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Intra-specific differences in root and shoot glucosinolate profiles among white cabbage (Brassica oleracea var. capitata) cultivars

Kabouw, P. and Biere, A. and Van der Putten, W.H. and Van Dam, N.M. (2010) Intra-specific differences in root and shoot glucosinolate profiles among white cabbage (Brassica oleracea var. capitata) cultivars. Journal of Agricultural and Food Chemistry, 58, 411-417. ISSN 0021-8561.

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Official URL: http://dx.doi.org/10.1021/jf902835k

Abstract

Shoot glucosinolate profiles of Brassicaceae are known to vary within species, across environmental conditions, and between developmental stages. Here we study whether root profiles follow the intra-specific, environmental, and developmental variation observed for aerial parts in white cabbage cultivars. We also assess whether greenhouse studies can be used to predict shoot and root glucosinolate concentrations and profiles in the field. Root glucosinolate profiles showed significant intra-specific variation; however, this variation was unrelated to that in shoot profiles. One of the strongest determinants of the diversity in the root profiles was 2-phenylethyl glucosinolate (gluconasturtiin). Root profiles were generally comparable between greenhouse studies and field trials, whereas shoot profiles were highly plastic. We conclude that among white cabbage cultivars, shoot glucosinolate profiles are not indicative of root profiles. We further conclude that greenhouse assessments of root glucosinolates can be reliable predictors of root glucosinolate profiles in the field due to their low plasticity.

Item Type:Article
Institutes:Nederlands Instituut voor Ecologie (NIOO)
ID Code:6441
Deposited On:01 Jul 2010 02:00
Last Modified:31 Mar 2014 10:56

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