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Titolo:
Enzymatic response of olive varieties to parasitism by Xiphinema index (Nematoda : Longidoridae)
Autore:
Ridolfi, M; Patumi, M; DAddabbo, T; Sasanelli, N; Lemos, RJ;
Indirizzi:
CNR, Ist Ric Olivicoltura, I-80126 Perugia, Italy CNR Perugia Italy I-80126 , Ist Ric Olivicoltura, I-80126 Perugia, Italy CNR, Ist Nematol Agraria, I-70126 Bari, Italy CNR Bari Italy I-70126CNR, Ist Nematol Agraria, I-70126 Bari, Italy Direccao Reg Agr Beira Litoral, Coimbra, Portugal Direccao Reg Agr Beira Litoral Coimbra Portugal oral, Coimbra, Portugal
Titolo Testata:
RUSSIAN JOURNAL OF NEMATOLOGY
fascicolo: 1, volume: 9, anno: 2001,
pagine: 25 - 32
SICI:
0869-6918(2001)9:1<25:EROOVT>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
RESISTANCE; INFECTION; STRESS;
Keywords:
ascorbic acid; Olea europaea; peroxidase; phenols; phenylalanine ammonia-lyase; resistance; Xiphinema index;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Ridolfi, M CNR, Ist Ric Olivicoltura, I-80126 Perugia, Italy CNR PerugiaItaly I-80126 livicoltura, I-80126 Perugia, Italy
Citazione:
M. Ridolfi et al., "Enzymatic response of olive varieties to parasitism by Xiphinema index (Nematoda : Longidoridae)", RUSS J NEMA, 9(1), 2001, pp. 25-32

Abstract

Phenols content, phenylalanine ammonia lyase (PAL) and peroxidase (POD) activities were determined in leaves and roots of one cultivar (FS-17) and one rootstock (DA-12I) of olive (Olea europaea L.), uninfected and infected by different population densities of Xiphinema index 6 months after inoculation. The role of phenols and peroxidase in the response of olive to feedingby nematodes was confirmed by the experiment. Phenols content and PAL activity were higher in uninfected roots of DA-12I, whereas phenols increased and PAL decreased in the roots of both varieties in relation to the nematodeinoculum density. The variation of phenols qualitative profile in the roots of DA-12I suggested a translocation of oleuropein from the leaves to the roots in response to X. index feeding. POD activity increased in roots and leaves of DA-12I, but only in the leaves of FS-17. Analysis of kinetic parameters showed that the same POD isozyme is present in both varieties.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 16/07/20 alle ore 20:00:29