast to improve rice yield while reducing fertilizer dosage. Results From fifty-two rice yeast phyllosphere isolates, we identified three yeast strains—Rhodotorula paludigena Y1, Pseudozyma sp. Y71, and Cryptococcus sp. Y72—that could thrive at 36 °C and possessed significant multifarious plant growth-promoting traits, enhancing rice root and shoot length upon seed inoculation. These three strains demonstrated favorable compatibility, leading to the creation of a yeast consortium. We assessed the combined effect of foliar application of this yeast consortium and individual strains with two distinct recommended doses of chemical fertilizers (RDCFs) (75 and 100%), as well as RDCFs alone (75 and 100%), in rice maintained in pot-culture and field experiments. The pot-culture experiment investigated the leaf microbial community, plant biochemicals, root and shoot length during the stem elongation, flowering, and dough phases, and yield-related parameters at harvest. The field experiment determined the actual yield. Integrated results from both experiments revealed that the yeast consortium with 75% RDCFs was more effective than the yeast consortium with 100% RDCFs, single strain applications with RDCFs (75 and 100%), and RDCFs alone (75 and 100%). Additionally, this treatment improved leaf metabolite levels compared to control rice plants. Conclusions Overall, a 25% reduction in soil chemical fertilizers combined with yeast consortium foliar application improved rice growth, biochemicals, and yield. This study also advances the field of phyllosphere yeast research in agriculture. |
| format | Article |
| id | doaj-art-9ec407fa7dbb4e2aba8913fad8a3d01a |
| institution | Kabale University |
| issn | 2524-6372 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | BMC |
| record_format | Article |
| series | Environmental Microbiome |
| spelling | doaj-art-9ec407fa7dbb4e2aba8913fad8a3d01a2024-12-22T12:48:44ZengBMCEnvironmental Microbiome2524-63722024-12-0119112410.1186/s40793-024-00635-9Impact of foliar application of phyllosphere yeast strains combined with soil fertilizer application on rice growth and yieldGomathy Muthukrishanan0Jeyashri Munisamy1Sabarinathan Kuttalingam Gopalasubramaniam2Kizaharael Sevathapandian Subramanian3Rajakumar Dharmaraj4Dhruba Jyoti Nath5Pranab Dutta6Arun Kumar Devarajan7Department of Soil Science and Agricultural Chemistry, Agricultural College and Research Institute, Tamil Nadu Agricultural UniversityDepartment of Soil Science and Agricultural Chemistry, Agricultural College and Research Institute, Tamil Nadu Agricultural UniversityDepartment of Plant Pathology, Agricultural College and Research Institute, Tamil Nadu Agricultural UniversityDepartment of Nanotechnology, Tamil Nadu Agricultural UniversityAgricultural College and Research InstituteAssam Agricultural UniversityCentral Agricultural UniversityTamil Nadu Agricultural UniversityAbstract Background The application of beneficial microbes in agriculture is gaining increasing attention as a means to reduce reliance on chemical fertilizers. This approach can potentially mitigate negative impacts on soil, animal, and human health, as well as decrease climate-changing factors. Among these microbes, yeast has been the least explored, particularly within the phyllosphere compartment. This study addresses this knowledge gap by investigating the potential of phyllosphere yeast to improve rice yield while reducing fertilizer dosage. Results From fifty-two rice yeast phyllosphere isolates, we identified three yeast strains—Rhodotorula paludigena Y1, Pseudozyma sp. Y71, and Cryptococcus sp. Y72—that could thrive at 36 °C and possessed significant multifarious plant growth-promoting traits, enhancing rice root and shoot length upon seed inoculation. These three strains demonstrated favorable compatibility, leading to the creation of a yeast consortium. We assessed the combined effect of foliar application of this yeast consortium and individual strains with two distinct recommended doses of chemical fertilizers (RDCFs) (75 and 100%), as well as RDCFs alone (75 and 100%), in rice maintained in pot-culture and field experiments. The pot-culture experiment investigated the leaf microbial community, plant biochemicals, root and shoot length during the stem elongation, flowering, and dough phases, and yield-related parameters at harvest. The field experiment determined the actual yield. Integrated results from both experiments revealed that the yeast consortium with 75% RDCFs was more effective than the yeast consortium with 100% RDCFs, single strain applications with RDCFs (75 and 100%), and RDCFs alone (75 and 100%). Additionally, this treatment improved leaf metabolite levels compared to control rice plants. Conclusions Overall, a 25% reduction in soil chemical fertilizers combined with yeast consortium foliar application improved rice growth, biochemicals, and yield. This study also advances the field of phyllosphere yeast research in agriculture.https://doi.org/10.1186/s40793-024-00635-9YeastPhyllospherePlant growth-promoting microbesRiceCrop improvement |
| spellingShingle | Gomathy Muthukrishanan Jeyashri Munisamy Sabarinathan Kuttalingam Gopalasubramaniam Kizaharael Sevathapandian Subramanian Rajakumar Dharmaraj Dhruba Jyoti Nath Pranab Dutta Arun Kumar Devarajan Impact of foliar application of phyllosphere yeast strains combined with soil fertilizer application on rice growth and yield Environmental Microbiome Yeast Phyllosphere Plant growth-promoting microbes Rice Crop improvement |
| title | Impact of foliar application of phyllosphere yeast strains combined with soil fertilizer application on rice growth and yield |
| title_full | Impact of foliar application of phyllosphere yeast strains combined with soil fertilizer application on rice growth and yield |
| title_fullStr | Impact of foliar application of phyllosphere yeast strains combined with soil fertilizer application on rice growth and yield |
| title_full_unstemmed | Impact of foliar application of phyllosphere yeast strains combined with soil fertilizer application on rice growth and yield |
| title_short | Impact of foliar application of phyllosphere yeast strains combined with soil fertilizer application on rice growth and yield |
| title_sort | impact of foliar application of phyllosphere yeast strains combined with soil fertilizer application on rice growth and yield |
| topic | Yeast Phyllosphere Plant growth-promoting microbes Rice Crop improvement |
| url | https://doi.org/10.1186/s40793-024-00635-9 |
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