Abstract:
:In the current study, we investigated the influences of theobroxide on stem elongation in spinach (Spinacia oleracea). Our results showed that stem elongation and flower formation were inhibited by spraying spinach plants with theobroxide under inductive, long day conditions (16 h light/8 h dark), while application of exogenous applied GA3 prevented the effect of theobroxide. Quantitative analysis showed that theobroxide suppressed GA1 biosynthesis, whereas the endogenous content of jasmonic acid was unchanged. However, under short day conditions (10 h light/14 h dark), there were no differences in stem length between treated and untreated plants. These results suggest that the inhibition of stem elongation by theobroxide is probably due to the suppression of gibberellin biosynthesis.
journal_name
J Plant Physioljournal_title
Journal of plant physiologyauthors
Kong F,Gao X,Nam KH,Takahashi K,Matsuura H,Yoshihara Tdoi
10.1016/j.jplph.2005.05.005subject
Has Abstractpub_date
2006-03-01 00:00:00pages
557-61issue
5eissn
0176-1617issn
1618-1328pii
S0176-1617(05)00193-8journal_volume
163pub_type
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