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https://www.readbyqxmd.com/read/28534677/modeling-tomato-ripening-based-on-carotenoid-raman-spectroscopy-experimental-versus-kinetic-model
#1
Daniel Martin, Alicia G Gonzalvez, Rocio Mateos Medina, Angel González Ureña
This work reports on a combined experimental and theoretical investigation on the carotenoid Raman signal in several tomato fruits during their postharvest time evolution and ripening. Both resonant (180°) backscattering and polarized (90°) Raman scattering were used to monitor the most prominent bands of carotenoid (lycopene and β-carotene) evolution in different tomato varieties. Relevant findings of the present investigations were that while the depolarization ratio of the ν1 band hardly changed with time, the Raman ν1 band intensity did change showing a similar pattern for all tomatoes investigated...
June 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28529757/enzyme-activities-and-gene-expression-of-starch-metabolism-provide-insights-into-grape-berry-development
#2
Xudong Zhu, Chaobo Zhang, Weimin Wu, Xiaopeng Li, Chuan Zhang, Jinggui Fang
Grapes are categorized as a non-climacteric type of fruit which its ripening is not associated to important rises in respiration and ethylene synthesis. The starch metabolism shares a certain role in the carbohydrate metabolic pathways during grape berry development, and is regarded as an important transient pool in the pathway of sugar accumulation. However, the comprehensive role of starch and its contribution to the quality and flavor of grape berry have not been explored thoroughly. In this study, the expression levels of genes enzyme activities and carbohydrate concentrations related to starch metabolism, were analyzed to understand the molecular mechanism of starch accumulation during grape berry development...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28522390/mango-kernel-starch-as-a-novel-edible-coating-for-enhancing-shelf-life-of-tomato-solanum-lycopersicum-fruit
#3
Anjum Nawab, Feroz Alam, Abid Hasnain
Mango kernel starch (MKS) coatings containing different plasticizers were used to extend the shelf life of tomato. The coating slurry was prepared by gelatinizing 4% mango kernel starch, plasticized with glycerol, sorbitol and their 1:1 mixture (50% of starch weight; db). The samples were kept at room temperature (20°C) and analyzed for shelf life. Significant difference in coated and control fruits were observed and all the coated fruits delayed ripening process that was characterized by reduction in weight loss and restricted changes in soluble solids concentration, titratable acidity, ascorbic acid content, firmness and decay percentage compared to uncoated sample...
May 15, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28516293/the-dominant-allele-aft-induces-a-shift-from-flavonol-to-anthocyanin-production-in-response-to-uv-b-radiation-in-tomato-fruit
#4
Stefano Catola, Antonella Castagna, Marco Santin, Valentina Calvenzani, Katia Petroni, Andrea Mazzucato, Annamaria Ranieri
The introgression of the A ft allele into domesticated tomato induced a shift from flavonol to anthocyanin production in response to UV-B radiation, while the hp - 1 allele negatively influenced the response of flavonoid biosynthesis to UV-B. Introgression of the dominant allele Anthocyanin fruit (Aft) from Solanum chilense induces anthocyanin accumulation in the peel of tomato (Solanum lycopersicum L.) fruit. UV-B radiation can influence plant secondary metabolism regulating the expression of several genes, among which those involved in flavonoid biosynthesis...
May 17, 2017: Planta
https://www.readbyqxmd.com/read/28512461/transcriptional-responses-to-pre-flowering-leaf-defoliation-in-grapevine-berry-from-different-growing-sites-years-and-genotypes
#5
Sara Zenoni, Silvia Dal Santo, Giovanni B Tornielli, Erica D'Incà, Ilaria Filippetti, Chiara Pastore, Gianluca Allegro, Oriana Silvestroni, Vania Lanari, Antonino Pisciotta, Rosario Di Lorenzo, Alberto Palliotti, Sergio Tombesi, Matteo Gatti, Stefano Poni
Leaf removal is a grapevine canopy management technique widely used to modify the source-sink balance and/or microclimate around berry clusters to optimize fruit composition. In general, the removal of basal leaves before flowering reduces fruit set, hence achieving looser clusters, and improves grape composition since yield is generally curtailed more than proportionally to leaf area itself. Albeit responses to this practice seem quite consistent, overall vine performance is affected by genotype, environmental conditions, and severity of treatment...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28510189/multiple-regulatory-roles-of-ap2-erf-transcription-factor-in-angiosperm
#6
REVIEW
Chao Gu, Zhi-Hua Guo, Ping-Ping Hao, Guo-Ming Wang, Zi-Ming Jin, Shao-Ling Zhang
APETALA2/ethylene response factor (AP2/ERF) transcription factor (TF) is a superfamily in plant kingdom, which has been reported to be involved in regulation of plant growth and development, fruit ripening, defense response, and metabolism. As the final response gene in ethylene signaling pathway, AP2/ERF TF could feedback modulate phytohormone biosynthesis, including ethylene, cytokinin, gibberellin, and abscisic acid. Moreover, AP2/ERF TF also participates in response to the signals of auxin, cytokinin, abscisic acid, and jasmonate...
