Effect of tomato pleiotropic ripening mutations on flavour volatile biosynthesis

Kovács, Kármen; Fray, Rupert G.; Tikunov, Yury; Graham, Neil; Bradley, Glyn; Seymour, Graham B.; Bovy, Arnaud; Grierson, Donald

doi:10.1016/j.phytochem.2009.05.014

Cited by 41 publications

(26 citation statements)

References 35 publications

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“…These biochemical processes are highly regulated and contribute to the transformation of the fruit from an unpalatable and often toxic organ into one that is attractive and nutritious for seed-dispersing fauna (Barry, 2010;Klee and Giovannoni, 2011). The factors that regulate the ripening transition are not fully understood, although specific transcription factors belonging to the MADSbox and SQUAMOSA PROMOTER BINDING PRO-TEIN families are necessary for ripening and affect multiple aspects of the ripening process, including ethylene synthesis, softening, color change, and aroma volatile production (Herner and Sink, 1973;Sink et al, 1974;Vrebalov et al, 2002Vrebalov et al, , 2009Manning et al, 2006;Itkin et al, 2009;Kovács et al, 2009;Chung et al, 2010;Jaakola et al, 2010;Karlova et al, 2011;Martel et al, 2011;Seymour et al, 2011;Lee et al, 2012). In climacteric fruit such as tomato (Solanum lycopersicum), these transcription factors act upstream of ethylene biosynthesis and ethylene is required for full development of the ripe phenotype (Barry and Giovannoni, 2007;Klee and Giovannoni, 2011;Martel et al, 2011).…”

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“…Additionally, several mutants that alter different aspects of fruit quality do so through changes in either chloroplast or chromoplast biochemistry. For example, the high-pigment1 (hp-1), hp-2, and hp-3 loci possess altered chloroplast number and ultrastructure, contributing to fruits with elevated levels of chlorophyll, carotenoids, and flavonoids, together with altered patterns of aroma volatile production (Yen et al, 1997;Bino et al, 2005;Kolotilin et al, 2007;Galpaz et al, 2008;Kovács et al, 2009). Similarly, inhibition of chlorophyll degradation due to mutations in tomato and pepper (Capsicum annuum) homologs of the chloroplast-targeted STAY-GREEN protein of rice (Oryza sativa), are responsible for the green-flesh and chlorophyll retainer mutations of tomato and pepper that influence fruit color (Barry et al, 2008;Borovsky and Paran, 2008).…”

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Altered Chloroplast Development and Delayed Fruit Ripening Caused by Mutations in a Zinc Metalloprotease at the lutescent2 Locus of Tomato

et al. 2012

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The chloroplast is the site of photosynthesis in higher plants but also functions as the center of synthesis for primary and specialized metabolites including amino acids, fatty acids, starch, and diverse isoprenoids. Mutants that disrupt aspects of chloroplast function represent valuable tools for defining structural and biochemical regulation of the chloroplast and its interplay with whole-plant structure and function. The lutescent1 (l1) and l2 mutants of tomato (Solanum lycopersicum) possess a range of chlorophyll-deficient phenotypes including reduced rates of chlorophyll synthesis during deetiolation and enhanced rates of chlorophyll loss in leaves and fruits as they age, particularly in response to high-light stress and darkness. In addition, the onset of fruit ripening is delayed in lutescent mutants by approximately 1 week although once ripening is initiated they ripen at a normal rate and accumulation of carotenoids is not impaired. The l2 locus was mapped to the long arm of chromosome 10 and positional cloning revealed the existence of a premature stop codon in a chloroplast-targeted zinc metalloprotease of the M50 family that is homologous to the Arabidopsis (Arabidopsis thaliana) gene ETHYLENE-DEPENDENT GRAVITROPISM DEFICIENT AND YELLOW-GREEN1. Screening of tomato germplasm identified two additional l2 mutant alleles. This study suggests a role for the chloroplast in mediating the onset of fruit ripening in tomato and indicates that chromoplast development in fruit does not depend on functional chloroplasts.

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Altered Chloroplast Development and Delayed Fruit Ripening Caused by Mutations in a Zinc Metalloprotease at the lutescent2 Locus of Tomato

et al. 2012

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“…583 Apart from the deficiency in cis-3-hexenal, it does not 584 seem that the introgression of the alc allele affects the 585 concentration of other volatiles, as it has been reported in 586 the ripening mutant nor [10][11][12], which is allelic to alc 587 [16]. The comparison of the results obtained in this study 588 and the analyses performed with the same methodology or 589 the previously published results by other groups in other 590 varietal types [2, 33, 34], apart from the lack of cis-3-591 hexenal, only evidenced reduced levels of hexanal and 592 phenylacetaldehyde.…”

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Long-term postharvest aroma evolution of tomatoes with the alcobaça (alc) mutation

Casals

Cebolla-Cornejo

Roselló

et al. 2011

Eur Food Res Technol

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“…However, except for the paper of Bino et al (Bino et al, 2005), all the above functional genomics studies concern non-volatile compounds. Volatile metabolites not only contribute to the tomato fruit aroma (and hence the consumer 'taste experience') but also play a role in plant signalling, defence strategy and possibly, regulatory mechanisms (Kovács et al, 2009). The phenotypes of non-ripening mutants include effects on fruit colour and softening but also on aroma release.…”

Section: Tomato Metabolomics and Functional Genomics Studiesmentioning

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Metabolomics of a Model Fruit: Tomato

Vos

Hall

Moing

2011

Annual Plant Reviews Volume 43

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Tomato has quickly become a favoured species for metabolomics research. Tomato fills a niche that cannot be occupied by Arabidopsis, particularly regarding studies on fleshy fruit. Variations in genotype and phenotype have been broadly exploited using metabolomics approaches in order to gain a better understanding of fundamental aspects of plant physiology, fruit growth and fruit development. The commercial importance of tomato as one of the world's most important and widely grown and consumed vegetables is a significant driving force behind this fruit research. Therefore, many metabolomics studies have specifically been focused on traits of importance to the food and agro-industries. Fruit quality, nutritional value as well as the influence on these traits of fruit storage, transport and processing into pasteurized and cooked products have also been subjects for extensive metabolomics analyses. These studies have already considerably expanded our knowledge, and continue to do so, concerning many aspects of the tomato fruit phenotype, both visible and chemical. Furthermore, increased knowledge of the genetics of tomato, the recently available draft of the tomato genome sequence as well as the emerging technologies for next generation sequencing, large-scale phenotyping and systems biology approaches have generated many novel research concepts that are also placing metabolomics analyses of tomatoes right at the forefront of fruit research.

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Effect of tomato pleiotropic ripening mutations on flavour volatile biosynthesis

Cited by 41 publications

References 35 publications

Altered Chloroplast Development and Delayed Fruit Ripening Caused by Mutations in a Zinc Metalloprotease at the lutescent2 Locus of Tomato

Altered Chloroplast Development and Delayed Fruit Ripening Caused by Mutations in a Zinc Metalloprotease at the lutescent2 Locus of Tomato

Long-term postharvest aroma evolution of tomatoes with the alcobaça (alc) mutation

Metabolomics of a Model Fruit: Tomato

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