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Fruit ripening

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https://www.readbyqxmd.com/read/28106715/seasonal-effects-on-the-population-morphology-and-reproductive-behavior-of-narnia-femorata-hemiptera-coreidae
#1
Lauren A Cirino, Christine W Miller
Many insects are influenced by the phenology of their host plants. In North Central Florida, Narnia femorata (Hemiptera: Coreidae) spends its entire life cycle living and feeding on Opuntia mesacantha ssp. lata. This cactus begins producing flower buds in April that lead to unripe green fruit in June that ripen into red fruit through December. Many morphological and behavioral characteristics of N. femorata are known to be affected by cactus phenology in a controlled laboratory setting, including the degree of sexual dimorphism and mating behavior...
January 17, 2017: Insects
https://www.readbyqxmd.com/read/28106252/investigation-into-the-role-of-endogenous-abscisic-acid-during-ripening-of-imported-avocado-cv-hass
#2
Marjolaine D Meyer, Gemma A Chope, Leon A Terry
BACKGROUND: The importance of ethylene in avocado ripening has been extensively studied. In contrast, little is known about the possible role of abscisic acid (ABA). The present work studied the effect of 1-MCP (0.3 μL L(-1) ), e + (®) Ethylene Remover and the combination thereof on the quality of imported avocado cv. Hass fruit stored for 7 days at 12 °C. Ethylene production, respiration, firmness, colour, heptose (C7) sugars and ABA concentrations in mesocarp tissue were measured throughout storage...
January 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28106249/targeted-forcing-improves-quality-nutritional-and-health-value-of-sweet-cherry-fruit
#3
Verena Overbeck, Michaela Schmitz, Michael Blanke
BACKGROUND: Trade and consumers alike require premium quality cherries with high nutritional and health values preferably of local origin. While early fruit imports cannot supply such fruit, a new technology of forcing cherry emerged for an early local supply by covering the crop in spring. In the apparent scarcity of data on the resulting fruit quality, fruit characteristics of forced cherries were compared with those without cover RESULTS: Size and weight of forced cherry fruit were successfully increased by 6-14%...
January 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28099767/a-comparative-study-of-phenolic-antioxidant-activity-and-flavonoid-biosynthesis-related-gene-expression-between-summer-and-winter-strawberry-cultivars
#4
Doori Park, Yeri Park, Young Hun Lee, Ik-Young Choi, Kyong Cheul Park, Sang Un Park, Byung Sup Kim, Young Rog Yeoung, Nam Il Park
Strawberry (Fragaria ananassa Duch.) possesses good antioxidant properties. Phenolic compounds in strawberries, such as anthocyanins and ellagic acid, mainly act as antioxidants. This study aimed to compare the phenolic content and expression patterns of genes involved in flavonoid biosynthesis between summer and winter strawberry cultivars affected by seasonal variation, degree of ripeness, and genotype. Antioxidant activity and the total content of phenols and flavonoids decreased with fruit ripening. Most notably, summer strawberry cultivars showed higher antioxidant activity than winter cultivars...
January 18, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28096780/molecular-breeding-of-a-novel-orange-brown-tomato-fruit-with-enhanced-beta-carotene-and-chlorophyll-accumulation
#5
Ranjith Kumar Manoharan, Hee-Jeong Jung, Indeok Hwang, Namhee Jeong, Kang Hee Kho, Mi-Young Chung, Ill-Sup Nou
BACKGROUND: Tomatoes provide a significant dietary source of the carotenoids, lycopene and β-carotene. During ripening, carotenoid accumulation determines the fruit colors while chlorophyll degradation. These traits have been, and continue to be, a significant focus for plant breeding efforts. Previous work has found strong evidence for a relationship between CYC-B gene expression and the orange color of fleshy fruit. Other work has identified a point mutation in SGR that impedes chlorophyll degradation and causes brown flesh color to be retained in some tomato varieties...
