Independent responses to ultraviolet radiation and herbivore attack in broccoli

Kuhlmann F, Müller C (2009)
JOURNAL OF EXPERIMENTAL BOTANY 60(12): 3467-3475.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
The plant responses to ultraviolet-B radiation (UV-B) and to insect herbivory are believed to be partially similar. In this study, responses to these factors were investigated in the crop species broccoli (Brassica oleracea L. convar. botrytis, Brassicaceae). Plants were first grown under three UV-B regimes (80%, 23%, and 4% transmittance of ambient UV-B) in greenhouses covered with either innovative materials (high and medium transmittance) or conventional glass (low transmittance). Half of the plants then remained under these conditions, but the other half were transferred to the field with ambient light and herbivore access for up to 3 d. The plant responses to distinct environmental conditions were examined by analysing the morphological and chemical parameters of plants kept inside and plants exposed in the field. Furthermore, suitability of field-exposed plants to naturally occurring insects was investigated in relation to UV-B pretreatment. High levels of UV-B radiation led to increased flavonoid concentrations, but to a lower biomass accumulation in broccoli. These patterns remained after outdoor exposure. However, UV-induced changes of plant traits did not alter attractiveness to herbivorous insects: thrips, whiteflies, and aphids attacked plants independently of UV-B pretreatment. A 3-fold increase of indolyl glucosinolate concentrations occurred in above-ground tissue of all the plants, most likely due to massive herbivore attack after 3 d of field exposure. The results show that plants respond with high specificity to different abiotic and biotic impacts, demonstrating the separate perception and processing of stress factors.
Stichworte
glucosinolates; flavonoids; herbivory; metabolite induction; plant-insect interactions; plant responses; UV-B; Biomass; radiation; Brassicaceae
Erscheinungsjahr
2009
Zeitschriftentitel
JOURNAL OF EXPERIMENTAL BOTANY
Band
60
Ausgabe
12
Seite(n)
3467-3475
ISSN
0022-0957
eISSN
1460-2431
Page URI
https://pub.uni-bielefeld.de/record/1591197

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Kuhlmann F, Müller C. Independent responses to ultraviolet radiation and herbivore attack in broccoli. JOURNAL OF EXPERIMENTAL BOTANY. 2009;60(12):3467-3475.
Kuhlmann, F., & Müller, C. (2009). Independent responses to ultraviolet radiation and herbivore attack in broccoli. JOURNAL OF EXPERIMENTAL BOTANY, 60(12), 3467-3475. doi:10.1093/jxb/erp182
Kuhlmann, F., and Müller, C. (2009). Independent responses to ultraviolet radiation and herbivore attack in broccoli. JOURNAL OF EXPERIMENTAL BOTANY 60, 3467-3475.
Kuhlmann, F., & Müller, C., 2009. Independent responses to ultraviolet radiation and herbivore attack in broccoli. JOURNAL OF EXPERIMENTAL BOTANY, 60(12), p 3467-3475.
F. Kuhlmann and C. Müller, “Independent responses to ultraviolet radiation and herbivore attack in broccoli”, JOURNAL OF EXPERIMENTAL BOTANY, vol. 60, 2009, pp. 3467-3475.
Kuhlmann, F., Müller, C.: Independent responses to ultraviolet radiation and herbivore attack in broccoli. JOURNAL OF EXPERIMENTAL BOTANY. 60, 3467-3475 (2009).
Kuhlmann, Franziska, and Müller, Caroline. “Independent responses to ultraviolet radiation and herbivore attack in broccoli”. JOURNAL OF EXPERIMENTAL BOTANY 60.12 (2009): 3467-3475.

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PMID: 19542197
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