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Marmesin, a new phytoalexin associated with resistance of parsley to pathogens after harvesting
Year:
2002
Source of publication :
Postharvest Biology and Technology
Authors :
Afek, Uzi
;
.
Aharoni, Nehemia
;
.
Orenstein, Janeta
;
.
Volume :
24
Co-Authors:
Afek, U., Department of Postharvest Science of Fresh Produce, Gilat Experiment Station, Agricultural Research Organization, Mobile Post Negev 2, 85-280, Israel
Orenstein, J., Department of Postharvest Science of Fresh Produce, Gilat Experiment Station, Agricultural Research Organization, Mobile Post Negev 2, 85-280, Israel
Carmeli, S., School of Chemistry, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel
Aharoni, N., Department of Postharvest Science of Fresh Produce, ARO, Volcani Center, Bet Dagan, 50250, Israel
Facilitators :
From page:
89
To page:
92
(
Total pages:
4
)
Abstract:
The study tested two parsley (Petroslinum crispum) cultivars, 'Janet' (resident) and 'Hazera' (susceptible), that differ in their response to the fungus Botrytis cinera Pers. During the 4 days after inoculation with B. cinerea, at 24 °C, concentrations of (+)marmesin in leaves sampled from 'Janet' and 'Hazera' increased from 17 to 145 μg g-1 fresh weight (FW) and from 8 to 25 μg g-1 FW, respectively. After the 4th day, levels decreased. Incidence of decay (necrotic areas) in 'Janet' and 'Hazera' leaves 4 days post-inoculation with B. cinerea, at 24 °C, were 4 and 68 mm2, respectively. EC50 values of (+) marmesin for the pathogenic fungi B. cinerea, Alternaria alternata (Fr.) Keissler and Sclerotinta sclerotiorum (Lib) De Bray in vitro were found to be 30, 40 and 25 μg ml -1, respectively. (+)Marmesin levels were highly correlated with resistance. © 2002 Elsevier Science B.V. All rights reserved.
Note:
Related Files :
Alternaria
Alternaria alternata
Botrytis
fungi
parsley
Petroselinum crispum
Petroslinum
Petroslinum crispum
phytoalexin
Show More
Related Content
More details
DOI :
10.1016/S0925-5214(01)00186-7
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
26970
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:27
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Scientific Publication
Marmesin, a new phytoalexin associated with resistance of parsley to pathogens after harvesting
24
Afek, U., Department of Postharvest Science of Fresh Produce, Gilat Experiment Station, Agricultural Research Organization, Mobile Post Negev 2, 85-280, Israel
Orenstein, J., Department of Postharvest Science of Fresh Produce, Gilat Experiment Station, Agricultural Research Organization, Mobile Post Negev 2, 85-280, Israel
Carmeli, S., School of Chemistry, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel
Aharoni, N., Department of Postharvest Science of Fresh Produce, ARO, Volcani Center, Bet Dagan, 50250, Israel
Marmesin, a new phytoalexin associated with resistance of parsley to pathogens after harvesting
The study tested two parsley (Petroslinum crispum) cultivars, 'Janet' (resident) and 'Hazera' (susceptible), that differ in their response to the fungus Botrytis cinera Pers. During the 4 days after inoculation with B. cinerea, at 24 °C, concentrations of (+)marmesin in leaves sampled from 'Janet' and 'Hazera' increased from 17 to 145 μg g-1 fresh weight (FW) and from 8 to 25 μg g-1 FW, respectively. After the 4th day, levels decreased. Incidence of decay (necrotic areas) in 'Janet' and 'Hazera' leaves 4 days post-inoculation with B. cinerea, at 24 °C, were 4 and 68 mm2, respectively. EC50 values of (+) marmesin for the pathogenic fungi B. cinerea, Alternaria alternata (Fr.) Keissler and Sclerotinta sclerotiorum (Lib) De Bray in vitro were found to be 30, 40 and 25 μg ml -1, respectively. (+)Marmesin levels were highly correlated with resistance. © 2002 Elsevier Science B.V. All rights reserved.
Scientific Publication
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