2017: Hereditas
https://www.readbyqxmd.com/read/28088087/ethylene-biosynthesis-and-perception-during-ripening-of-loquat-fruit-eriobotrya-japonica-lindl
#6
E Alos, A Martinez-Fuentes, C Reig, C Mesejo, M J Rodrigo, M Agustí, L Zacarías
In order to gain insights into the controversial ripening behavior of loquat fruits, in the present study we have analyzed the expression of three genes related to ethylene biosynthesis (ACS1, ACO1 and ACO2), two ethylene receptors (ERS1a and ERS1b), one signal transduction component (CTR1) and one transcription factor (EIL1) in peel and pulp of loquat fruit during natural ripening and also in fruits treated with ethylene (10μLL(-1)) and 1-MCP (10μLL(-1)), an ethylene action inhibitor. In fruits attached to or detached from the tree, a slight increase in ethylene production was detected at the yellow stage, but the respiration rate declined progressively during ripening...
December 19, 2016: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28081283/transcriptome-analysis-of-peach-prunus-persica-l-batsch-during-the-late-stage-of-fruit-ripening
#7
H F Pan, Y Sheng, Z H Gao, H L Chen, Y J Qi, X K Yi, G H Qin, J Y Zhang
Fruit ripening is a complex developmental process, the details of which remain largely unknown in fleshy fruits. In this paper, the fruit flesh of two peach varieties, "Zhongyou9" (a nectarine; Prunus persica L. Batsch) and its mutant "Hongyu", was analyzed by RNA-seq technology during two stages of ripening at 20-day intervals. One hundred and eighty significant upregulated and two hundred and thirty-five downregulated genes were identified in the experiment. Many of these genes were related to plant hormones, chlorophyll breakdown, accumulation of aroma and flavor volatiles, and stress...
December 23, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28049426/comparative-transcriptome-analysis-of-two-contrasting-watermelon-genotypes-during-fruit-development-and-ripening
#8
Qianglong Zhu, Peng Gao, Shi Liu, Zicheng Zhu, Sikandar Amanullah, Angela R Davis, Feishi Luan
BACKGROUND: Watermelon [Citrullus lanatus (Thunb.) Matsum. & Nakai] is an economically important crop with an attractive ripe fruit that has colorful flesh. Fruit ripening is a complex, genetically programmed process. RESULTS: In this study, a comparative transcriptome analysis was performed to identify the regulators and pathways that are involved in the fruit ripening of pale-yellow-flesh cultivated watermelon (COS) and red-flesh cultivated watermelon (LSW177)...
January 3, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28044313/the-transcriptional-regulatory-network-mediated-by-banana-musa-acuminata-dehydration-responsive-element-binding-madreb-transcription-factors-in-fruit-ripening
#9
Jian-Fei Kuang, Jian-Ye Chen, Xun-Cheng Liu, Yan-Chao Han, Yun-Yi Xiao, Wei Shan, Yang Tang, Ke-Qiang Wu, Jun-Xian He, Wang-Jin Lu
Fruit ripening is a complex, genetically programmed process involving the action of critical transcription factors (TFs). Despite the established significance of dehydration-responsive element binding (DREB) TFs in plant abiotic stress responses, the involvement of DREBs in fruit ripening is yet to be determined. Here, we identified four genes encoding ripening-regulated DREB TFs in banana (Musa acuminata), MaDREB1, MaDREB2, MaDREB3, and MaDREB4, and demonstrated that they play regulatory roles in fruit ripening...
January 3, 2017: New Phytologist
https://www.readbyqxmd.com/read/28040679/morphological-observation-rna-seq-quantification-and-expression-profiling-novel-insight-into-grafting-responsive-carotenoid-biosynthesis-in-watermelon-grafted-onto-pumpkin-rootstock
#10
Guang Liu, Xingping Yang, Jinhua Xu, Man Zhang, Qian Hou, Lingli Zhu, Ying Huang, Aisheng Xiong
Watermelon is an important and economical horticultural crop in China, where ~20% of the plants are grafted. The development of grafted watermelon fruit involves a diverse range of gene interactions that results in dynamic changes in fruit. However, the molecular mechanisms underlying grafting-induced fruit quality change are unclear. In the present study, we measured the lycopene content by high-performance liquid chromatography and used RNA-Seq (quantification) to perform a genome-wide transcript analysis of fruits from watermelon grafted onto pumpkin rootstock (pumpkin-grafted watermelon, PGW), self-grafted watermelon (SGW), and non-grafted watermelon (NGW)...
