Synthesis of a 13C-labelled seed-germination inhibitor (3,4,5-trimethylfuran-2(5H)-one) for the mode of action elucidation

2018 ◽  
Vol 149 (8) ◽  
pp. 1475-1480
Author(s):  
Martin Pošta ◽  
Vilmos Soós ◽  
Petr Beier
Keyword(s):  
Seed Germination ◽  
Mode Of Action ◽  
Germination Inhibitor

ChemInform Abstract: ISOLATION, STRUCTURE, AND SYNTHESIS OF 4-HYDROXYISOXAZOLE (TRIUMFEROL), A SEED GERMINATION INHIBITOR FROM AN AFRICAN PLANT

1982 ◽  
Vol 13 (1) ◽  
Author(s):  
T. KUSUMI ◽  
C. G. CHANG ◽  
M. WHEELER ◽  
I. KUBO ◽  
K. NAKANISHI ◽  
...  
Keyword(s):  
Seed Germination ◽  
Germination Inhibitor

Isolation, structure and synthesis of 4-hydroxyisoxazole (triumferol), a seed germination inhibitor from an african plant

1981 ◽  
Vol 22 (36) ◽  
pp. 3451-3454 ◽  
Author(s):  
Takenori Kusumi ◽  
Conway C. Chang ◽  
Margaret Wheeler ◽  
Isao Kubo ◽  
Koji Nakanishi ◽  
...  
Keyword(s):  
Seed Germination ◽  
Germination Inhibitor

Inhibition of germination in Amaranthus albus seeds by prolonged irradiation: a physiological basis

1991 ◽  
Vol 1 (1) ◽  
pp. 51-56 ◽  
Author(s):  
R. B. Taylorson
Keyword(s):  
Seed Germination ◽  
Mode Of Action ◽  
Direct Inhibition ◽  
Physiological Basis ◽  
Incandescent Light ◽  
Radicle Elongation ◽  
Prolonged Irradiation ◽  
Time Required

AbstractAmaranthus albus L. seeds able to germinate in darkness can be prevented from germinating by prolonged irradiation with incandescent light (CIL). The germination in darkness is controlled by pre-existent Pfr. Allowing the seeds to remain in darkness for about 16 h allows an escape from the inhibition by CIL, about comparable with the time required to escape from pre-existent Pfr control. By examining escape from low fluence far-red (FR), it was found that no escape occurred in CIL. It was concluded that the mode of action of CIL in inhibiting A. albus seed germination involved prevention of the action of the pre-existent Pfr and a subsequent dormancy which does not allow a response to the Pfr generated by the incandescent light. Other actions of CIL were found but were considered less likely as causative for the inhibition of germination. One was a direct inhibition of radicle elongation and another involved prevention of an increased responsiveness to Pfr induced by treatment at 40°C.

A Structure-Activity Relationship Study on a Natural Germination Inhibitor, 2-Methoxy-4-vinylphenol (MVP), in Wheat Seeds to Evaluate its Mode of Action

2007 ◽  
Vol 62 (9-10) ◽  
pp. 694-700 ◽  
Author(s):  
Hossein Reza Darabi ◽  
Shabnam Mohandessi ◽  
Yadollah Balavar ◽  
Kioumars Aghapoor
Keyword(s):  
Mode Of Action ◽  
Competitive Inhibition ◽  
Preharvest Sprouting ◽  
Structural Elements ◽  
Inhibition Study ◽  
Germination Inhibitor ◽  
Structure Activity ◽  
Methoxy Groups ◽  
Natural Analogues ◽  
Wheat Seeds

The first aim of the present study was to evaluate which structural elements of the 2- methoxy-4-vinylphenol (MVP) molecule (1) are responsible for its observed activity as germination inhibitor in wheat seeds. To find its mode of action, a series of compounds with varying functional moieties and substitution patterns were prepared and evaluated for their inhibitory activity. This systematic competitive inhibition study characterized two criteria for the effective increase of the inhibiting ability: (i) ortho substitution to each of the hydroxy and methoxy groups; (ii) alkene moiety on the ring. Understanding how the structure of natural compounds relates to their inhibition function is fundamentally important and may help to facilitate their application as novel inhibitors to restrain preharvest sprouting (PHS) in wheat fields. In this regard, in MVP and its natural analogues 8 and 9 as the most active inhibitors, the ortho substitution of hydroxy and methoxy groups plays a key role in their activity and, as well, the alkene moiety influences the activity significantly.

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