CAJ | 학술논문

以不同浓度（0，2 mg·L－1，5 mg·L－1，10 mg·L－1，20 mg·L－1）吲哚乙酸（IAA ）对小白菜进行处理，分析其对小白菜生长和硫代葡萄糖苷（硫苷）含量的影响。结果表明，随着IAA处理浓度的提高，显著增加了小白菜地上部的鲜重，但增幅有所降低。与对照相比，IAA处理浓度为5～20 mg·L－1时，显著诱导了总脂肪族硫苷、总吲哚族硫苷和总硫苷含量的提高，而IAA处理均显著提高了芳香族2－苯乙基硫苷的含量。对单个硫苷来说，在IAA处理浓度为5～20 mg·L－1时，5－甲基亚磺酰戊基硫苷和3－丁烯基硫苷含量得到显著提高；而4－戊烯基硫苷、吲哚－3－甲基硫苷和4－甲氧基吲哚－3－甲基硫苷在外源IAA处理下，呈现先增加后降低的趋势，其中4－戊烯基硫苷在较低IAA处理浓度下（2 mg·L－1）即显著高于对照；另外，1－甲氧基吲哚－3－甲基硫苷随着IAA处理浓度的增加呈现递增趋势。此外，随IAA处理浓度的增加，总脂肪族硫苷相对百分含量有增加的趋势，但总吲哚族硫苷相对百分含量呈递减趋势，而芳香族硫苷呈现先增加后降低的趋势。可见，对于7种硫苷来说，不同IAA处理浓度下有不同的响应，具有一定的浓度效应。
이불동농도（0，2 mg·L－1，5 mg·L－1，10 mg·L－1，20 mg·L－1）신타을산（IAA ）대소백채진행처리，분석기대소백채생장화류대포도당감（류감）함량적영향。결과표명，수착IAA처리농도적제고，현저증가료소백채지상부적선중，단증폭유소강저。여대조상비，IAA처리농도위5～20 mg·L－1시，현저유도료총지방족류감、총신타족류감화총류감함량적제고，이IAA처리균현저제고료방향족2－분을기류감적함량。대단개류감래설，재IAA처리농도위5～20 mg·L－1시，5－갑기아광선무기류감화3－정희기류감함량득도현저제고；이4－무희기류감、신타－3－갑기류감화4－갑양기신타－3－갑기류감재외원IAA처리하，정현선증가후강저적추세，기중4－무희기류감재교저IAA처리농도하（2 mg·L－1）즉현저고우대조；령외，1－갑양기신타－3－갑기류감수착IAA처리농도적증가정현체증추세。차외，수IAA처리농도적증가，총지방족류감상대백분함량유증가적추세，단총신타족류감상대백분함량정체감추세，이방향족류감정현선증가후강저적추세。가견，대우7충류감래설，불동IAA처리농도하유불동적향응，구유일정적농도효응。
The effects of IAA with different concentrations (0 ,2 mg·L-1 ,5 mg·L-1 ,10 mg·L-1 ,20 mg·L-1 ) on the growth and the glucosinolate contents were studied in pakchoi shoots .The results showed that more biomass of pak-choi could be achieved with the spray of exogenous IAA at higher concentration .Compared with control ,the contents of aliphatic glucosinolate ,indole glucosinolate ,and the total glucosinolates were induced significantly by 5~20 mg·L-1 IAA ,and those of aromatic glucosinolate/gluconasturtiin could be significantly increased with any IAA treatment .For in-dividual glucosinolate ,gluclyssin and gluconapin contents were significantly increased by 5~20 mg·L-1 IAA .Neverthe-less ,the contents of glucobrassicanapin ,glucobrassicin and 4-methoxy-glucobrassicin became increased first and then de-creased .Particularly ,glucobrassicanapin content was significantly higher than the control even with 2 mg·L-1 IAA treat-ment .In addition ,the contents of neoglucobrassicin and relative percentage of aliphatic glucosinolate tended to increase with the increase of exogenous IAA concentrations ,whereas the relative percentage of indole glucosinolate showed a de-creasing trend .Moreover ,aromatic glucosinolate tended to become increased first and then decreased .It could be con-cluded that all seven kinds of glucosinolates in pakchoi exhibited different responses to different IAA treatments .