Myrigalone A Inhibits Lepidium sativum Seed Germination by Interference with Gibberellin Metabolism and Apoplastic Superoxide Production Required for Embryo Extension Growth and Endosperm Rupture

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F12%3A00374859" target="_blank" >RIV/61389030:_____/12:00374859 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/12:33118175

Result on the web

<a href="http://dx.doi.org/10.1093/pcp/pcr124" target="_blank" >http://dx.doi.org/10.1093/pcp/pcr124</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/pcp/pcr124" target="_blank" >10.1093/pcp/pcr124</a>

Result language

angličtina

Original language name

Myrigalone A Inhibits Lepidium sativum Seed Germination by Interference with Gibberellin Metabolism and Apoplastic Superoxide Production Required for Embryo Extension Growth and Endosperm Rupture

Original language description

Myrica gale L. (sweet gale) fruit leachate contains myrigalone A (MyA), a rare C-methylated dihydrochalcone and putative allelochemical, which is known to be a phytotoxin impeding seedling growth. We found that MyA inhibited Lepidium sativum L. seed germination in a dose-dependent manner. MyA did not affect testa rupture, but inhibited endosperm rupture and the transition to subsequent seedling growth. MyA inhibited micropylar endosperm cap (CAP) weakening and the increase in the growth potential of theradical/hypocotyl region (RAD) of the embryo, both being key processes required for endosperm rupture. We compared the contents of abscisic acid (ABA) and gibberellins in the tissues and found that the major bioactive forms of gibberellin in L. sativumseed tissues were GA(4) and GA(6), while GA(8) and GA(13) were abundant inactive metabolites. MyA did not appreciably affect the ABA contents, but severely interfered with gibberellin metabolism and signaling by inhibiting important steps

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EF - Botany

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2012

Confidentiality

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

Name of the periodical

Plant and Cell Physiology

ISSN

0032-0781

e-ISSN

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Volume of the periodical

53

Issue of the periodical within the volume

1

Country of publishing house

JP - JAPAN

Number of pages

15

Pages from-to

81-95

UT code for WoS article

000299127600008

EID of the result in the Scopus database

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