CAJ | 학술논문

利用从我国蜈蚣草主要分布地区收集到的不同蜈蚣草基因型进行田间试验,评价他们耐砷和富集砷的能力.试验结果表明,蜈蚣草基因型在株高、生物量、羽叶数上都表现出显著的不同.株高变化范围为29.6～68.2 cm;每株羽叶数变化范围为18.0～60.0个;每株地上部鲜重变化为150～540 g;每株根鲜重变化范围为20.3～94.9 g. 蜈蚣草基因型地上部和根部的砷浓度也表现出显著差异.地上部砷积累浓度变化范围为643.10～3009.03 mg·kg-1,根部砷积累浓度变化范围为26.34～112.38 mg·kg-1. 基因型C108地上部积累砷最多,显著大于其它蜈蚣草基因型;研究还发现,蜈蚣草基因型间的转运系数和生物富集系数也存在显著差异. 相关分析显示,蜈蚣草富集砷的量与株高、羽叶数、芽苞数等生长特性呈正相关.
이용종아국오공초주요분포지구수집도적불동오공초기인형진행전간시험,평개타문내신화부집신적능력.시험결과표명,오공초기인형재주고、생물량、우협수상도표현출현저적불동.주고변화범위위29.6～68.2 cm;매주우협수변화범위위18.0～60.0개;매주지상부선중변화위150～540 g;매주근선중변화범위위20.3～94.9 g. 오공초기인형지상부화근부적신농도야표현출현저차이.지상부신적루농도변화범위위643.10～3009.03 mg·kg-1,근부신적루농도변화범위위26.34～112.38 mg·kg-1. 기인형C108지상부적루신최다,현저대우기타오공초기인형;연구환발현,오공초기인형간적전운계수화생물부집계수야존재현저차이. 상관분석현시,오공초부집신적량여주고、우협수、아포수등생장특성정정상관.
Some Pteris vittata genotypes, collected from different locations of China, were planted in pots to evaluate their ability in As tolerance and accumulation. Results showed that there were dramatic difference in plant height, biomass and frond number. The plant height ranged from 29.6 to 68.2 cm, frond number from 18.0 to 60.0 per plant, shoot fresh weight from 150 to 540 g per plant and root fresh weight from 20.3 to 94.9 g per plant. The distinct difference among the genotypes was also found in shoot and root As accumulation, ranging from 643.10 to 3009.03 mg·kg-1 and from 26.34 to 112.38 mg·kg-1, respectively. It was found that accession C108 had the highest As accumulation in shoot, being significantly higher than all other accessions. There was a significant difference among the accessions of Pteris vittata in both transporting factor (TF) and biological factor (BF). There was a positive association between As accumulation and some growth characters, including plant height, frond and bud numbers, and shoot fresh weight.