Read by QxMD icon Read


William O Asiche, Oscar W Mitalo, Yuka Kasahara, Yasuaki Tosa, Eric G Mworia, Willis O Owino, Koichiro Ushijima, Ryohei Nakano, Kentaro Yano, Yasutaka Kubo
BACKGROUND: Kiwifruit are classified as climacteric since exogenous ethylene (or its analogue propylene) induces rapid ripening accompanied by ethylene production under positive feedback regulation. However, most of the ripening-associated changes (Phase 1 ripening) in kiwifruit during storage and on-vine occur largely in the absence of any detectable ethylene. This ripening behavior is often attributed to basal levels of system I ethylene, although it is suggested to be modulated by low temperature...
March 21, 2018: BMC Plant Biology
Núria Daranas, Anna Bonaterra, Jesús Francés, Jordi Cabrefiga, Emilio Montesinos, Esther Badosa
A viability qPCR (v-qPCR) assay was developed for the unambiguous detection and quantification of Lactobacillus plantarum PM411 viable cells in aerial plant surfaces. A 972 bp region of a PM411 predicted prophage with mosaic architecture enabled the identification of a PM411 strain-specific molecular marker. Three primer sets, with different amplicon lengths (92, 188, and 317 bp), and one TaqMan probe were designed. All the qPCR assays showed good linearity over a 4-log range and good efficiencies, but differed in sensitivity...
March 9, 2018: Applied and Environmental Microbiology
Christina Straub, Elena Colombi, Li Li, Hongwen Huang, Matthew D Templeton, Honour C McCann, Paul B Rainey
Interactions between commensal microbes and invading pathogens are understudied, despite their likely effects on pathogen population structure and infection processes. We describe the population structure and genetic diversity of a broad range of co-occurring Pseudomonas syringae isolated from infected and uninfected kiwifruit during an outbreak of bleeding canker disease caused by P. syringae pv. actinidiae (Psa) in New Zealand. Overall population structure was clonal and affected by ecological factors including infection status and cultivar...
March 9, 2018: Environmental Microbiology
Filippo Graziani, Nicola Discepoli, Stefano Gennai, Dimitra Karapetsa, Marco Nisi, Lea Bianchi, Nanning A Martijn Rosema, Ubele Van der Velden
BACKGROUND: To assess the nutraceutical effects of twice/daily intake of kiwifruit on periodontal parameters and systemic health before and after initial periodontal treatment (IPT). METHODS: At baseline, participants were randomly assigned to test and control group, and either consumed two kiwifruits/day for 5 months or no kiwifruit. In the first 2 months, no periodontal treatment was delivered (2 M). Subsequently, a session of full-mouth IPT within 24 hours was performed...
February 22, 2018: Journal of Periodontology
Guangwei Li, Danyang Chen, Xiaofeng Tang, Yongsheng Liu
Constitutive expression of AchGLK from A. chinensis in transgenic tomato (S. lycopersicum) confers fruits an elevated plastid biogenesis with intensified granule thylakoid stacks and increased content of nutritional compounds. Plastid development is regulated by multiple environmental and genetic factors. Golden2-like (GLK) genes, members from GARP subfamily of the MYB transcription factors, have been shown to regulate plastid biogenesis and development in several species. In tomato (S. lycopersicum), SlGLK2 gene is expressed in the fruit in a manner of latitudinal gradient and determines the green shoulder phenotype...
March 8, 2018: Planta
Dong Liang, Fan Gao, Zhiyou Ni, Lijin Lin, Qunxian Deng, Yi Tang, Xun Wang, Xian Luo, Hui Xia
Evidence exists to suggest that melatonin (MT) is important to abiotic stress tolerance in plants. Here, we investigated whether exogenous MT reduces heat damage on biological parameters and gene expression in kiwifruit ( Actinidia deliciosa ) seedlings. Pretreatment with MT alleviates heat-induced oxidative harm through reducing H₂O₂ content and increasing proline content. Moreover, MT application raised ascorbic acid (AsA) levels and the activity of antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD)...
