CAJ | 학술논문

以模式植物拟南芥为研究材料,探讨了Ca在拟南芥根生长发育及抵御盐胁迫过程中的重要生理作用。结果表明,低Ca条件会导致拟南芥幼苗鲜质量降低、抑制主根生长、侧根发育及根毛发育与生长。研究发现,50 mmol/L NaCl胁迫会导致对照培养植物产生1个细胞质Ca2+([Ca2+]cyt)升高峰值,为0.325μmol/L；而低Ca培养植物产生3个[Ca2+]cyt升高值,升高频率明显增多,最高达0.467μmol/L,是对照的1.40倍。由此推断,低Ca条件使植物对盐胁迫更敏感。
이모식식물의남개위연구재료,탐토료Ca재의남개근생장발육급저어염협박과정중적중요생리작용。결과표명,저Ca조건회도치의남개유묘선질량강저、억제주근생장、측근발육급근모발육여생장。연구발현,50 mmol/L NaCl협박회도치대조배양식물산생1개세포질Ca2+([Ca2+]cyt)승고봉치,위0.325μmol/L；이저Ca배양식물산생3개[Ca2+]cyt승고치,승고빈솔명현증다,최고체0.467μmol/L,시대조적1.40배。유차추단,저Ca조건사식물대염협박경민감。
We choose Arabidopsis as material. The research studies on the important physiology role of calcium in root development and resistance to salt stress. In this study,the fresh weight,primary root,lateral roots and root hairs of Arabidopsis thaliana were all inhibited on the calcium deprivation media. The plants grown on control media were evoked a transient rise of cytosolic Ca2+( [ Ca2+] cyt ) by 50 mmol/L NaCl,while the plants grown on calcium deprivation media were evoked three. The peaks of signal were 0. 325,0. 476 μmol/L,respectively. It is suggested the plants were more sensitive to salt stress under the calcium deprivation condition.