A cDNA clone coding for a gibberellin (GA) 20-oxidase ( CcGA20ox1), an enzyme of GA biosynthesis, which when expressed in vitro catalyzed the conversion of GA(12) to GA(9) and of GA(53) to GA(20), was isolated from the citrus hybrid Carrizo citrange (C itrus sinensis x Poncirus trifoliata).
CcGA20ox1 is a gene encoding a GA 20-oxidase, a gibberellin (GA) biosynthetic enzyme, previously isolated from the citrus hybrid Carrizo citrange (Citrus sinensis (L.) Osbeck x Poncirus trifoliata (L.) Raf.). Southern blot analysis of genomic DNA of Carrizo citrange with CcGA20ox1 suggested the
Carrizo citrange (Citrus sinensisxPoncirus trifoliata) is a citrus hybrid widely used as a rootstock, whose genetic manipulation to improve different growth characteristics is of high agronomic interest. In this work, transgenic Carrizo citrange plants have been produced overexpressing sense and
The effect of arbuscular mycorrhiza (AM) symbiosis on plant growth is associated with the balance between costs and benefits. A feedback regulation loop has been described in which the higher carbohydrate cost to plants for AM symbiosis is compensated by increases in their photosynthetic rates.
Two distinct Phytophthora taxa were found to be associated with brown rot of pomelo (Citrus grandis), a new disease of this ancestral Citrus species, in the Vinh Long province, Mekong River Delta area, southern Vietnam. On the basis of morphological characters and using the ITS1-5.8S-ITS2 region of
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