March 6, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Jia Liu, Yuan Sui, Huizhen Chen, Yiqing Liu, Yongsheng Liu
Gray mold, caused by the fungus Botrytis cinerea , is the most significant postharvest disease of kiwifruit. In the present study, iTRAQ with LC-ESI-MS/MS was used to identify the kiwifruit proteins associated with the response to B. cinerea . A total of 2,487 proteins in kiwifruit were identified. Among them, 292 represented differentially accumulated proteins (DAPs), with 196 DAPs having increased, and 96 DAPs having decreased in accumulation in B. cinerea -inoculated vs. water-inoculated, control kiwifruits...
2018: Frontiers in Plant Science
A M Twidle, D Barker, A G Seal, B Fedrizzi, D M Suckling
Volatiles emitted from unpollinated in situ flowers were collected from two male cultivars, 'M33', 'M91', and one female cultivar 'Zesy002' (Gold3) of kiwifruit (Actinidia chinensis var. chinensis). The samples were found to contain 48 compounds across the three cultivars with terpenes and straight chain alkenes dominating the headspace. Electrophysiological responses of honey bees (Apis mellifera) and bumble bees (Bombus terrestris) to the headspace of the kiwifruit flowers were recorded. Honey bees consistently responded to 11 floral volatiles from Gold3 pistillate flowers while bumble bees consistently responded to only five compounds from the pistillate flowers...
February 27, 2018: Journal of Chemical Ecology
Monthathip Thongkum, Wachiraya Imsabai, Parichart Burns, Peter A McAtee, Robert J Schaffer, Andrew C Allan, Saichol Ketsa
Rapid fruit ripening is a significant problem that limits the shelf life of durian, with ethylene having a major impact on the regulation of this event. Durian treated with ethephon ripened 3 d after treatment with increased pulp total soluble solids, ethylene production of the whole fruit and decreased pulp firmness compared to the control fruit. 1-MCP treatment delayed ripening by up to 9 d with inhibited accumulation of total soluble solids, color change, softening and ethylene production. Genes related to ethylene perception (DzETR1 and DzETR2) and the signaling pathway (DzCTR1, DzEIL1 and DzEIL2) in the pulp were investigated during this process, using qPCR to quantify changes in gene transcription...
February 10, 2018: Plant Physiology and Biochemistry: PPB
David P Richardson, Juliet Ansell, Lynley N Drummond
PURPOSE: To describe the nutritional and health attributes of kiwifruit and the benefits relating to improved nutritional status, digestive, immune and metabolic health. The review includes a brief history of green and gold varieties of kiwifruit from an ornamental curiosity from China in the 19th century to a crop of international economic importance in the 21st century; comparative data on their nutritional composition, particularly the high and distinctive amount of vitamin C; and an update on the latest available scientific evidence from well-designed and executed human studies on the multiple beneficial physiological effects...
February 22, 2018: European Journal of Nutrition
Sanjay Kumar Gupta, Faiz Ahmed Ansari, Mahmoud Nasr, Mayuri Chabukdhara, Faizal Bux
This study presented a comprehensive analysis of heavy metal contents in foodstuffs and the associated health risk for the residential population in Durban, South Africa. The concentrations of elements in fruits and vegetables, respectively, were (in mg kg-1 dry weight) Cu, 0.52-1.47 and 0.27-2.25; Zn, 0.30-3.05 and 0.56-6.24, Fe, 1.70-22.60 and 0.73-44.90; Mn, 0.37-28.50 and 0.67-13.70; Cr, 0.47-1.47 and 0.37-3.06; Ni 0.03-1.14 and 0.11-2.5;, and Pb, 1.52-3.45 and 1.57-4.52. Multivariate analysis revealed that pineapple in fruits and turnip and carrot in vegetables contained remarkable components of trace metals...
