Record ID No. |
5008 |
Author(s) |
Zhi-Lei Liu, Yuan-Jing Li, Hong-Yan Hou, Xian-Can Zhu, Vandna Rai, Xing-Yuan He, *Chun-Jie Tian , 2013 |
Affiliation |
Lab of Soil Microbiology and Nutrient Cycle, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Ji-Lin 130102, PR China, *Email: tiancj@neigae.ac.cn |
Title |
Differences in the arbuscular mycorrhizal fungi-improved rice resistance to low temperature at two N levels: Aspects of N and C metabolism on the plant side |
Source. Vol.(no):Page |
Plant Physiology and Biochemistry 71(October): 87–95p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biochemistry |
Sub-subjects |
Hormones |
Host |
Oryza Sativa |
Organism |
Arbuscular Mycorrhizal Fungi (AMF) |
Country |
China, East Asia |
Abstracts |
We performed an experiment to determine how N and C metabolism is involved in the low-temperature tolerance of mycorrhizal rice (Oryza sativa) at different N levels and examined the possible signaling molecules involved in the stress response of mycorrhizal rice. Pot cultures were performed, and mycorrhizal rice growth was evaluated based on treatments at two temperatures (15 °C and 25 °C) and two N levels (20 mg pot−1 and 50 mg pot−1). The arbuscular mycorrhizal fungi (AMF) colonization of rice resulted in different responses of the plants to low and high N levels. The mycorrhizal rice with the low N supplementation had more positive feedback from the symbiotic AMF, as indicated by accelerated N and C metabolism of rice possibly involving jasmonic acid (JA) and the up-regulation of enzyme activities for N and C metabolism. Furthermore, the response of the mycorrhizal rice plants to low temperature was associated with P uptake and nitric oxide (NO). |