December 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28507144/critical-roles-of-dna-demethylation-in-the-activation-of-ripening-induced-genes-and-inhibition-of-ripening-repressed-genes-in-tomato-fruit
#7
Zhaobo Lang, Yihai Wang, Kai Tang, Dengguo Tang, Tatsiana Datsenka, Jingfei Cheng, Yijing Zhang, Avtar K Handa, Jian-Kang Zhu
DNA methylation is a conserved epigenetic mark important for genome integrity, development, and environmental responses in plants and mammals. Active DNA demethylation in plants is initiated by a family of 5-mC DNA glycosylases/lyases (i.e., DNA demethylases). Recent reports suggested a role of active DNA demethylation in fruit ripening in tomato. In this study, we generated loss-of-function mutant alleles of a tomato gene, SlDML2, which is a close homolog of the Arabidopsis DNA demethylase gene ROS1 In the fruits of the tomato mutants, increased DNA methylation was found in thousands of genes...
May 15, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28505092/molecular-characterization-and-expression-profiling-of-tomato-grf-transcription-factor-family-genes-in-response-to-abiotic-stresses-and-phytohormones
#8
Khadiza Khatun, Arif Hasan Khan Robin, Jong-In Park, Ujjal Kumar Nath, Chang Kil Kim, Ki-Byung Lim, Ill Sup Nou, Mi-Young Chung
Growth regulating factors (GRFs) are plant-specific transcription factors that are involved in diverse biological and physiological processes, such as growth, development and stress and hormone responses. However, the roles of GRFs in vegetative and reproductive growth, development and stress responses in tomato (Solanum lycopersicum) have not been extensively explored. In this study, we characterized the 13 SlGRF genes. In silico analysis of protein motif organization, intron-exon distribution, and phylogenetic classification confirmed the presence of GRF proteins in tomato...
May 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28500777/a-comprehensive-investigation-of-starch-degradation-process-and-identification-of-a-transcriptional-activator-mabhlh6-during-banana-fruit-ripening
#9
Yun-Yi Xiao, Jian-Fei Kuang, Xin-Na Qi, Yu-Jie Ye, Zhen-Xian Wu, Jian-Ye Chen, Wang-Jin Lu
Although starch degradation has been well studied in model systems such as Arabidopsis leaves and cereal seeds, this process in starchy fruits during ripening, especially in bananas, is largely unknown. In this study, 38 genes encoding starch degradation-related proteins were identified and characterized from banana fruit. Expression analysis revealed that 27 candidate genes were significantly induced during banana fruit ripening, with concomitant conversion of starch-to-sugars. Furthermore, iTRAQ-based proteomics experiments identified 18 starch degradation-associated enzymes bound to the surface of starch granules, of which 10 were markedly up-regulated during ripening...
May 13, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28496449/differences-in-flower-transcriptome-between-grapevine-clones-are-related-to-their-cluster-compactness-fruitfulness-and-berry-size
#10
Jérôme Grimplet, Javier Tello, Natalia Laguna, Javier Ibáñez
Grapevine cluster compactness has a clear impact on fruit quality and health status, as clusters with greater compactness are more susceptible to pests and diseases and ripen more asynchronously. Different parameters related to inflorescence and cluster architecture (length, width, branching, etc.), fruitfulness (number of berries, number of seeds) and berry size (length, width) contribute to the final level of compactness. From a collection of 501 clones of cultivar Garnacha Tinta, two compact and two loose clones with stable differences for cluster compactness-related traits were selected and phenotyped...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28494091/fermentation-characteristics-and-aromatic-profile-of-plum-wines-produced-with-indigenous-microbiota-and-pure-cultures-of-selected-yeast
#11
Uroš Miljić, Vladimir Puškaš, Vesna Vučurović, Ana Muzalevski
The aim of this study was to assess and compare fermentation characteristics and aromatic profile of plum wines produced with indigenous microbiota and pure cultures of different selected yeast. Experiments were carried out with plum (Prunus domestica L.) varieties of different fruit ripening times (Čačanska rana, Čačanska lepotica, and Požegača). Wine fermentations were conducted by the activity of indigenous microbiota, commercially available Saccharomyces cerevisiae and Saccharomyces bayanus yeast strains and joint activity of Schizosaccharomyces pombe and S...
