Refereed journal article or data article (A1)

Drought Effects on Proanthocyanidins in Sainfoin (Onobrychis viciifolia Scop.) Are Dependent on the Plant's Ontogenetic Stage




List of AuthorsCarsten Malisch, Juha-Pekka Salminen, Roland Kölliker, Marica Therese Engström, Daniel Suter, Bruno Studer, Andreas Lüscher

PublisherACS

Publication year2016

JournalJournal of Agricultural and Food Chemistry

Journal acronymJAFC

Volume number64

Issue number49

Start page9307

End page9316

Number of pages10

ISSN0021-8561

eISSN1520-5118

DOIhttp://dx.doi.org/10.1021/acs.jafc.6b02342


Abstract

Sainfoin
(Onobrychis viciifolia Scop.) is a forage legume, which improves animal
health and the environmental impact of livestock farming due to its
proanthocyanidin content. To identify the impact of drought on
acetone/water extractable proanthocyanidin (PA) concentration and
composition in the generative and vegetative stage, a rain exclosure
experiment was established. Leaves of 120 plants from five different
sainfoin accessions were sampled repeatedly and analyzed by
UPLC-ESI-MS/MS. The results showed distinct differences in response to
drought between vegetative and generative plants. While vegetative
plants showed a strong response to drought in growth (-56%) and leaf PA
concentration (+46%), generative plants showed no response in growth
(-2%) or PA concentration (-9%). The PA composition was stable across
environments. The five accessions varied in PA concentrations and
composition but showed the same pattern of response to the experimental
treatments. These results show that the ontogenetic stage at which
drought occurs significantly affects the plant’s response.


Last updated on 2021-24-06 at 10:17