Phosphate-solubilizing soil yeast Meyerozyma guilliermondii CC1 improves maize (Zea mays L.) productivity and minimizes requisite chemical fertilization |
| |
Authors: | Phanit Nakayan Asif Hameed Satnam Singh Li-Sen Young Mei-Hua Hung Chiu-Chung Young |
| |
Institution: | 1. Department of Soil & Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, 250, Kuo Kuang Rd., Taichung 402, Taiwan, Republic of China 3. Department of Biotechnology, College of Art and Science, National Formosa University, No.64, Wunhua Rd., Huwei Township, Yunlin County 632, Taiwan, Republic of China 2. Biotechnology Center, National Chung Hsing University, Taichung 402, Taiwan, Republic of China
|
| |
Abstract: | Aim Phosphate-solubilizing yeasts have been under-exploited in eco-friendly maize cultivation. In this regard, soil yeasts Meyerozyma guilliermondii CC1, Rhodotorula mucilaginosa CC2 and M. caribbica CC3 were investigated for their plant growth-promoting (PGP) activities. Methods Soil yeasts were isolated and characterized. Maize (Zea mays L. cv. Tainong No.1) and Chinese cabbage (Brassica rapa L. cv. Pekinensis) were used for seed bioassay. Growth-promoting effects of yeasts under greenhouse conditions were evaluated using maize and lettuce (Lactuca sativa L. cvs. Capitata and Taiwan sword leaf). Ultimately, M. guilliermondii CC1 was tested on field-grown maize; treatments included full-dose chemical fertilizers (CF), yeast (CC1), half-dose chemical fertilizers (½CF), CC1?+?½CF and control. Nutrient uptake, growth, and yield of maize and rhizospheric soil microbes were estimated. Results Strain M. guilliermondii CC1 exhibited better seed vigor index in maize and Chinese cabbage. CC1?+?½CF significantly improved the dry-weights, and nutrient uptakes of maize and sword leaf lettuce under greenhouse conditions. In field, CC1?+?½CF application exerted a pronounced effect on growth of maize, cob yield, nutrient-uptake and rhizospheric soil microbial counts. Conclusion Our results validated superior biochemical potency and PGP traits of M. guilliermondii CC1 that reduced requisite chemical fertilizer application without affecting the optimal productivity in maize. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|