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Titolo:
Costs of jasmonate-induced responses in plants competing for limited resources
Autore:
van Dam, NM; Baldwin, IT;
Indirizzi:
Max Planck Inst Chem Ecol, D-07745 Jena, Germany Max Planck Inst Chem Ecol Jena Germany D-07745 ol, D-07745 Jena, Germany
Titolo Testata:
ECOLOGY LETTERS
fascicolo: 1, volume: 1, anno: 1998,
pagine: 30 - 33
SICI:
1461-023X(199807)1:1<30:COJRIP>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
NICOTIANA-ATTENUATA; GERMINATION; INHIBITORS; RESISTANCE; ALLOCATION; DEFENSE; GROWTH; SMOKE; CUES;
Keywords:
costs; induced responses; intraspecific plant competition; methyl jasmonate; Nicotiana attenuata; nitrogen; optimal defence theory; resource availability; resource competition;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: van Dam, NM Max Planck Inst Chem Ecol, Tatzendpromenade 1A, D-07745 Jena, Germany Max Planck Inst Chem Ecol Tatzendpromenade 1A Jena Germany D-07745
Citazione:
N.M. van Dam e I.T. Baldwin, "Costs of jasmonate-induced responses in plants competing for limited resources", ECOL LETT, 1(1), 1998, pp. 30-33

Abstract

We present a design to quantify fitness consequences of jasmonate-induced responses in plants that are competing for limited resources with a conspecific. Under both high and low nitrogen supply rates, uninduced (control) Nicotiana attenuata plants growing next to a plant induced with 250 mu g methyl jasmonate (MJ) yielded more seed capsules than control plants competing with another control plant. We conclude that there is a opportunity benefitfor control plants growing next to an induced plant. Initially, MJ-inducedplants grew more slowly, but by senescence they had produced the same number of seed capsules as control plants that had competed with another control plant. Replacement series showed that the fitness of MJ-induced plants isnot influenced by the competitive status of their neighbour plant. We argue that competitive designs are useful tools for evaluating the phenotypic costs of ecologically important traits.

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Documento generato il 25/11/20 alle ore 15:53:23