CAJ | 학술논문

为明确纳米碳溶胶促进烤烟钾吸收的生理基础，利用水培试验和无菌培养试验，研究了不同浓度的纳米碳溶胶对两个烤烟品种根系生理特性、钾素吸收及其相关基因表达量的影响。结果表明：当纳米碳溶胶浓度（质量浓度）分别为10～20和5～10 mg/L时，能显著促进K326和红花大金元（红大）根系生长，增加根系和地上部生物量，提高烟叶钾素吸收及积累量。随着纳米碳溶胶浓度的升高，两个烤烟品种的根系活力、根系吸收面积、根系阳离子交换量和根系可溶性蛋白含量呈现先增加后降低的趋势。K326和红大K+通道基因NKT1和转运体基因NtHAK1的表达量显著增加，提高了根系对钾的吸收能力。
위명학납미탄용효촉진고연갑흡수적생리기출，이용수배시험화무균배양시험，연구료불동농도적납미탄용효대량개고연품충근계생리특성、갑소흡수급기상관기인표체량적영향。결과표명：당납미탄용효농도（질량농도）분별위10～20화5～10 mg/L시，능현저촉진K326화홍화대금원（홍대）근계생장，증가근계화지상부생물량，제고연협갑소흡수급적루량。수착납미탄용효농도적승고，량개고연품충적근계활력、근계흡수면적、근계양리자교환량화근계가용성단백함량정현선증가후강저적추세。K326화홍대K+통도기인NKT1화전운체기인NtHAK1적표체량현저증가，제고료근계대갑적흡수능력。
In order to reveal the physiological basis of potassium absorption promoted by nano-carbon sol, a water-culture experiment and an enclosed sterile culture experiment were carried out. The effects of nano-carbon sol application on the physiological characteristics of root system, potassium absorption and related gene expression level of flue-cured tobacco cv. K326 and cv. Hongda were studied. The results showed that at the concentrations of 10-20 and 5-10 mg/L, nano-carbon sol significantly promoted the growth of root system, increased the shoot and root biomass and improved potassium absorption and accumulation in leaves of K326 and Hongda. With the increase of nano-carbon sol concentration, the vigor, absorbing area, cation exchange capacity and soluble protein content of root system of K326 and Hongda increased first then decreased. The expression levels of K+ channel gene NKT1 and K+ transporter gene NtHAK1 in K326 and Hongda increased significantly, which promoted the potassium absorbing ability of root system.