Change search
ReferencesLink to record
Permanent link

Direct link
Resistance against beet armyworms and cotton aphids in caffeine-producing transgenic chrysanthemum
Show others and affiliations
2011 (English)In: PLANT BIOTECHNOLOGY, ISSN 1342-4580, Vol. 28, no 4, 393-395 p.Article in journal (Refereed) Published
Abstract [en]

Transgenic chrysanthemum plants were constructed to simultaneously express three N-methyltransferases involved in caffeine biosynthetic pathways. Resulting plants produced caffeine at approximately 3 mu g g(-1) fresh tissue, and were tested for herbivore repellence. When starved second-instar caterpillars of beet armyworms (Spodoptera exigu) were allowed to feed, they ate up to 4.4 mm(2) of leaf discs from the wild type plants, while less than 1.5 mm(2) of those from the transgenic plants. When third-instars of cotton aphid (Aphis gossypii) were subjected to a choice-test, 27 gathered on wild type leaves, and 6 on transgenic leaves. These results indicate that caffeine-producing chrysanthemum is resistant against herbivores, lepidoptera caterpillars and aphids, both being one of the most serious pests in agriculture. We propose that the method can be practically applied to a variety of important plant species to confer resistance against biotic stresses.

Place, publisher, year, edition, pages
2011. Vol. 28, no 4, 393-395 p.
Keyword [en]
Aphis gossypii, caffeine, chemical defense, chrysanthemum, Spodoptera exigu
National Category
Botany Microbiology Agricultural Biotechnology
URN: urn:nbn:se:su:diva-66874DOI: 10.5511/plantbiotechnology.11.0510aISI: 000295797900006OAI: diva2:468975
authorCount :7Available from: 2011-12-22 Created: 2011-12-21 Last updated: 2011-12-22Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Department of Botany
BotanyMicrobiologyAgricultural Biotechnology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 104 hits
ReferencesLink to record
Permanent link

Direct link