Intraplant Variations of Sesquiterpene Lactone Content in Lettuce Genetic Resources Grown in Two Cultivation Seasons

• 발행기관: 한국자원식물학회
• 저자명: Awraris Derbie Assefa Susanna Choi Jung-Sook Sung On-Sook Hur Na-Young Ro Sok Young Lee Ho-Sun Lee Jae Eun Lee Ju-Hee Rhee
• 간행물 정보: 『한국자원식물학회지』제31권 제5호, 538~546쪽, 전체 9쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2018.10.30

영문 초록

Inflorescence, stem, and leaf samples of lettuce grown in a greenhouse in spring and autumn seasons were assayed for sesquiterpene lactones (SLs) content by high performance liquid chromatography. The concentrations of SLs were significantly higher in the inflorescences followed by upper leaf and stem compared to the other plant parts in most of the samples. SLs content (sum of lactucin and lactucopicrin) in various tissues of lettuce cultivated in spring season varied from 5.7 to 22.5 fold ranging from 27.4 ㎍/g dry weight (DW) in the upper stem (cultivar “PI 176588”) as the lowest to as high as 2,292.0 ㎍/g DW in the inflorescence (cultivar “709849-1”). During autumn cultivation, the concentration of SLs varied from 2.0 to 14.4 fold ranging from as low of 32.4 ㎍/g DW in the lower stem (cultivar “PI176588”) to as high of 838.0 ㎍/g DW in the upper leaf (cultivar “Dambaesangchu”). Higher lactucin (1.2 to 5.6 fold) and lactucopicrin (1.1 to 3.9 fold) concentration was observed during spring compared to autumn cultivation in most of the samples. SLs content in various organs of lettuce increases from the basal plant part going upwards. As lactucin and lactucopicrin are the major SLs which affects the sensory property of lettuce, their quantitative variation in the lettuce cultivars is useful for breeding new varieties with better consumer acceptance.

목차

Introduction

Materials and Methods

Results and Discussions

Acknowledgement

References

키워드

Inflorescence Lactuca sativa Lactuca serriola Lactucin Lactucopicrin Leaf Stem