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https://www.readbyqxmd.com/read/29241567/pectic-enzymes-as-potential-enhancers-of-ascorbic-acid-production-through-the-d-galacturonate-pathway-in-solanaceae
#1
Maria Manuela Rigano, Vincenzo Lionetti, Assunta Raiola, Daniela Bellincampi, Amalia Barone
The increase of L-Ascorbic Acid (AsA) content in tomato (Solanum lycopersicum) is a common goal in breeding programs due to its beneficial effect on human health. To shed light into the regulation of fruit AsA content, we exploited a Solanum pennellii introgression line (IL12-4-SL) harbouring one quantitative trait locus that increases the content of total AsA in the fruit. Biochemical and transcriptomic analyses were carried out in fruits of IL12-4-SL in comparison with the cultivated line M82 at different stages of ripening...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29240233/blue-honeysuckle-lonicera-caerulea-subsp-edulis-turcz-ex-herder-hult%C3%A3-n-berries-and-changes-in-their-ingredients-across-different-locations
#2
Mateja Senica, Martina Bavec, Franci Stampar, Maja Mikulic-Petkovsek
BACKGROUND: Interest in organic blue honeysuckle berries has increased in recent years. They are rich in various health promoting compounds, which are sensitive to different environmental factors and are modified during the growing season. RESULTS: Honeysuckle berries from different locations significantly differed in contents of primary and secondary metabolites. The location Ogulin, with the highest altitude and, consequently, high UV-radiation, had the highest phenolics content (259...
December 14, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29238032/influence-of-fruit-ripening-on-color-organic-acid-contents-capsaicinoids-aroma-compounds-and-antioxidant-capacity-of-shimatogarashi-capsicum-frutescens
#3
Manikharda Manikharda, Makoto Takahashi, Mika Arakaki, Kaoru Yonamine, Fumio Hashimoto, Kensaku Takara, Koji Wada
Shimatogarashi (Capsicum frutescens) is a typical chili pepper domesticated in southern Japan. Important traits of Shimatogarashi peppers, such as color; proportion of organic acids, capsaicinoids, and aromatic compounds; and antioxidant activity in three stages of maturity (green (immature), orange (turning), and red (mature) stages) were characterized. The results indicated that the concentration of organic acids, including ascorbic, citric, and malic acid, increased during ripening. In addition, the amount of capsaicinoids, which are responsible for the pungent taste of chili peppers, increased as the fruit matured to the orange and red stages...
December 14, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/29230820/tree-age-affects-physico-chemical-functional-quality-and-storability-of-amrapali-mango-mangifera-indica-l-fruits
#4
Nirmal Kumar Meena, Ram Asrey
BACKGROUND: The effect of tree age on physicochemical quality attributes and storage behaviour of stored Amrapali mango fruit was evaluated. Physiologically mature fruits were harvested from 6, 18 and 30 years old trees and kept for ripening under ambient condition (temperature 35 ± 3 °C, relative humidity 60 ± 5 %). Observations were recorded at three days interval. RESULTS: Highest total soluble solids and total sugars were found in the fruit sourced from 18 years old trees...
December 12, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29223880/tomato-plants-use-non-enzymatic-antioxidant-pathways-to-cope-with-moderate-uv-a-b-irradiation-a-contribution-to-the-use-of-uv-a-b-in-horticulture
#5
N Mariz-Ponte, R J Mendes, S Sario, J M P Ferreira de Oliveira, P Melo, C Santos
Plants developed receptors for solar UV-A/B radiation, which regulate a complex network of functions through the plant's life cycle. However, greenhouse grown crops, like tomato, are exposed to strongly reduced UV radiation, contrarily to their open-field counterparts. A new paradigm of modern horticulture is to supplement adequate levels of UV to greenhouse cultures, inducing a positive mild stress necessary to stimulate oxidative stress pathways and antioxidant mechanisms. Protected cultures of Solanum (cv MicroTom) were supplemented with moderate UV-A (1h and 4h) and UV-B (1min and 5min) doses during the flowering/fruiting period...
