scholarly journals THE ROLE OF SLMYB GENE IN TOMATO FRUIT DEVELOPMENT

2017 ◽  
Vol 44 (3) ◽  
pp. 969-988
Keyword(s):  
Fruit Development ◽  
Tomato Fruit

scholarly journals Elucidating the functional role of endoreduplication in tomato fruit development

2011 ◽  
Vol 107 (7) ◽  
pp. 1159-1169 ◽  
Author(s):  
Christian Chevalier ◽  
Mehdi Nafati ◽  
Elodie Mathieu-Rivet ◽  
Matthieu Bourdon ◽  
Nathalie Frangne ◽  
...  
Keyword(s):  
Fruit Development ◽  
Functional Role ◽  
Tomato Fruit

scholarly journals Role of Vacuolar H+-inorganic Pyrophosphatase in Tomato Fruit Development

2012 ◽  
Vol 63 (15) ◽  
pp. 5613-5621 ◽  
Author(s):  
S. A. Mohammed ◽  
S. Nishio ◽  
H. Takahashi ◽  
K. Shiratake ◽  
H. Ikeda ◽  
...  
Keyword(s):  
Fruit Development ◽  
Tomato Fruit ◽  
Inorganic Pyrophosphatase

scholarly journals Carotenoid biosynthesis during tomato fruit development: regulatory role of 1-deoxy-D-xylulose 5-phosphate synthase

2000 ◽  
Vol 22 (6) ◽  
pp. 503-513 ◽  
Author(s):  
Luisa Maria Lois ◽  
Manuel Rodriguez-Concepcion ◽  
Francesca Gallego ◽  
Narciso Campos ◽  
Albert Boronat
Keyword(s):  
Fruit Development ◽  
Tomato Fruit ◽  
Carotenoid Biosynthesis ◽  
Regulatory Role ◽  
Phosphate Synthase

scholarly journals NMR-Based Tissular and Developmental Metabolomics of Tomato Fruit

Metabolites ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 93 ◽  
Author(s):  
Martine Lemaire-Chamley ◽  
Fabien Mounet ◽  
Catherine Deborde ◽  
Mickaël Maucourt ◽  
Daniel Jacob ◽  
...  
Keyword(s):  
Fruit Development ◽  
Compositional Data ◽  
Tomato Fruit ◽  
Fleshy Fruit ◽  
Metabolomic Profiling ◽  
Polar Metabolites ◽  
Fruit Processing ◽  
Fruit Mass ◽  
Complex Organ

Fruit is a complex organ containing seeds and several interconnected tissues with dedicated roles. However, most biochemical or molecular studies about fleshy fruit development concern the entire fruit, the fruit without seeds, or pericarp only. We studied tomato (Solanum lycopersicum) fruit at four stages of development (12, 20, 35, and 45 days post-anthesis). We separated the seeds and the other tissues, exocarp, mesocarp, columella with placenta and locular tissue, and analyzed them individually using proton NMR metabolomic profiling for the quantification of major polar metabolites, enzymatic analysis of starch, and LC-DAD analysis of isoprenoids. Pericarp tissue represented about half of the entire fruit mass only. The composition of each fruit tissue changed during fruit development. An ANOVA-PCA highlighted common, and specific metabolite trends between tissues e.g., higher contents of chlorogenate in locular tissue and of starch in columella. Euclidian distances based on compositional data showed proximities within and between tissues. Several metabolic regulations differed between tissues as revealed by the comparison of metabolite networks based on correlations between compounds. This work stressed the role of specific tissues less studied than pericarp but that impact fruit organoleptic quality including its shape and taste, and fruit processing quality.

scholarly journals Regulation of Tomato Fruit Development by Interacting MYB Proteins

2012 ◽  
Author(s):  
Rivka Barg ◽  
Erich Grotewold ◽  
Yechiam Salts
Keyword(s):  
Transcription Factor ◽  
Fruit Development ◽  
Cell Expansion ◽  
Tomato Fruit ◽  
Phase Iii ◽  
Vascular Bundles ◽  
Positive Regulator ◽  
Differential Cell ◽  
Myb Proteins

