Research Progress in Plant Non-Symbiotic Hemoglobin
Plant non-symbiotic hemoglobin (nsHb) genes are ubiquitous in plants. Many biotic and abioticstresses induce the expression of nsHb. nsHb plays important roles in plant growth and development, as well asstress conditions. The mechanism of nsHb function has a close relationship with nitric oxide (NO) metabolism.In this review, the expression characteristics, the biological function and the mechanism of nsHb function aresummarized.