December 6, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29223340/silencing-of-histone-deacetylase-slhdt3-delays-fruit-ripening-and-suppresses-carotenoid-accumulation-in-tomato
#6
Jun-E Guo, Zongli Hu, Fenfen Li, Lincheng Zhang, Xiaohui Yu, Boyan Tang, Guoping Chen
The acetylation levels of histones on lysine residues are regulated by histone acetyltransferases and histone deacetylases, which play an important but understudied role in the control of gene expression in plants. There is an increasing research focus on histone deacetylation in crops, but to date, there is little information regarding tomato. With the aim of characterizing the tomato HD2 family of histone deacetylases, an RNA interference (RNAi) expression vector of SlHDT3 was constructed and transformed into tomato plants...
December 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29222720/reproductive-ecology-of-a-parasitic-plant-differs-by-host-species-vector-interactions-and-the-maintenance-of-host-races
#7
Kelsey M Yule, Judith L Bronstein
Parasitic plants often attack multiple host species with unique defenses, physiology, and ecology. Reproductive phenology and vectors of parasitic plant genes (pollinators and dispersers) can contribute to or erode reproductive isolation of populations infecting different host species. We asked whether desert mistletoe, Phoradendron californicum (Santalaceae tribe Visceae syn. Viscaceae), differs ecologically across its dominant leguminous hosts in ways affecting reproductive isolation. Parasite flowering phenology on one host species (velvet mesquite, Prosopis velutina) differed significantly from that on four others, and phenology was not predicted by host species phenology or host individual...
December 8, 2017: Oecologia
https://www.readbyqxmd.com/read/29216378/melonet-db-a-grand-rna-seq-gene-expression-atlas-in-melon-cucumis-melo-l
#8
Ryoichi Yano, Satoko Nonaka, Hiroshi Ezura
Melon (Cucumis melo L.) is an important Cucurbitaceae crop produced world-wide, exhibiting wide genetic variations and comprising both climacteric and non-climacteric fruit types. The muskmelon cultivar "Earl's favorite Harukei-3 (Harukei-3)" known for its sweetness and rich aroma is used for breeding of high-grade muskmelon in Japan. We conducted RNA-seq transcriptome studies in 30 different tissues of the 'Harukei-3' melon. These included root, stems, leaves, flowers, regenerating callus, and ovaries, in addition to the flesh and peel sampled at 7 stages of fruit development...
December 4, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/29215944/feronia-fer-like-receptor-kinases-integrate-and-modulate-multiple-signaling-pathways-in-fruit-development-and-ripening
#9
Bingbing Li, Jiaqi Yan, Wensuo Jia
Ripening of fleshy fruits is a complex process that involves dramatic changes in color, texture, flavor, and aroma, which is essentially regulated by multiple hormone signals. Although the metabolic mechanisms for the regulation of fruit development and ripening have been studied extensively, little is known about the signaling mechanisms underlying this process. FERONIA has been increasingly suggested to be implicated in multiple signaling pathways. In a recent publication, we showed that a FERONIA/FER -like receptor kinase, FaMRLK47, playes an important role in the regulation of fruit ripening in strawberry (Fragaria × ananassa, a typical non-climacteric fruit) fruit...
December 7, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/29210466/influence-of-deficit-irrigation-and-crop-load-on-the-yield-and-fruit-quality-in-wonderful-and-mollar-de-elche-pomegranates
#10
M Cano-Lamadrid, A Galindo, J Collado-González, P Rodríguez, Z N Cruz, P Legua, F Burló, D Morales, A A Carbonell-Barrachina, F Hernández
BACKGROUND: The working hypothesis of this experiment was that by proper simultaneous control of irrigation (hydroSOStainable products) and crop load (thinning) is possible to promote bioactive compounds accumulation and improve fruit appearance (size and weight). The effects of (i) irrigation status [T0: 120% ETc (estimated crop evapotranspiration); T1: 60% ETc during fruit growth and ripening] and (ii) crop load (A0: no thinning; A1: thinning) on yield and fruit quality were evaluated in two pomegranate cultivars (Wonderful, Wond, and Mollar de Elche, ME)...