Background to the topic: Early tomato fruit development is executed via extensive cell divisions followed by cell expansion concomitantly with endoreduplication. The signals involved in activating the different modes of growth during fruit development are still inadequately understood. Addressing this developmental process, we identified SlFSM1 as a gene expressed specifically during the cell-division dependent stages of fruit development. SlFSM1 is the founder of a class of small plant specific proteins containing a divergent SANT/MYB domain (Barg et al 2005). Before initiating this project, we found that low ectopic over-expression (OEX) of SlFSM1 leads to a significant decrease in the final size of the cells in mature leaves and fruits, and the outer pericarp is substantially narrower, suggesting a role in determining cell size and shape. We also found the interacting partners of the Arabidopsis homologs of FSM1 (two, belonging to the same family), and cloned their tomato single homolog, which we named SlFSB1 (Fruit SANT/MYB–Binding1). SlFSB1 is a novel plant specific single MYB-like protein, which function was unknown. The present project aimed at elucidating the function and mode of action of these two single MYB proteins in regulating tomato fruit development. The specific objectives were: 1. Functional analysis of SlFSM1 and its interacting protein SlFSB1 in relation to fruit development. 2. Identification of the SlFSM1 and/or SlFSB1 cellular targets. The plan of work included: 1) Detailed phenotypic, histological and cellular analyses of plants ectopically expressing FSM1, and plants either ectopically over-expressing or silenced for FSB1. 2) Extensive SELEX analysis, which did not reveal any specific DNA target of SlFSM1 binding, hence the originally offered ChIP analysis was omitted. 3) Genome-wide transcriptional impact of gain- and loss- of SlFSM1 and SlFSB1 function by Affymetrix microarray analyses. This part is still in progress and therefore results are not reported, 4) Search for additional candidate partners of SlFSB1 revealed SlMYBI to be an alternative partner of FSB1, and 5) Study of the physical basis of the interaction between SlFSM1 and SlFSB1 and between FSB1 and MYBI. Major conclusions, solutions, achievements: We established that FSM1 negatively affects cell expansion, particularly of those cells with the highest potential to expand, such as the ones residing inner to the vascular bundles in the fruit pericarp. On the other hand, FSB1 which is expressed throughout fruit development acts as a positive regulator of cell expansion. It was also established that besides interacting with FSM1, FSB1 interacts also with the transcription factor MYBI, and that the formation of the FSB1-MYBI complex is competed by FSM1, which recognizes in FSB1 the same region as MYBI does. Based on these findings a model was developed explaining the role of this novel network of the three different MYB containing proteins FSM1/FSB1/MYBI in the control of tomato cell expansion, particularly during fruit development. In short, during early stages of fruit development (Phase II), the formation of the FSM1-FSB1 complex serves to restrict the expansion of the cells with the greatest expansion potential, those non-dividing cells residing in the inner mesocarp layers of the pericarp. Alternatively, during growth phase III, after transcription of FSM1 sharply declines, FSB1, possibly through complexing with the transcription factor MYBI serves as a positive regulator of the differential cell expansion which drives fruit enlargement during this phase. Additionally, a novel mechanism was revealed by which competing MYB-MYB interactions could participate in the control of gene expression. Implications, both scientific and agricultural: The demonstrated role of the FSM1/FSB1/MYBI complex in controlling differential cell growth in the developing tomato fruit highlights potential exploitations of these genes for improving fruit quality characteristics. Modulation of expression of these genes or their paralogs in other organs could serve to modify leaf and canopy architecture in various crops.

The Role of Hormones in Fruit Development

1950 ◽  
Vol 84 (815) ◽  
pp. 151-159 ◽  
Author(s):  
Felix G. Gustafson
Keyword(s):  
Fruit Development

scholarly journals PHYTOCHROMES B1/B2 ARE KEY REGULATORS OF EPIGENOME REPROGRAMMING DURING TOMATO FRUIT DEVELOPMENT

2020 ◽  
Author(s):  
Ricardo Bianchetti ◽  
Nicolas Bellora ◽  
Luis A de Haro ◽  
Rafael Zuccarelli ◽  
Daniele Rosado ◽  
...  
Keyword(s):  
Fruit Development ◽  
Epigenetic Modification ◽  
Tomato Fruit ◽  
Dna Demethylation ◽  
Temperature Perception ◽  
Genome Wide ◽  
Fruit Development And Ripening ◽  
Histone Modifying Enzymes ◽  
Level Of Understanding ◽  
Agronomical Traits

AbstractPhytochrome-mediated light and temperature perception has been shown to be a major regulator of fruit development. Furthermore, chromatin remodelling via DNA demethylation has been described as a crucial mechanism behind the fruit ripening process; however, the molecular basis underlying the triggering of this epigenetic modification remains largely unknown. Here, an integrative analyses of the methylome, siRNAome and transcriptome of tomato fruits from phyA and phyB1B2 null mutants was performed, revealing that PHYB1 and PHYB2 influences genome-wide DNA methylation during fruit development and ripening. The experimental evidence indicates that PHYB1B2 signal transduction relies on a gene expression network that includes chromatin organization factors (DNA methylases/demethylases, histone-modifying enzymes and remodelling factors) and transcriptional regulators, ultimately leading to altered mRNA profile of photosynthetic and ripening-associated genes. This new level of understanding provides insights into the orchestration of epigenetic mechanisms in response to environmental cues affecting agronomical traits in fleshy fruits.

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