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Titolo:
1-MCP blocks ethylene-induced petal abscission of Pelargonium peltatum butthe effect is transient
Autore:
Cameron, AC; Reid, MS;
Indirizzi:
Michigan State Univ, Dept Hort, E Lansing, MI 48824 USA Michigan State Univ E Lansing MI USA 48824 Hort, E Lansing, MI 48824 USA Univ Calif Davis, Davis, CA 95616 USA Univ Calif Davis Davis CA USA 95616Univ Calif Davis, Davis, CA 95616 USA
Titolo Testata:
POSTHARVEST BIOLOGY AND TECHNOLOGY
fascicolo: 2, volume: 22, anno: 2001,
pagine: 169 - 177
SICI:
0925-5214(200105)22:2<169:1BEPAO>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
X-HORTORUM BAILEY,L.H.; 1-METHYLCYCLOPROPENE; DOMESTICUM; FLOWERS; PLANTS; RESPONSIVENESS; ACCUMULATION; TEMPERATURE; POLLINATION; TRANSCRIPTS;
Keywords:
ethylene; 1-methylcyclopropene; 1-MCP; postharvest; petal abscission; flower senescence; ivy geranium;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Cameron, AC Michigan State Univ, Dept Hort, E Lansing, MI 48824 USA Michigan State Univ E Lansing MI USA 48824 sing, MI 48824 USA
Citazione:
A.C. Cameron e M.S. Reid, "1-MCP blocks ethylene-induced petal abscission of Pelargonium peltatum butthe effect is transient", POSTH BIOL, 22(2), 2001, pp. 169-177

Abstract

Continual exposure to 1.5 mul l(-1) ethylene caused 100% petal abscission within 2 h from detached flowers of Pelargonium peltatum (L. ) 'Pink Blizzard' (ivy geranium) harvested just after the stigmatic lobes had separated. When flowering plants were first pretreated for 2 h with 1 mul l(-1) 1-MCP, ethylene-induced petal abscission was completely inhibited. However, the effect was transient, since percent abscission increased with time after I-MCP treatment. Based on percent abscission from detached flowers after a 2-h ethylene exposure, the half-life of I-MCP activity was about 2, 3 and 6 days after I-MCP treatment at 25, 20.7, and 12 degreesC, respectively, and there was no evidence for a residual effect after 4 or 5 days at 25 and 20.7 degreesC, respectively. A second application of I-MCP renewed the inhibitoryeffect. Following I-MCP treatment, the force required to separate petals from the flower declined linearly with time. The time until complete loss ofthe inhibitory effect was strongly temperature dependent, e.g. approximateto 1 day at 25 degreesC versus 3-4 days at 12 degreesC. The usefulness of 1-MCP as a commercial treatment to prevent petal abscission from Pelargoniums will depend on shipping and storage temperature and application frequency. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 31/03/20 alle ore 21:56:23