Barbarea, W.T.Aiton

Agerbirk, Niels, Hansen, Cecilie Cetti, Olsen, Carl Erik, Kiefer, Christiane, Hauser, Thure P., Christensen, Stina, Jensen, Karen R., Ørgaard, Marian, Pattison, David I., Lange, Conny Bruun Asmussen, Cipollini, Don & Koch, Marcus A., 2021, Glucosinolate profiles and phylogeny in Barbarea compared to other tribe Cardamineae (Brassicaceae) and Reseda (Resedaceae), based on a library of ion trap HPLC-MS / MS data of reference desulfoglucosinolates, Phytochemistry (112658) 185, pp. 1-19 : 7

publication ID 10.1016/j.phytochem.2021.112658


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2.2.1. Endemic Australian Barbarea View in CoL View at ENA species

Our previous investigations of Barbarea GSL profiles had focused on species from the Northern temperate zone ( Agerbirk et al., 2003 a, 2015), while many other species of the genus appeared to be poorly known with respect to chemistry. For the purpose of investigating distantly related species, we turned to two endemic Australian species, Barbarea australis Hook f. and Barbarea grayi Hewson. Both species contained expectable homoPhe and Trp derived GSLs in leaves and roots ( Table 3 View Table 3 ), and no surprising GSLs were observed. Rather, PE and the usual derivatives BAR and EBAR were dominating GSLs, along with expectable indole GSLs.

Seed GSLs of B. australis had already been reported ( Agerbirk and Olsen, 2011), and included most of the GSLs from leaves and roots (except substituted Trp-derived) as well as low levels of 6 ′ -isoferuloyl derivatives of the major seed GSLs PE and BAR. Seed GSLs of B. grayi were analyzed for this report and contained the expected isoferuloylated GSLs known from the genus, but at rather low levels ( Table 3 View Table 3 ). A large number of putative aliphatic GSLs and derivatives of the major GSLs were searched for but not found ( Table 3 View Table 3 ).

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