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Titolo:
A MECHANISM FOR INDUCING PLANT DEVELOPMENT - THE GENESIS OF A SPECIFIC INHIBITOR
Autore:
SMITH CE; RUTTLEDGE T; ZENG ZX; OMALLEY RC; LYNN DG;
Indirizzi:
UNIV CHICAGO,SEARLE CHEM LAB,5735 ELLIS AVE CHICAGO IL 60637 UNIV CHICAGO,SEARLE CHEM LAB CHICAGO IL 60637
Titolo Testata:
Proceedings of the National Academy of Sciences of the United Statesof America
fascicolo: 14, volume: 93, anno: 1996,
pagine: 6986 - 6991
SICI:
0027-8424(1996)93:14<6986:AMFIPD>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
BINDING ACTIVITY INVITRO; MONOAMINE-OXIDASE; REDOX REGULATION; ACTIVATION; DNA; TRANSCRIPTION; INACTIVATION; THIOREDOXIN; QUINONES; SIGNALS;
Keywords:
INDUCTION; REDOX REACTION; STRIGA; PLANT PARASITE; HAUSTORIAL DEVELOPMENT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
36
Recensione:
Indirizzi per estratti:
Citazione:
C.E. Smith et al., "A MECHANISM FOR INDUCING PLANT DEVELOPMENT - THE GENESIS OF A SPECIFIC INHIBITOR", Proceedings of the National Academy of Sciences of the United Statesof America, 93(14), 1996, pp. 6986-6991

Abstract

Parasitic strategies are widely distributed in the plant kingdom and frequently involve coupling parasite organogenesis with cues from the host. In Striga asiatica, for example, the cues that initiate the development of the host attachment organ, the haustorium, originate in thehost and trigger the transition from vegetative to parasitic mode in the root meristem. This system therefore offers a unique opportunity to study the signals and mechanisms that control plant cell morphogenesis. Here we establish that the biological activity of structural analogs of the natural inducer displays a marked dependence on redox potential and suggest the existence of a semiquinone intermediate. Building on chemistry that exploits the energetics of such an intermediate, cyclopropyl-p-benzoquinone (CPBQ) is shown to be a specific inhibitor of haustorial development. These data are consistent with a model where haustorial development is initiated by the completion of a redox circuit.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/01/20 alle ore 03:20:57