期刊论文

Response of growth and development of rice cultivars with different cadmium accumulation to removing NO

中文

植物营养与肥料学报

1008-505X

2021

27

02

322-331

10.11674/zwyf.20225

国家重点研发计划项目（2018YFD0800500）； 国家自然科学基金区域创新发展联合基金重点项目（U19A2050）；

本校为第一机构

【目的】研究一氧化氮(NO)对镉(Cd)胁迫下水稻苗期生理生化及氮代谢响应的调节作用,探讨通过清除NO提高水稻耐Cd能力的措施。 【方法】以Cd高积累(TN1)和Cd低积累(春江06)品种为材料,进行了Cd胁迫(40 μmol/L)水培试验。以Cd胁迫营养液为对照,在对照基础上设置添加硝普钠(Cd+SNP)、添加NO清除剂CPTIO(Cd+CPTIO)、添加硝酸还原酶抑制剂钨酸钠(Cd+TU)处理,共4个处理。处理后12天,测定不同处理对水稻幼苗生长、NO_3~–-N分配、根系特性及光合特性的影响。 【结果】 NO对高Cd和低Cd积累水稻品种的影响不同。与对照相比,Cd+SNP处理降低高Cd积累水稻品种幼苗地上部和地下部NO_3~–-N含量,但对幼苗生物...

【Objectives】 Nitric oxide (NO) is an active signal molecule that can influence plants response to various stress. This study evaluates the regulatory effect of NO on the physiological, biochemical and nitrogen metabolism of rice seedlings under Cd stress. 【Methods】 Rice cultivars of high and low Cd accumulation (TN1 and Chunjiang 06) were investigated in Cd stress (40 μmol/L) hydroponic trials. The treatments included Cd stress solution (i.e., control), the addition of sodium nitroprusside to increase NO content (Cd+SNP), the addition of C...