10.6084/M9.FIGSHARE.20479095
Han Li
Han
Li
Shenghua Fu
Shenghua
Fu
Jingwei Zhu
Jingwei
Zhu
Weichang Gao
Weichang
Gao
Lin Chen
Lin
Chen
Xiang Li
Xiang
Li
Shaoyu Zhang
Shaoyu
Zhang
Sha Zheng
Sha
Zheng
Heng Zhang
Heng
Zhang
Yanxia Liu
Yanxia
Liu
Nitric oxide generated by <i>Piriformospora indica</i>-induced nitrate reductase promotes tobacco growth by regulating root architecture and ammonium and nitrate transporter gene expression
<p>Nitric oxide (NO) is involved not only in the regulation of plant growth, development, and stress responses but also in the regulation of plant-microbe interactions. Here, we demonstrate that <i>Piriformospora indica</i> can induce tobacco nitrate reductase to produce a NO signal in roots which enhances nitrogen uptake capacity by inducing the expression of ammonium and nitrate transporter genes and the development of lateral root and root hair, thereby promoting tobacco growth. In addition, the NO signal induced by <i>P. indica</i> is significantly different from that induced by the pathogen <i>Phytophthora nicotianae</i>. Inoculation with <i>P. indica</i> did not produce H<sub>2</sub>O<sub>2</sub> and maintained high expression of <i>Phytoglobin 1</i> in roots, resulting in a significantly lower NO level than in the roots inoculated with <i>P. nicotianae</i>. These findings suggest that an appropriate NO level is the likely basis of plant-<i>P. indica</i> symbiosis, which promotes the growth of host plants.</p>
Microbiology
Genetics
Ecology
Developmental Biology
Mental Health
Infectious Diseases
Plant Biology
Taylor & Francis
2022
2022-08-12
2023-06-11
Journal contribution
19120 Bytes
10.1080/17429145.2022.2108926
CC BY 4.0