December 30, 2016: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28039071/function-of-s-nitrosoglutathione-reductase-gsnor-during-pepper-capsicum-annuum-l-fruit-ripening
#11
Marta Rodríguez-Ruiz, Paulo Mioto, José M Palma, Francisco J Corpas
Pepper (Capsicum annuum L.) is an annual plant species whose fruits undergo important metabolic changes through development and ripening. These changes include emission of volatile organic compounds associated with respiration, destruction of chlorophylls and synthesis of new pigments (red/yellow carotenoids plus xanthophylls and anthocyans) responsible for the color shift, protein degradation/synthesis, and changes in total soluble reducing equivalents. Previous data have shown that during the ripening of pepper fruit there was also an enhancement of protein tyrosine nitration...
December 27, 2016: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28031469/effects-of-low-oxygen-environments-on-the-radiation-tolerance-of-the-cabbage-looper-moth-lepidoptera-noctuidae
#12
Catriona H Condon, Sabrina White, Robert L Meagher, Laura A Jeffers, Woodward D Bailey, Daniel A Hahn
Ionizing radiation is used as a phytosanitary treatment to mitigate risks from invasive species associated with trade of fresh fruits and vegetables. Commodity producers prefer to irradiate fresh product stored in modified atmosphere packaging that increases shelf life and delays ripening. However, irradiating insects in low oxygen may increase radiation tolerance, and regulatory agencies are concerned modified atmosphere packaging will decrease efficacy of radiation doses. Here, we examined how irradiation in a series of oxygen conditions (0...
December 28, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28029236/ethylene-detection-based-on-organic-field-effect-transistors-with-porogen-and-palladium-particle-receptor-enhancements
#13
Kalpana Besar, Jennifer Dailey, Howard E Katz
Ethylene sensing is a highly challenging problem for the horticulture industry because of the limited physiochemical reactivity of ethylene. Ethylene plays a very important role in the fruit life cycle and has a significant role in determining the shelf life of fruits. Limited ethylene monitoring capability results in huge losses to the horticulture industry as fruits may spoil before they reach the consumer, or they may not ripen properly. Herein we present a poly(3-hexylthiophene-2,5-diyl) (P3HT)-based organic field effect transistor as a sensing platform for ethylene with sensitivity of 25 ppm V/V...
January 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28028095/behavioral-responses-of-drosophila-suzukii-diptera-drosophilidae-to-visual-stimuli-under-laboratory-semifield-and-field-conditions
#14
Kevin B Rice, Brent D Short, Sharon K Jones, Tracy C Leskey
Drosophila suzukii Matsumura (Diptera: Drosophilidae) is an invasive pest in North America and Europe that attacks soft-skinned ripening fruit such as raspberries, blackberries, and blueberries. Little is known regarding the specific cues D. suzukii utilizes to locate and select host fruit, and inconsistencies in trap performance indicate the need for the development of improved monitoring and management techniques for this insect. Our studies focused on identifying attractive visual cues for adult D. suzukii and incorporating these cues into a potential attract-and-kill tactic for D...
December 2016: Environmental Entomology
https://www.readbyqxmd.com/read/28025888/analysis-of-the-xyloglucan-endotransglucosylase-hydrolase-gene-family-during-apple-fruit-ripening-and-softening
#15
Zongying Zhang, Nan Wang, Shenghui Jiang, Haifeng Xu, Yicheng Wang, Chuanzeng Wang, Min Li, Jingxuan Liu, Changzhi Qu, Wen Liu, Shujing Wu, Xiaoliu Chen, Xuesen Chen
Ethylene and xyloglucan endotransglucosylase/hydrolase (XTH) genes were important for fruit ripening and softening in 'Taishanzaoxia' apple. In this study, we found it was ACS1-1/-1 homozygotes in 'Taishanzaoxia' apple, which determined the higher transcription activity of ACS1. XTH1, XTH3, XTH4, XTH5, and XTH9 were mainly involved in the early fruit softening independent of ethylene, while XTH2, XTH6, XTH7, XTH8, XTH10, and XTH11 were predominantly involved in the late fruit softening dependent on ethylene...
