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Titolo:
EFFECTS OF ASCOCHYTA BLIGHT CAUSED BY MYCOSPHAERELLA-PINODES ON THE TRANSLOCATION OF CARBOHYDRATES AND NITROGENOUS COMPOUNDS FROM THE LEAF AND HULL TO THE SEED OF DRIED-PEA
Autore:
GARRY G; TIVOLI B; JEUFFROY MH; CITHAREL J;
Indirizzi:
INRA,PATHOL VEGETALE STN,BP 29 F-35650 LE RHEU FRANCE INRA,INAPG,AGRON LAB F-78850 THIVERVAL GRIGNON FRANCE UNIV RENNES 1,LAB PHYSIOL VEGETALE F-35042 RENNES FRANCE
Titolo Testata:
Plant Pathology
fascicolo: 4, volume: 45, anno: 1996,
pagine: 769 - 777
SICI:
0032-0862(1996)45:4<769:EOABCB>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
PISUM-SATIVUM-L; POWDERY MILDEW; POD; GROWTH; LEAVES; PLANTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
31
Recensione:
Indirizzi per estratti:
Citazione:
G. Garry et al., "EFFECTS OF ASCOCHYTA BLIGHT CAUSED BY MYCOSPHAERELLA-PINODES ON THE TRANSLOCATION OF CARBOHYDRATES AND NITROGENOUS COMPOUNDS FROM THE LEAF AND HULL TO THE SEED OF DRIED-PEA", Plant Pathology, 45(4), 1996, pp. 769-777

Abstract

The effects of Ascochyta blight (caused by Mycosphaerella pinodes) onchanges in dry weight and in water, carbohydrate, nitrogen and free amino acid contents were studied in the leaf, the hull and the seeds onthe second fructifer node of pea (Pisum sativum). Pea plants were grown in a glasshouse and inoculated with various concentrations of conidia at the beginning of seed filling, with uninoculated plants as controls. Disease induced a premature water loss of hulls and leaves, accelerated seed desiccation and reduced seed weight. Biochemical analyses revealed a decline in the carbohydrate content and a lower nitrogen remobilization in diseased leaves and hulls. Thus, Ascochyta blight alters carbohydrate metabolism, protein remobilization and free amino acidtranslocation from these organs. Disease also reduced carbohydrate and nitrogen content in seeds and, in case of high disease severity, thecarbohydrate/nitrogen ratio in the seeds was also affected (seed protein concentration increased and starch concentration decreased).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/10/20 alle ore 00:54:22