Piriformospora indica symbiosis improves water stress tolerance of rice through regulating stomata behavior and ROS scavenging systems
- 1 February 2020
- journal article
- research article
- Published by Taylor & Francis Ltd in Plant Signaling & Behavior
- Vol. 15 (2), 1722447
- https://doi.org/10.1080/15592324.2020.1722447
Abstract
Global water shortage seriously threatens rice growth especially in irrigated production areas. Association of plants with beneficial soil microbes is one strategy for plant adaption to environmental stresses. In this study, rice (Oryza sativa L.) plants were colonized by the beneficial root-colonizing endophytic fungus Piriformospora indica (P. indica). We demonstrate that grain yield were higher in P. indica-colonized rice plants compared to the uncolonized plants grown in soil. Moreover, P. indica effect on improving water stress tolerance in rice and its physiological mechanism were investigated in a hydroponic culture system. Polyethylene glycol (PEG) was applied to the culture solution to conduct the water stress condition. Water stress-induced leaf wilting and impairments in photosynthetic efficiency were diminished in P. indica-colonized plants. Furthermore, P. indica colonization promotes stomata closure and increases the leaf surface temperature under water stress. The malondialdehyde level (as an indicator for oxidative stress) was lower and the reduced to oxidized glutathione ratio was higher in P. indica-colonized and PEG-exposed rice plants compared to the uncolonized plants. Furthermore, the activities of the antioxidant enzymes catalase and glutathione reductase were up-regulated in inoculated rice seedlings under water stress. In conclusion, P. indica promotes rice performance under water stress by stomata closure and lower oxidative stress.Keywords
Funding Information
- Ministry of Science and Technology in Taiwan (MOST104-2311-B-002-010 and MOST105-2311-B-002-003)
This publication has 83 references indexed in Scilit:
- Reactive oxygen species generation and signaling in plantsPlant Signaling & Behavior, 2012
- Drought and Salt Stress Tolerance of an Arabidopsis Glutathione S-Transferase U17 Knockout Mutant Are Attributed to the Combined Effect of Glutathione and Abscisic AcidPlant Physiology, 2012
- The root endophyte fungusPiriformospora indicaleads to early flowering, higher biomass and altered secondary metabolites of the medicinal plant,Coleus forskohliiPlant Signaling & Behavior, 2012
- Septation of Infectious Hyphae Is Critical for Appressoria Formation and Virulence in the Smut Fungus Ustilago MaydisPLoS Pathogens, 2011
- Ascorbate and Glutathione: The Heart of the Redox HubPlant Physiology, 2011
- Progress studies of drought-responsive genes in ricePlant Cell Reports, 2010
- A Phosphate Transporter from the Root Endophytic Fungus Piriformospora indica Plays a Role in Phosphate Transport to the Host PlantOnline Journal of Public Health Informatics, 2010
- Mechanisms of Salinity ToleranceAnnual Review of Plant Biology, 2008
- REACTIVE OXYGEN SPECIES: Metabolism, Oxidative Stress, and Signal TransductionAnnual Review of Plant Biology, 2004
- ASCORBATE AND GLUTATHIONE: Keeping Active Oxygen Under ControlAnnual Review of Plant Physiology and Plant Molecular Biology, 1998