keyword
https://read.qxmd.com/read/38546393/hypoxia-in-tomato-solanum-lycopersicum-fruit-during-ripening-biophysical-elucidation-by-a-3d-reaction-diffusion-model
#1
JOURNAL ARTICLE
Hui Xiao, Pieter Verboven, Shuai Tong, Ole Pedersen, Bart Nicolaï
Respiration provides energy, substrates and precursors to support physiological changes of the fruit during climacteric ripening. A key substrate of respiration is oxygen that needs to be supplied to the fruit in a passive way by gas transfer from the environment. Oxygen gradients may develop within the fruit due to its bulky size and the dense fruit tissues, potentially creating hypoxia that may have a role in the spatial development of ripening. This study presents a three-dimensional reaction-diffusion model using tomato (Solanum lycopersicum) fruit as a test subject, combining the multiscale fruit geometry generated from magnetic resonance imaging and micro-computed tomography with varying respiration kinetics and contrasting boundary resistances obtained through independent experiments...
March 28, 2024: Plant Physiology
https://read.qxmd.com/read/38546046/a-transcriptional-cascade-mediated-by-two-apetala2-family-members-orchestrates-carotenoid-biosynthesis-in-tomato
#2
JOURNAL ARTICLE
Xiaoqing He, Kaidong Liu, Yi Wu, Weijie Xu, Ruochen Wang, Julien Pirrello, Mondher Bouzayen, Mengbo Wu, Mingchun Liu
Carotenoids are important nutrients for human health that must be obtained from plants since they cannot be biosynthesized by the human body. Dissecting the regulatory mechanism of carotenoid metabolism in plants represents the first step toward manipulating carotenoid contents in plants by molecular design breeding. In this study, we determined that SlAP2c, an APETALA2 (AP2) family member, acts as a transcriptional repressor to regulate carotenoid biosynthesis in tomato (Solanum lycopersicum). Knockout of SlAP2c in both the "MicroTom" and "Ailsa Craig" backgrounds resulted in greater lycopene accumulation, whereas overexpression of this gene led to orange-ripe fruit with significantly lower lycopene contents than the wild type...
March 28, 2024: Journal of Integrative Plant Biology
https://read.qxmd.com/read/38542931/viscosity-flow-curves-of-agar-and-the-bounded-ripening-growth-model-of-the-gelation-onset
#3
JOURNAL ARTICLE
Vincenzo Villani
The gelation kinetics of agar aqueous solutions were studied by means of the viscosity flow curves using a coaxial Couette cylinder viscometer. The viscosity curves show an unusual sigmoidal trend or an exponential decay to a viscous steady state. An original theory of gelation kinetics was developed considering the coarsening of increasingly larger and more stable clusters due to Ostwald ripening and the breakup of clusters that were too large due to the instability of rotating large particles induced by the shear rate...
March 14, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38540868/volatilomics-based-discovery-of-key-volatiles-affecting-flavor-quality-in-tomato
#4
JOURNAL ARTICLE
Zhonghui Zhang, Weizhen Ye, Chun Li, Haihong Zhou, Chao Wang, Penghui Liu, Binxin Zhou, Hanqing Zhao, Shouchuang Wang, Jun Yang
Volatile accumulation during tomato ripening greatly affects the fruit flavor. In this study, four accessions from each of the three tomato subgroups (BIG, S. lycopersicum , CER, S. lycopersicumvar. Cerasiforme , and PIM, S. pimpinellifolium ) were subjected to a sensory evaluation. The CER subgroup had the highest fruit-flavor score. Using a Headspace solid-phase microextraction/gas chromatography-mass spectrometer (HP-SPME/GC-MS), a volatile database containing 94 volatiles was created. Pentanal accumulated in green fruits and 1-pentanol in red fruits...
March 14, 2024: Foods (Basel, Switzerland)
https://read.qxmd.com/read/38540847/exploring-new-horizons-for-wine-grapes-modulating-functional-effects-by-varying-harvest-timing-and-solar-exposure
#5
JOURNAL ARTICLE
Daniel Rico, Daniel Schorn-García, Laura Aceña, María Jesús García-Casas, Olga Busto, Ricard Boqué, Montserrat Mestres, Ana Belén Martín-Diana
Grenache (GN) and Cabernet Sauvignon (CS) are two traditional red grape varieties widely cultivated in the Mediterranean area and both late-ripening cultivars, which makes them less sensitive to global warming conditions and more stable to harvest timing. Although different studies have evaluated the final antioxidant properties of grapes and pomaces, few studies have explored the effect of sun exposure and harvest on the nutritional and antioxidant properties of these products. This study investigates the control of sunlight and ripening as tools to tailor nutritional and antioxidant properties of grape juices (GJ) and their byproducts (pomace GP)...
