Variation of glucosinolates on position orders of flower buds in turnip rape (Brassica rapa)

Saudi Journal of Biological Sciences

Sun-Ju Kim¹  Paulrayer Antonisamy¹  Mariadhas Valan Arasu²  Yong-Han Yoon³  Na-Hyung Kim⁴ 

[1] Department of Bio-Environmental Chemistry, Chungnam National University, 99 Daehak-Ro, Yuseong-Gu, Daejeon 34134, Republic of Korea;Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;Department of Green Technology Convergence, College of Science and Technology, Konkuk University, Chungju 48666, Republic of Korea;Food and Drug Research Institute, Uiduk University, 261 Donghaedae-Ro, Gyeongju 38004, Republic of Korea;

关键词: Brassica napus;    Brassica rapa;    Flower buds;    Glucosinolates;    Position orders;   

DOI  :  10.1016/j.sjbs.2017.04.009

来源: DOAJ

【 摘 要 】

To glucosinolate (GSL) contents on flower buds depending on their position orders in turnip rape (Brassica rapa), three Japanese ‘Nabana’ cultivars such as cv. No. 21 (Brassica rapa, early type), cv. Husanohana (B. rapa, late type) and cv. Norin No. 20 (B. napus) were investigated using HPLC analysis. Ten GSLs including glucoraphanin, sinigrin, glucoalyssin, napoleiferin, gluconapin, 4-hydroxyglucobrassicin, glucobrassicanapin, glucobrassicin, and gluconasturtiin were detected. Differences in individual and total GSL contents were found between two plant varieties, which are also depending on various developmental stages. Among the GSLs, gluconapin (mean 23.11 μmole/g dry weight (DW) and glucobrassicanapin (mean 13.41 μmole/g DW) documented the most abundant compounds and contributed average 39 and 27% of the total GSLs, but indolyl and aromatic GSLs together accounted >10% of the total GSLs. The presence of significant quantities of gluconapin in the cultivars should be studied more extensively, since the GSL is mainly responsible for the bitter taste.

【 授权许可】

Unknown