More butenolides from plant-derived smoke with germination inhibitory activity against karrikinolide

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F18%3A00489994" target="_blank" >RIV/61388963:_____/18:00489994 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.sajb.2018.01.023" target="_blank" >http://dx.doi.org/10.1016/j.sajb.2018.01.023</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sajb.2018.01.023" target="_blank" >10.1016/j.sajb.2018.01.023</a>

Result language

angličtina

Original language name

More butenolides from plant-derived smoke with germination inhibitory activity against karrikinolide

Original language description

Plant-derived smoke is known to play an important role in promoting germination in the post-fire environment, thereby stimulating regeneration of vegetation from the soil seed bank following a fire. Several compounds with germination promotory activity have been identified in recent years, with one such compound, 3-methyl-2H-furo[2,3-c] pyran-2-one (karrikinolide, KAR1) known to be highly active in promoting germination of many plant species at low concentrations. In contrast, a related compound, (5RS)-3,4,5-trimethylfuran-2(5H)-one, also found in plant-derived smoke, was shown to have an antagonistic effect against KAR1, resulting in lowered germination levels when tested on light-sensitive 'Grand Rapids' lettuce seeds which usually have high germination levels when treated with KAR1. Considering the combination of such types of compounds in smoke, there is the possibility of smoke having a dual regulatory mechanism to control post-fire seedling emergence. Here we report the identification of two structurally related but enolides from plant-derived smoke with germination inhibitory activity, namely 5,5-dimethylfuran-2(5H)-one and (5RS)-5-ethylfuran-2(5H)-one. In the germination test system using light-sensitive 'Grand Rapids' lettuce seeds, the 5,5-dimethylfuran-2(5H)-one showed similar levels of activity against KAR1 as previously observed with the (5RS)-3,4,5-trimethylfuran-2(5H)-one, whereas the (5RS)-5-ethylfuran-2(5H)-one was approximately 100 times less active.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10401 - Organic chemistry

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

South African Journal of Botany

ISSN

0254-6299

e-ISSN

—

Volume of the periodical

115

Issue of the periodical within the volume

Mar

Country of publishing house

ZA - SOUTH AFRICA

Number of pages

8

Pages from-to

256-263

UT code for WoS article

000429451700038

EID of the result in the Scopus database

2-s2.0-85042586856