December 6, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29202199/drosophila-suzukii-diptera-drosophilidae-contributes-to-the-development-of-sour-rot-in-grape
#11
Claudio Ioriatti, Raffaele Guzzon, Gianfranco Anfora, Franca Ghidoni, Valerio Mazzoni, Tomas Roman Villegas, Daniel T Dalton, Vaughn M Walton
This research aimed to more clearly describe the interactions of Drosophila suzukii (Matsumura; Diptera: Drosophilidae) with microorganisms that may contribute to spoilage or quality loss of wine grapes during harvest. Experiments were conducted in controlled laboratory experiments and under field conditions to determine these effects. Laboratory trials determined the role of insect contact and oviposition to vector spoilage bacteria onto wine grapes. In the field, the roles of key organoleptic parameters in grape fruit ripening were assessed to determine their relative contribution to oviposition potential as fruit ripened...
November 30, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29194640/the-microvine-a-plant-model-to-study-the-effect-of-vine-shoot-extract-on-the-accumulation-of-glycosylated-aroma-precursors-in-grapes
#12
Rosario Sánchez-Gómez, Laurent Torregrosa, Amaya Zalacain, Hernán Ojeda, Virginie Bouckenooghe, Rémi Schneider, Gonzalo L Alonso, M Rosario Salinas
BACKGROUND: Microvine plant model displays an unique reproductive organ behaviors and is suitable for grapevine fruit physiological studies: allow to undertake studies until 5 times more rapidly than the current situation with grapevines. Recently, vine-shoot aqueous extracts, which have an interesting phenolic and aroma composition, have been proposed as viticultural biostimulants, since their post-veraison foliar application to grapevines impacts on wine aroma profile. Using Microvines, the aim of this study was to determine the vine-shoot extract foliar application effect on twenty-one stages of grapes development...
November 30, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29192231/regulation-of-ethylene-responsive-slwrkys-involved-in-color-change-during-tomato-fruit-ripening
#13
Ling Wang, Xue-Lian Zhang, Lu Wang, Yanan Tian, Ning Jia, Shuzhen Chen, Ning-Bo Shi, Xuemei Huang, Chu Zhou, Yaowen Yu, Zhao-Qi Zhang, Xue-Qun Pang
WRKY transcription factors (TFs) play important roles in stress responses in planta. However, the function of WRKY TFs in the regulation of fruit ripening is unclear. Here, 23 tomato SlWRKYs that are similar to ethylene-responsive WRKY genes from other plant species, or show up-regulation during fruit ripening in previous genome-wide study, were selected, and their function in fruit ripening was investigated. Twelve SlWRKYs were found to be responsive to ethylene (SlER-WRKYs), showing expression patterns similar to those of genes related to fruit ripening...
November 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29186495/sugar-metabolism-reprogramming-in-a-non-climacteric-bud-mutant-of-a-climacteric-plum-fruit-during-development-on-the-tree
#14
Macarena Farcuh, Bosheng Li, Rosa M Rivero, Lyudmila Shlizerman, Avi Sadka, Eduardo Blumwald
We investigated sugar metabolism in leaves and fruits of two Japanese plum (Prunus salicina Lindl.) cultivars, the climacteric Santa Rosa and its bud sport mutant the non-climacteric Sweet Miriam, during development on the tree. We previously characterized differences between the two cultivars. Here, we identified key sugar metabolic pathways. Pearson coefficient correlations of metabolomics and transcriptomic data and weighted gene co-expression network analysis (WGCNA) of RNA sequencing (RNA-Seq) data allowed the identification of 11 key sugar metabolism-associated genes: sucrose synthase, sucrose phosphate synthase, cytosolic invertase, vacuolar invertase, invertase inhibitor, α-galactosidase, β-galactosidase, galactokinase, trehalase, galactinol synthase, and raffinose synthase...
November 25, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29185464/ripening-induced-chemical-modifications-of-papaya-pectin-inhibit-cancer-cell-proliferation
#15
Samira Bernardino Ramos do Prado, Gabrielle Fernandez Ferreira, Yosuke Harazono, Tânia Misuzu Shiga, Avraham Raz, Nicholas C Carpita, João Paulo Fabi
Papaya (Carica papaya L.) is a fleshy fruit with a rapid pulp softening during ripening. Ripening events are accompanied by gradual depolymerization of pectic polysaccharides, including homogalacturonans, rhamnogalacturonans, arabinogalactans, and their modified forms. During intermediate phases of papaya ripening, partial depolymerization of pectin to small size with decreased branching had enhanced pectin anti-cancer properties. These properties were lost with continued decomposition at later phases of ripening...