May 11, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28493311/ethqv6-3-is-involved-in-melon-climacteric-fruit-ripening-and-is-encoded-by-a-nac-domain-transcription-factor
#12
Pablo Ríos, Jason Argyris, Juan Vegas, Carmen Leida, Merav Kenigswald, Galil Tzuri, Christelle Troadec, Abdelhafid Bendahmane, Nurit Katzir, Belén Picó, Antonio J Monforte, Jordi Garcia-Mas
Fruit ripening is divided into climacteric and non-climacteric types depending on the presence or absence of a transient rise in respiration rate and the production of autocatalytic ethylene. Melon is ideal for the study of fruit ripening, as both climacteric and non-climacteric varieties exist. Two introgressions of the non-climacteric accession PI 161375, encompassed in the QTLs ETHQB3.5 and ETHQV6.3, into the non-climacteric "Piel de Sapo" background are able to induce climacteric ripening independently...
May 10, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28491071/exploring-blueberry-aroma-complexity-by-chromatographic-and-direct-injection-spectrometric-techniques
#13
Brian Farneti, Iuliia Khomenko, Marcella Grisenti, Matteo Ajelli, Emanuela Betta, Alberto Alarcon Algarra, Luca Cappellin, Eugenio Aprea, Flavia Gasperi, Franco Biasioli, Lara Giongo
Blueberry (Vaccinium spp.) fruit consumption has increased over the last 5 years, becoming the second most important soft fruit species after strawberry. Despite the possible economic and sensory impact, the blueberry volatile organic compound (VOC) composition has been poorly investigated. Thus, the great impact of the aroma on fruit marketability stimulates the need to step forward in the understanding of this quality trait. Beside the strong effect of ripening, blueberry aroma profile also varies due to the broad genetic differences among Vaccinium species that have been differently introgressed in modern commercial cultivars through breeding activity...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28490085/cellulose-nanomaterials-emulsion-coatings-for-controlling-physiological-activity-modifying-surface-morphology-and-enhancing-storability-of-postharvest-bananas-musa-acuminate
#14
Zilong Deng, Jooyeoun Jung, John Simonsen, Yanyun Zhao
Cellulose nanomaterials (CNs)-incorporated emulsion coatings with improved moisture barrier, wettability and surface adhesion onto fruit surfaces were developed for controlling postharvest physiological activity and enhancing storability of bananas during ambient storage. Cellulose nanofiber (CNF)-based emulsion coating (CNFC: 0.3% CNF/1% oleic acid/1% sucrose ester fatty acid (w/w wet base)) had low contact angle, high spread coefficient onto banana surfaces, and lower surface tension (ST, 25.4mN/m) than the critical ST (35...
October 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28487710/transcriptome-analysis-of-cell-wall-and-nac-domain-transcription-factor-genes-during-elaeis-guineensis-fruit-ripening-evidence-for-widespread-conservation-within-monocot-and-eudicot-lineages
#15
Timothy J Tranbarger, Kim Fooyontphanich, Peerapat Roongsattham, Maxime Pizot, Myriam Collin, Chatchawan Jantasuriyarat, Potjamarn Suraninpong, Somvong Tragoonrung, Stéphane Dussert, Jean-Luc Verdeil, Fabienne Morcillo
The oil palm (Elaeis guineensis), a monocotyledonous species in the family Arecaceae, has an extraordinarily oil rich fleshy mesocarp, and presents an original model to examine the ripening processes and regulation in this particular monocot fruit. Histochemical analysis and cell parameter measurements revealed cell wall and middle lamella expansion and degradation during ripening and in response to ethylene. Cell wall related transcript profiles suggest a transition from synthesis to degradation is under transcriptional control during ripening, in particular a switch from cellulose, hemicellulose, and pectin synthesis to hydrolysis and degradation...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28486974/cell-separation-in-kiwifruit-without-development-of-a-specialised-detachment-zone
#16
Roneel Prakash, Ian C Hallett, Sally F Wong, Sarah L Johnston, Erin M O'Donoghue, Peter A McAtee, Alan G Seal, Ross G Atkinson, Roswitha Schröder
BACKGROUND: Unlike in abscission or dehiscence, fruit of kiwifruit Actinidia eriantha develop the ability for peel detachment when they are ripe and soft in the absence of a morphologically identifiable abscission zone. Two closely-related genotypes with contrasting detachment behaviour have been identified. The 'good-peeling' genotype has detachment with clean debonding of cells, and a peel tissue that does not tear. The 'poor-peeling' genotype has poor detachability, with cells that rupture upon debonding, and peel tissue that fragments easily...
