| Title: | TPS-b family genes involved in signature aroma terpenes emission in ripe kiwifruit |
| Author(s): | Wang X; Zeng Y; Nieuwenhuizen NJ; Atkinson RG; |
| Address: | "Key Laboratory of Horticultural Plant Biology, National R&D Centre for Citrus Preservation, College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, P.R. China. The New Zealand Institute for Plant and Food Research Limited, Auckland, New Zealand" |
| DOI: | 10.1080/15592324.2021.1962657 |
| ISSN/ISBN: | 1559-2324 (Electronic) 1559-2316 (Print) 1559-2316 (Linking) |
| Abstract: | "Aroma is a critical factor influencing consumer acceptability of ripe fruit. When fruit are eaten, the aroma travels retronasally from the mouth into the olfactory receptors located in the nose after exhaling. In kiwifruit (Actinidia spp.), terpene volatiles such as alpha-terpinolene and 1,8-cineole have been shown to contribute to the characteristic aroma of ripe fruit. Notably, 1,8-cineole contributes a key floral/eucalyptus note to the aroma of ripe A. chinensis 'Hort16A' kiwifruit, based on sensory descriptive and discriminant analysis. Emission of alpha-terpinolene and 1,8-cineole in kiwifruit is induced by ethylene, and production peaks when fruit are at eating ripeness. Two monoterpene synthase TPS-b family genes have been isolated from the fruit of A. arguta and A. chinensis that produce alpha-terpinolene and 1,8-cineole, respectively. Here we discuss terpene volatiles with respect to fruit aroma and consumer sensory evaluation, analyze the gene structure and conserved motifs of TPS-b genes in published kiwifruit genomes and then construct a transcriptional regulatory network based on Actinidia TPS-b. These data provide further insights into the potential molecular mechanisms underlying signature monoterpene synthesis to improve flavor in kiwifruit" |
| Keywords: | "Actinidia/*chemistry/*genetics/*metabolism Crops, Agricultural/chemistry/genetics/metabolism Fruit/chemistry/genetics/*metabolism Gene Expression Regulation, Plant Genes, Plant Genetic Variation Genotype *Odorants Plant Breeding Terpenes/*metabolism Volat;" |
| Notes: | "MedlineWang, Xiaoyao Zeng, Yunliu Nieuwenhuizen, Niels J Atkinson, Ross G eng Comparative Study Research Support, Non-U.S. Gov't 2021/08/10 Plant Signal Behav. 2021 Nov 2; 16(11):1962657. doi: 10.1080/15592324.2021.1962657. Epub 2021 Aug 9" |