March 12, 2024: Foods (Basel, Switzerland)
https://read.qxmd.com/read/38540832/application-of-l-cysteine-hydrochloride-delays-the-ripening-of-harvested-tomato-fruit
#6
JOURNAL ARTICLE
Yunbo Song, Hanzhi Liang, Jiechun Peng, Shenghua Ding, Xuewu Duan, Yang Shan
Fruit ripening is controlled by internal factors such as hormones and genetic regulators, as well as external environmental factors. However, the impact of redox regulation on fruit ripening remains elusive. Here, we explored the effects of L-cysteine hydrochloride (LCH), an antioxidant, on tomato fruit ripening and elucidated the underlying mechanism. The application of LCH effectively delayed tomato fruit ripening, leading to the suppression of carotenoid and lycopene biosynthesis and chlorophyll degradation, and a delayed respiration peak...
March 9, 2024: Foods (Basel, Switzerland)
https://read.qxmd.com/read/38540793/crystallization-of-ethylene-plant-hormone-receptor-screening-for-structure
#7
JOURNAL ARTICLE
Buket Rüffer, Yvonne Thielmann, Moritz Lemke, Alexander Minges, Georg Groth
The plant hormone ethylene is a key regulator of plant growth, development, and stress adaptation. Many ethylene-related responses, such as abscission, seed germination, or ripening, are of great importance to global agriculture. Ethylene perception and response are mediated by a family of integral membrane receptors (ETRs), which form dimers and higher-order oligomers in their functional state as determined by the binding of Cu(I), a cofactor to their transmembrane helices in the ER-Golgi endomembrane system...
March 20, 2024: Biomolecules
https://read.qxmd.com/read/38540374/cloning-and-analysis-of-expression-of-genes-related-to-carotenoid-metabolism-in-different-fruit-color-mutants-of-pepper-capsicum-annuum-l
#8
JOURNAL ARTICLE
Penglong Feng, Yayi Wang, Junqin Wen, Yanjing Ren, Qiwen Zhong, Quanhui Li
The formation of fruit color in pepper is closely related to the processes of carotenoid metabolism. In this study, red wild-type pepper XHB, SP01, PC01 and their corresponding mutants H0809 (orange), SP02 (yellow), and PC02 (orange) were used as research materials. The Ggps , Psy , Lcyb , Crtz , Zep , and Ccs genes involved in carotenoid biosynthesis were cloned, and bioinformatics and expression analyses were carried out. The results showed that the full lengths of the six genes were 1110 bp, 2844 bp, 1497 bp, 2025 bp, 510 bp, and 1497 bp, and they encoded 369, 419, 498, 315, 169, and 498 amino acids, respectively...
February 28, 2024: Genes
https://read.qxmd.com/read/38539906/syrah-grape-polyphenol-extracts-protect-human-skeletal-muscle-cells-from-oxidative-and-metabolic-stress-induced-by-excess-of-palmitic-acid-effect-of-skin-seed-ripening-stage
#9
JOURNAL ARTICLE
Adriana Capozzi, Auriane Dudoit, Luca Garcia, Gilles Carnac, Gérald Hugon, Cédric Saucier, Catherine Bisbal, Karen Lambert
Metabolic skeletal muscle (SM) dysfunction, triggered by increased oxidative stress and mitochondrial impairment, is a pivotal contributor to obesity-associated insulin resistance (IR). Addressing obesity and SM IR demands substantial lifestyle changes including regular exercise and dietary adjustments that are difficult to follow over time. This prompted exploration of alternative approaches. Grape polyphenols (GPPs) have demonstrated a positive impact on metabolism, although few studies have focused on SM...
March 19, 2024: Antioxidants (Basel, Switzerland)
https://read.qxmd.com/read/38537391/introgression-of-osap47-by-marker-assisted-selection-enhanced-resistance-against-southern-rice-black-streaked-dwarf-virus-disease
#10
JOURNAL ARTICLE
Feng Lin, Dedao Jing, Jiayuan Zhang, Yue Sun, Linlin Du, Chenyang Li, Ying Lan, Tong Zhou
Southern rice black-streaked dwarf virus disease (SRBSDVD) is the most destructive viral disease in rice. In order to breeding resistant cultivars, Insertion-Deletion (InDel) markers were developed linked to OsAP47, the first isolated major resistance gene against SRBSDVD. Marker-assisted selection (MAS) was conducted to introduce this gene into the commercial variety. A rice line carrying homozygous resistance allele of OsAP47 was selected and named Kanghei No. 201 (KH201). Evaluated by artificial inoculation, KH201 showed significantly higher resistance than the recurrent parent Suxiu No...