January 18, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28012001/cell-wall-swelling-fracture-mode-and-the-mechanical-properties-of-cherry-fruit-skins-are-closely-related
#16
Martin Brüggenwirth, Moritz Knoche
Cell wall swelling, fracture mode (along the middle lamellae vs. across cell walls), stiffness, and pressure at fracture of the sweet cherry fruit skin are closely related. Skin cracking is a common phenomenon in many crops bearing fleshy fruit. The objectives were to investigate relationships between the mode of fracture, the extent of cell wall swelling, and the mechanical properties of the fruit skin using sweet cherry (Prunus avium) as a model. Cracking was induced by incubating whole fruit in deionised water or by fracturing exocarp segments (ESs) in biaxial tensile tests...
December 23, 2016: Planta
https://www.readbyqxmd.com/read/28008448/gas-exchange-in-fruits-related-to-skin-condition-and-fruit-ripening-studied-with-diode-laser-spectroscopy
#17
Jing Huang, Hao Zhang, Huiying Lin, Tianqi Li, Liang Mei, Katarina Svanberg, Sune Svanberg
No abstract text is available yet for this article.
December 1, 2016: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28005005/immediate-perception-of-a-reward-is-distinct-from-the-reward-s-long-term-salience
#18
John P McGinnis, Huoqing Jiang, Moutaz Ali Agha, Consuelo Perez Sanchez, Jeff Lange, Zulin Yu, Frederic Marion-Poll, Kausik Si
Reward perception guides all aspects of animal behavior. However, the relationship between the perceived value of a reward, the latent value of a reward, and the behavioral response remains unclear. Here we report that, given a choice between two sweet and chemically similar sugars-L- and D-arabinose-Drosophila melanogaster prefers D- over L- arabinose, but forms long-term memories of L-arabinose more reliably. Behavioral assays indicate that L-arabinose-generated memories require sugar receptor Gr43a, and calcium imaging and electrophysiological recordings indicate that L- and D-arabinose differentially activate Gr43a-expressing neurons...
December 22, 2016: ELife
https://www.readbyqxmd.com/read/27994606/lineage-specific-evolutionary-histories-and-regulation-of-major-starch-metabolism-genes-during-banana-ripening
#19
Cyril Jourda, Céline Cardi, Olivier Gibert, Andrès Giraldo Toro, Julien Ricci, Didier Mbéguié-A-Mbéguié, Nabila Yahiaoui
Starch is the most widespread and abundant storage carbohydrate in plants. It is also a major feature of cultivated bananas as it accumulates to large amounts during banana fruit development before almost complete conversion to soluble sugars during ripening. Little is known about the structure of major gene families involved in banana starch metabolism and their evolution compared to other species. To identify genes involved in banana starch metabolism and investigate their evolutionary history, we analyzed six gene families playing a crucial role in plant starch biosynthesis and degradation: the ADP-glucose pyrophosphorylases (AGPases), starch synthases (SS), starch branching enzymes (SBE), debranching enzymes (DBE), α-amylases (AMY) and β-amylases (BAM)...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27991526/putative-wrkys-associated-with-regulation-of-fruit-ripening-revealed-by-detailed-expression-analysis-of-the-wrky-gene-family-in-pepper
#20
Yuan Cheng, Golam JalalAhammed, Jiahong Yu, Zhuping Yao, Meiying Ruan, Qingjing Ye, Zhimiao Li, Rongqing Wang, Kun Feng, Guozhi Zhou, Yuejian Yang, Weiping Diao, Hongjian Wan
WRKY transcription factors play important roles in plant development and stress responses. Here, global expression patterns of pepper CaWRKYs in various tissues as well as response to environmental stresses and plant hormones were systematically analyzed, with an emphasis on fruit ripening. The results showed that most CaWRKYs were expressed in at least two of the tissues tested. Group I, a subfamily of the entire CaWRKY gene family, had a higher expression level in vegetative tissues, whereas groups IIa and III showed relatively lower expression levels...
December 19, 2016: Scientific Reports
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