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Titolo:
Elevation of extracellular beta-1,3-glucanase and chitinase activities in rose in response to treatment with acibenzolar-S-methyl and infection by D-rosae
Autore:
Suo, YY; Leung, DWM;
Indirizzi:
Univ Canterbury, Dept Plant & Microbial Sci, Christchurch 1, New Zealand Univ Canterbury Christchurch New Zealand 1 , Christchurch 1, New Zealand
Titolo Testata:
JOURNAL OF PLANT PHYSIOLOGY
fascicolo: 8, volume: 158, anno: 2001,
pagine: 971 - 976
SICI:
0176-1617(200108)158:8<971:EOEBAC>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYSTEMIC ACQUIRED-RESISTANCE; PATHOGENESIS-RELATED PROTEINS; CLADOSPORIUM-FULVUM; SALICYLIC-ACID; FUNGAL GROWTH; BENZOTHIADIAZOLE; INDUCTION; ELICITORS; TOBACCO; TOMATO;
Keywords:
beta-1,3-glucanase; BTH; chitinase; Diplocarpon rosae; disease resistance;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Suo, YY Univ Canterbury, Dept Plant & Microbial Sci, Private Bag 8004, Christchurch 1, New Zealand Univ Canterbury Private Bag 8004 Christchurch NewZealand 1 aland
Citazione:
Y.Y. Suo e D.W.M. Leung, "Elevation of extracellular beta-1,3-glucanase and chitinase activities in rose in response to treatment with acibenzolar-S-methyl and infection by D-rosae", J PLANT PHY, 158(8), 2001, pp. 971-976

Abstract

Changes in activities of beta -1,3-glucanase and chitinase were determinedin intercellular fluids of leaves of in vitro rose shoots at various timesafter treatment with acibenzolar-S-methyl (BTH, a benzothiadiazole derivative; trade name Bion 50WG) or inoculation with Diplocarpon rosae. The results indicate that BTH treatment led to enhanced activities of beta -1,3-glucanase and chitinase in the intercellular spaces of rose leaves. An increasein extracellular beta -1,3-glucanase and chitinase activities was also found in D. rosae-infected leaves. However, the increase in enzyme activities occurred much more rapidly and was more strongly enhanced in D. rosae-infected leaves that were previously treated with BTH, suggesting that the increased beta -1,3-glucanase and chitinase may play a role in restricting the development of disease symptoms on the rose leaves infected with D. rosae. The expression patterns of rose beta -1,3-glucanase and chitinase isoforms were investigated on native PAGE with specific staining techniques. A similar induction pattern of these enzymes was observed in both treatments. The increased beta -1,3-glucanase and chitinase activities are mainly due to theenhanced expression of beta -1,3-glucanase isoform G2 and chitinase isoforms C1 and C2. These isoforms are likely to be a part of rose defense responses to pathogen attack.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 19:57:02