March 19, 2024: Virology
https://read.qxmd.com/read/38535698/short-chain-sulfur-confined-into-nitrogen-doped-hollow-carbon-nanospheres-for-high-capacity-potassium-storage
#11
JOURNAL ARTICLE
Wenhan Liu, Tengfei Shi, Fang Liu, Chen Yang, Fan Qiao, Kang Han, Chunhua Han, Jiashen Meng, Xuanpeng Wang
Carbon-based materials are one of the ideal negative electrode materials for potassium ion batteries. However, the limited active sites and sluggish diffusion ion kinetics still hinder its commercialization process. To address these problems, we design a novel carbon composite anode, by confining highly reactive short-chain sulfur molecules into nitrogen-doped hollow carbon nanospheres (termed SHC-450). The formation process involves the controlled synthesis of hollow polyaniline (PANI) nanospheres as precursors via an Ostwald ripening mechanism and subsequent sulfuration treatment...
March 20, 2024: Nanomaterials
https://read.qxmd.com/read/38534230/competitive-immunoassay-in-a-microfluidic-biochip-for-in-field-detection-of-abscisic-acid-in-grapes
#12
JOURNAL ARTICLE
Cristiana Domingues, Rui Meirinho, Rodolfo G Rodrigues, Ana Margarida Fortes, Virginia Chu, João Pedro Conde
Viticulture and associated products are an important part of the economy in many countries. However, biotic and abiotic stresses impact negatively the production of grapes and wine. Climate change is in many aspects increasing both these stresses. Routine sample retrievals and analysis tend to be time-consuming and require expensive equipment and skilled personnel to operate. These challenges could be overcome through the development of a miniaturized analytic device for early detection of grapevine stresses in the field...
February 26, 2024: Biosensors
https://read.qxmd.com/read/38531296/a-combination-of-omics-based-analyses-to-elucidate-the-effect-of-nacl-concentrations-on-the-metabolites-and-microbial-dynamics-during-the-ripening-fermentation-of-pixian-douban
#13
JOURNAL ARTICLE
Chi Zhao, Petri Penttinen, Lingzi Zhang, Ling Dong, Fengju Zhang, Suyi Zhang, Zhihua Li, Xiaoping Zhang
The study investigated the effect of different sodium chloride (NaCl) concentrations (10%, 15%, and 20%) on the ripening fermentation of Pixian-Douban, a traditional fermented condiment. The results showed that NaCl affected the dynamics of physicochemical parameters, volatile components, fatty acids, amino metabolites, organic acids, and microbial composition, and their dynamic modes were different. After 253 days fermentation, the 10% NaCl Pixian-Douban had significantly (p < 0.05) higher levels of total organic acids (20,308...
March 18, 2024: Food Chemistry
https://read.qxmd.com/read/38529677/coarsening-of-quasi-two-dimensional-emulsions-formed-by-islands-in-free-standing-smectic-films
#14
JOURNAL ARTICLE
Christoph Klopp, Torsten Trittel, Ralf Stannarius
We study the coarsening behavior of assemblies of islands on smectic A freely suspended films in ISS microgravity experiments. The islands can be regarded as liquid inclusions in a two-dimensional fluid in analogy to liquid droplets of the discontinuous phase of an emulsion. The coarsening is effectuated by two processes, predominantly by island coalescence, but to some extend also by Ostwald ripening, whereby large islands grow at the expense of surrounding smaller ones. A peculiarity of this system is that the continuous and the discontinuous phases consist of the same material...
March 26, 2024: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://read.qxmd.com/read/38526912/the-chemistry-of-spinel-ferrite-nanoparticle-nucleation-crystallization-and-growth
#15
JOURNAL ARTICLE
Henrik L Andersen, Cecilia Granados-Miralles, Kirsten M Ø Jensen, Matilde Saura-Múzquiz, Mogens Christensen
The nucleation, crystallization, and growth mechanisms of MnFe2 O4, CoFe2 O4 , NiFe2 O4 , and ZnFe2 O4 nanocrystallites prepared from coprecipitated transition metal (TM) hydroxide precursors treated at sub-, near-, and supercritical hydrothermal conditions have been studied by in situ X-ray total scattering (TS) with pair distribution function (PDF) analysis, and in situ synchrotron powder X-ray diffraction (PXRD) with Rietveld analysis. The in situ TS experiments were carried out on 0.6 M TM hydroxide precursors prepared from aqueous metal chloride solutions using 24...
March 25, 2024: ACS Nano
https://read.qxmd.com/read/38526315/monodisperse-ag-au-nanoparticles-via-solvated-metal-atom-dispersion-and-digestive-ripening-in-ionic-liquid
#16
JOURNAL ARTICLE
Saibalendu Sarkar, Balaji R Jagirdar
Digestive ripening (DR) is a postsynthetic protocol for the transformation of a colloid consisting of polydisperse metal nanoparticles (NPs) into a colloid composed of nearly monodisperse metal nanoparticles. This process is brought about by the digestive ripening agent, typically an organic ligand with a long alkyl chain at one end and a functional group at the other, at the boiling point of the solvent in which it is carried out, requiring long periods of time. In this work, digestive ripening of polydisperse Ag and Au nanoparticles brought about by ionic liquids (ILs) under very mild conditions (∼273 K, ∼30 min) to obtain nearly monodisperse nanoparticles has been demonstrated...