November 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29184231/transitions-in-mesocarp-colour-of-mango-fruits-kept-under-variable-temperatures
#16
P P S Gill, S K Jawandha, Navdeep Kaur
The impact of variable temperatures on mesocarp colour development and physico-chemical changes of mango fruits cv. Langra during ripening has been investigated. Physiological mature mango fruits were kept in temperature regulated chambers (20 and 25 °C) and at room temperature (29.8-33.6 °C). Progress in development of mesocarp colour, β-carotene, sensory quality (SQ) and total soluble solids (TSS) content of fruits were analysed periodically from 48 to 168 h of ripening period. The progress of ripening period was accompanied by an overall increase in colorimetric value redness (a*), yellowness (b*), chroma or saturation (C*), a reduction in lightness (L*) and hue angle (h0) values...
December 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29184219/quality-and-biochemical-changes-of-hindi-besennara-mangoes-during-shelf-life-as-affected-by-chitosan-gallic-acid-and-chitosan-gallate
#17
Mohamed A Awad, Adel D Al-Qurashi, Saleh A Mohamed, Reda M El-Shishtawy
Quality and biochemical changes of 'Hindi-Besennara' mangoes in response to chitosan, gallic acid (GA) and chitosan gallate (CG) postharvest dipping were studied during 2 weeks of storage at 20 ± 2 °C and 60-70% RH. Both GA and CG lowered decay and weight loss during storage. Chitosan and GA at high level and CG at both level maintained higher membrane stability index of peel than control. Fruits treated only CG and GA at high level and chitosan at both levels retained higher acidity and vitamin C but lower pH and total soluble solids (TSS) than control...
December 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29178145/comparative-epigenomics-reveals-evolution-of-duplicated-genes-in-potato-and-tomato
#18
Lin Wang, Jiahui Xie, Jiantuan Hu, Binyuan Lan, Chenjiang You, Fenglan Li, Zhengjia Wang, Haifeng Wang
The evolution of duplicated genes after polyploidization has been the subject of many evolutionary biology studies. Potato (Solanum tuberosum) and tomato (Solanum lycopersicum) are the first two sequenced genomes of asterids, and share a common polyploidization event. However, the epigenetic role of DNA methylation on the evolution of duplicated genes derived from polyploidization is not fully understood. Here, we explore the role of the DNA methylation in the evolution of duplicated genes in potato and tomato...
November 27, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29166959/short-distance-dispersal-of-hypothenemus-hampei-ferrari-females-coleoptera-curculionidae-scolytidae-during-the-coffee-tree-fruiting-period
#19
A K Román-Ruiz, F Ribeyre, J C Rojas, L Cruz-López, J F Barrera, B P Dufour
The coffee berry borer (CBB), Hypothenemus hampei (Ferrari), is a multivoltine species closely associated with coffee crops worldwide, causing severe damage to the bean. In Mexico, as in all tropical regions, CBB survives during the inter-harvest period in residual berries on the ground or in dry berries remaining on the branches, and then disperses in search of the first suitable berries. In this study, we investigated how CBB dispersed from the first infested nodes during the fruiting period of Coffea canephora Pierre, which provides a favourable trophic level for this insect...
November 23, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29163624/phytohormone-and-light-regulation-of-chlorophyll-degradation
#20
REVIEW
Xiaoyu Zhu, Junyi Chen, Kai Qiu, Benke Kuai
Degreening, due to the net loss of chlorophyll (Chl), is the most prominent symptom during the processes of leaf senescence, fruit ripening, and seed maturation. Over the last decade or so, extensive identifications of Chl catabolic genes (CCGs) have led to the revelation of the biochemical pathway of Chl degradation. As such, exploration of the regulatory mechanism of the degreening process is greatly facilitated. During the past few years, substantial progress has been made in elucidating the regulation of Chl degradation, particularly via the mediation of major phytohormones' signaling...
2017: Frontiers in Plant Science
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