6533b873fe1ef96bd12d5f91
RESEARCH PRODUCT
Arthropod-induced neoplastic formations on trees change photosynthetic pigment levels and oxidative enzyme activities
Agnese GailiteGederts IevinshUna Andersonesubject
biologyHost (biology)digestive oral and skin physiologyfood and beveragesPlant SciencePhotosynthetic pigmentPhotosynthesisdigestive systemPolyphenol oxidasedigestive system diseaseschemistry.chemical_compoundPigmentfluids and secretionschemistryvisual_artOxidative enzymeBotanybiology.proteinvisual_art.visual_art_mediumGallEcology Evolution Behavior and SystematicsPeroxidasedescription
Abstract In order to test the hypothesis that arthropod-induced neoplastic formations on trees affect biochemical characteristics of both the newly formed galls and host plant tissues, biochemical characteristics with a possible adaptive role were determined in nine gall-former–host tree combinations. Photosynthetic pigments, extractable protein content, and oxidative enzyme activities were determined in gall tissues, leaf tissues of galled leaves, and leaves on ungalled tree branches. Neoplastic tissues were characterized by a low content of photosynthetic pigments, decreased chlorophyll a/b ratio, lower extractable protein content, and decreased activities of peroxidase and polyphenol oxidase as compared with ungalled host leaf tissues. In galled leaves or in leaves adjacent to galls, increased level of peroxidase activity was found. In several gall-inducer–host plant combinations, galled host plant tissues contained increased activity of polyphenol oxidase as well. The presented data reflect long-term ...
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-03-01 | Journal of Plant Interactions |