March 25, 2024: Langmuir: the ACS Journal of Surfaces and Colloids
https://read.qxmd.com/read/38525402/comparison-of-misoprostol-with-foley-catheter-vs-misoprostol-alone-for-cervical-ripening-and-induction-of-labor-in-patients-with-premature-rupture-of-membrane-a-randomized-clinical-trial-study
#17
JOURNAL ARTICLE
Seyyedeh Azam PoorHosseini, Masoumeh Mirteimouri, Maliheh RakhshaniFar, Seyede Houra Mousavi Vahed, Fedyeh Haghollahi
BACKGROUND: This study evaluates the effect of misoprostol alone in comparison with misoprostol with Foley catheter in preparing the cervix for induction of labor in women with premature rupture of the amniotic sac. MATERIALS AND METHODS: This randomized clinical trial study was performed from 2017 to 2019 on 206 pregnant women with singleton pregnancy and gestational age more than 36 weeks, whose rupture of the amniotic sac had occurred less than 12 hours and had a Bishop score less than 4...
2024: Advanced Biomedical Research
https://read.qxmd.com/read/38524874/disequilibrium-reaction-pathways-and-the-twin-mediated-growth-of-tabular-forsterite-during-contact-metamorphism-of-quartz-bearing-dolomite
#18
JOURNAL ARTICLE
Marisa D Acosta, Lukas P Baumgartner
The forsterite zone of the Ubehebe Peak contact aureole, Death Valley, USA consists of an outer zone of tabular/jack-straw olivine and an inner zone of subequant polyhedral olivine. Subequant polyhedral forsterite crystals close to the intrusion are small and tabular forsterite crystals farther away are larger. To investigate the formation of the two morphologies, forsterite growth experiments were conducted in cold seal pressure vessels in the CaO-MgO-SiO2 -CO2 -H2 O system. Forsterite precipitation follows a disequilibrium reaction pathway made of three reactions: [1] tabular forsterite growth from quartz and dolomite, [2] forsterite growth from tremolite dissolution, and [3] subequant polyhedral forsterite growth from tabular forsterite dissolution...
2024: Contributions to Mineralogy and Petrology. Beiträge Zur Mineralogie und Petrologie
https://read.qxmd.com/read/38522680/polyvinyl-alcohol-kappa-carrageenan-based-package-film-with-simultaneous-incorporation-of-ferric-ion-and-polyphenols-from-capsicum-annuum-leaves-for-fruit-shelf-life-extension
#19
JOURNAL ARTICLE
Xiaojun Li, Yiyuan Fan, Juan Guo, Ran Li, Zeqi Liu, Yarui Hou, Zhican Qu, Qingye Liu
Bio-based food packaging materials have elicited growing interests due to their great degradability, high safety and active biofunctions. In this work, by simultaneously introducing the polyphenolic extracts from Capsicum annuum leaves and ferric ion (Fe3+ ) into the Polyvinyl alcohol/kappa-carrageenan (PVA/κ-carrageenan)-based film-forming matrix, an active package film was developed, with the purpose to improve the food shelf life. The experimental results indicated that the existence of Fe3+ can not only improve the mechanical properties owing to the multiple dynamic coordinated interactions, but also endow the composite films with excellent fire-retardancy...
March 22, 2024: International Journal of Biological Macromolecules
https://read.qxmd.com/read/38520965/the-myb-transcription-factor-smmyb113-directly-regulates-ethylene-dependent-flower-abscission-in-eggplant
#20
JOURNAL ARTICLE
Jing Chen, Senlin Jiang, Guobin Yang, Lujun Li, Jing Li, Fengjuan Yang
Flower abscission is an important developmental process that can significantly reduce the yield of horticultural plants. We previously reported that SmMYB113 is a key transcription factor promoting anthocyanin biosynthesis and improve fruit quality. However, the overexpression of SmMYB113 in eggplant increased flower drop rate and reduced fruit yield. Here, we elucidate the regulatory mechanisms of SmMYB113 on flower abscission in eggplant. RNA-seq analysis indicated that the regulation of flower abscission by SmMYB113 was associated with altered expression of genes related to ethylene biosynthesis and signal transduction, including ethylene biosynthetic genes SmACS1, SmACS8 and SmACO4...
March 19, 2024: Plant Physiology and Biochemistry: PPB
keyword
keyword
48611
1
2
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.