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Titolo:
FACTORS AFFECTING DISCHARGE AND GERMINATION OF ASCOSPORES OF HYPOXYLON-MEDITERRANEUM (DE NOT) MILL
Autore:
VANNINI A; PAGANINI R; ANSELMI N;
Indirizzi:
UNIV TUSCIA,DIPARTIMENTO PROT PIANTE,VIA S CAMILLO LELLIS I-01100 VITERBO ITALY
Titolo Testata:
European journal of forest pathology
fascicolo: 1, volume: 26, anno: 1996,
pagine: 12 - 24
SICI:
0300-1237(1996)26:1<12:FADAGO>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENDOPHYTIC SYMBIOSIS; ESTABLISHMENT; RECOGNITION; FRAGIFORME; BRANCHES; BEECH; ASPEN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
A. Vannini et al., "FACTORS AFFECTING DISCHARGE AND GERMINATION OF ASCOSPORES OF HYPOXYLON-MEDITERRANEUM (DE NOT) MILL", European journal of forest pathology, 26(1), 1996, pp. 12-24

Abstract

Discharge and germination of ascospores of Hypoxylon mediterraneum (=Biscogniauxia mediterranea (De Not. ) O. Kuntze) were studied. Discharge and germination of ascospores depend on the presence of water or high relative air humidity. Ascospores are ejected from stromata in forest for most of the year following periods of high precipitation. H. mediterraneum ascospores germinated under a wide range of biotic and abiotic conditions. The optimal temperature for germination was 35 degreesC, but 25 and 30 degrees C were still favourable, while 20 and 40 degrees C reduced germination. Ascospores kept at 5 degrees C were able to germinate after short exposure to temperatures ranging from 20 to 35degrees C. Germination rate depended on the ascospore density in in vitro experiments, and was highest at 10(6) ascospore/ml. Tissues of some host plants greatly increased germination rare. In vivo, ascosporesgerminated better on wounded axillary tissues than on unwounded ones.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 12:54:20