May 10, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28482127/suppressing-aba-uridine-diphosphate-glucosyltransferase-slugt75c1-alters-fruit-ripening-and-the-stress-response-in-tomato
#17
Yufei Sun, Kai Ji, Bin Liang, Yangwei Du, Li Jiang, Juan Wang, Wenbin Kai, Yushu Zhang, Xiawan Zhai, Pei Chen, Hongqing Wang, Ping Leng
Abscisic acid (ABA) glucose conjugation mediated by uridine diphosphate glucosyltransferases (UGTs) is an important pathway in regulating ABA homeostasis. In the present study, we investigated three tomato SlUGTs that are highly expressed in fruit during ripening, and these SlUGTs were localized to the cytoplasm and cell nucleus. Among these three UGTs, SlUGT75C1 catalyzes the glucosylation of both ABA and IAA in vitro; SlUGT76E1 can only catalyze the conjugation of ABA; and SlUGT73C4 cannot glycosylate either ABA or IAA...
May 8, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28476147/genome-wide-analysis-and-characterization-of-aux-iaa-family-genes-related-to-fruit-ripening-in-papaya-carica-papaya-l
#18
Kaidong Liu, Changchun Yuan, Shaoxian Feng, Shuting Zhong, Haili Li, Jundi Zhong, Chenjia Shen, Jinxiang Liu
BACKGROUND: Auxin/indole-3-acetic acid (Aux/IAA) family genes encode short-lived nuclear proteins that mediate the responses of auxin-related genes and are involved in several plant developmental and growth processes. However, how Aux/IAA genes function in the fruit development and ripening of papaya (Carica papaya L.) is largely unknown. RESULTS: In this study, a comprehensive identification and a distinctive expression analysis of 18 C. papaya Aux/IAA (CpIAA) genes were performed using newly updated papaya reference genome data...
May 5, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28473836/quantitative-genetic-analysis-reveals-potential-to-genetically-improve-fruit-yield-and-drought-resistance-simultaneously-in-coriander
#19
Mostafa Khodadadi, Hamid Dehghani, Mokhtar Jalali Javaran
Enhancing water use efficiency of coriander (Coriandrum sativum L.) is a major focus for coriander breeding to cope with drought stress. The purpose of this study was; (a) to identify the predominant mechanism(s) of drought resistance in coriander and (b) to evaluate the genetic control mechanism(s) of traits associated with drought resistance and higher fruit yield. To reach this purpose, 15 half-diallel hybrids of coriander and their six parents were evaluated under well-watered and water deficit stressed (WDS) in both glasshouse lysimetric and field conditions...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28467391/ontogenetic-variation-of-individual-and-total-capsaicinoids-in-malagueta-peppers-capsicum-frutescens-during-fruit-maturation
#20
Oreto Fayos, Ana Carolina de Aguiar, Ana Jiménez-Cantizano, Marta Ferreiro-González, Ana Garcés-Claver, Julián Martínez, Cristina Mallor, Ana Ruiz-Rodríguez, Miguel Palma, Carmelo G Barroso, Gerardo F Barbero
The ontogenetic variation of total and individual capsaicinoids (nordihydrocapsaicin (n-DHC), capsaicin (C), dihydrocapsaicin (DHC), homocapsaicin (h-C) and homodihydrocapsaicin (h-DHC)) present in Malagueta pepper (Capsicum frutescens) during fruit ripening has been studied. Malagueta peppers were grown in a greenhouse under controlled temperature and humidity conditions. Capsaicinoids were extracted using ultrasound-assisted extraction (UAE) and the extracts were analyzed by ultra-performance liquid chromatography (UHPLC) with fluorescence detection...
May 3, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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