| Title: | "Piriformospora indica colonization increases the growth, development, and herbivory resistance of sweet potato (Ipomoea batatas L.)" |
| Author(s): | Li Q; Kuo YW; Lin KH; Huang W; Deng C; Yeh KW; Chen SP; |
| Address: | "Sanming Academy of Agricultural Sciences, Sanming, Fujian, China. Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam. Fujian Seed General Station, Fuzhou, Fujian, China. Institute of Plant Biology, National Taiwan University, Taipei, Taiwan. Sanming Academy of Agricultural Sciences, Sanming, Fujian, China. tw00058329@gmail.com" |
| DOI: | 10.1007/s00299-020-02636-7 |
| ISSN/ISBN: | 1432-203X (Electronic) 0721-7714 (Linking) |
| Abstract: | "Piriformospora indica symbiosis promoted the growth and photosynthesis, and simultaneously enhanced the resistance against insect herbivory by regulating sporamin-dependent defense in sweet potato. Piriformospora indica (P. indica), a versatile endophytic fungus, promotes the growth and confers resistance against multiple stresses by root colonization in plant hosts. In this study, the effects of P. indica colonization on the growth, physiological change, and herbivore resistance of leaf-vegetable sweet potato cultivar were investigated. P. indica symbiosis significantly improved the biomass in both above- and under-ground parts of sweet potato plants. In comparison with the non-colonized plants, the content of photosynthetic pigments and the efficiency of photosynthesis were increased in P. indica-colonized sweet potato plants. Further investigation showed that the activity of catalase was enhanced in both leaves and roots of sweet potato plants after colonization, but ascorbate peroxidase, peroxidase, and superoxide dismutase were not enhanced. Furthermore, the interaction between P. indica and sweet potato plants also showed the biological function in jasmonic acid (JA)-mediated defense. The plants colonized by P. indica had greatly increased JA accumulation and defense gene expressions, including IbNAC1, IbbHLH3, IbpreproHypSys, and sporamin, leading to elevated trypsin inhibitory activity, which was consistent with a reduced Spodoptera litura performance when larvae fed on the leaves of P. indica-colonized sweet potato plants. The root symbiosis of P. indica is helpful for the plant promoting growth and development and has a strong function as resistance inducers against herbivore attack in sweet potato cultivation by regulating sporamin-dependent defense" |
| Keywords: | Animals Basidiomycota/*physiology Cyclopentanes/*metabolism Endophytes Herbivory Ipomoea batatas/genetics/growth & development/*microbiology/physiology Oxylipins/*metabolism Photosynthesis Plant Diseases/*microbiology/parasitology Plant Growth Regulators/; |
| Notes: | "MedlineLi, Qing Kuo, Yun-Wei Lin, Kuan-Hung Huang, Weiqun Deng, Caisheng Yeh, Kai-Wun Chen, Shi-Peng eng 2018N0069/Fujian Provincial Department of Science and Technology/ 2020N0201/Fujian Provincial Department of Science and Technology/ 2017NZ0002-2/Fujian Provincial Department of Science and Technology/ Germany 2020/11/25 Plant Cell Rep. 2021 Feb; 40(2):339-350. doi: 10.1007/s00299-020-02636-7. Epub 2020 Nov 24" |