February 19, 2018: Environmental Monitoring and Assessment
S Pérez-Burillo, M J Oliveras, J Quesada, J A Rufián-Henares, S Pastoriza
Fruits are foods that contain plenty of vitamins, minerals and some bioactive phytochemicals like polyphenols. Thus, fruits may exert different functional properties on human health, some of which are directly related to their antioxidant capacity like cancer or atherosclerosis. Owing to globalization, consumers have a wide repertory of fruits throughout the year. Among them, tropical and subtropical fruits are steadily expanding, as well as the studies about them. In this sense, this timely review focused on the nutritional value and chemical composition of persimmon and kiwifruit, two tropical fruits with a protective role on different chronic diseases...
March 2018: Food Research International
X Zhu, L Pan, T Xiao, X Ren, Z Liu
Kiwifruit are a popular fruit worldwide; however, plant growth is threatened by abiotic stresses such as drought and high temperatures. Niacin treatment in plants has been shown to increase NADPH levels, thus enhancing abiotic stresses tolerance. Here, we evaluate the effect of niacin solution spray treatment on NADPH levels in the kiwifruit cultivars Hayward and Xuxiang. We found that spray treatment with niacin solution promoted NADPH and NADP+ levels and decreased both O2·- production and H2O2 contents in leaves during a short period...
February 1, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
Junjie Yi, Biniam Kebede, Kristiani Kristiani, Tara Grauwet, Ann Van Loey, Marc Hendrickx
Cloud loss, enzymatic browning, and flavor changes are important quality defects of cloudy fruit juices determining consumer acceptability. The development of clean label options to overcome such quality problems is currently of high interest. Therefore, this study investigated the effect of kiwifruit puree (clean label ingredient) and high pressure homogenization on quality changes of cloudy apple juice using a multivariate approach. The use of kiwifruit puree addition and high pressure homogenization resulted in a juice with improved uniformity and cloud stability by reducing particle size and increasing viscosity and yield stress (p < 0...
May 30, 2018: Food Chemistry
A Di Francesco, M Mari, L Ugolini, E Baraldi
Kiwifruit, wounded at the equator or by pedicel removal, to simulate the stem end wound, were treated with Aureobasidium pullulans (L1 and L8 strains) and subsequently inoculated with conidia of Botrytis cinerea. Fruits were stored at -1 °C in normal refrigeration (NR) or in controlled atmosphere (CA) (2% O2; 4.5% CO2). After 4 months, both antagonists significantly reduced the disease in all experiments, L1 better than L8. In NR, their efficacy was higher than 80%. In CA, the disease reduction was lower: between 30% (L1) and 60% (L8)...
June 2018: Food Microbiology
Yool-Ah Kim, A M Abd El-Aty, Md Musfiqur Rahman, Ji Hoon Jeong, Ho-Chul Shin, Jing Wang, SungShik Shin, Jae-Han Shim
In the present study, a liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) method with a minimal matrix effect (ME) was developed and validated for simultaneous determination of a diverse range of pesticides (49) in kiwifruit. Samples extracted by the quick, easy, cheap, effective, rugged, and safe (QuEChERS) citrate-buffered method were analyzed either without purification or following purification (with primary secondary amine (PSA) or PSA + graphitized carbon black (GCB)). With the addition of a clean-up step, the suppression of the ME decreased, with a higher number of pesticides determined by the application of PSA + GCB...
February 15, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Liya Mathew, Andrew McLachlan, Rubina Jibran, David J Burritt, Ranjith Pathirana
Cryopreservation is a reliable and cost-effective method for the long-term preservation of clonally propagated species. The number of vegetatively propagated species conserved by cryopreservation is increasing through development of vitrification-based methods; droplet vitrification in particular is becoming the preferred method for many species, as it ensures fast freezing and thawing rates. This research investigated if cold, antioxidant and osmotic pre-treatments could maintain the structural integrity of cells, thence aid in developing a droplet vitrification protocol for kiwifruit using Actinidia chinensis var...
February 5, 2018: Protoplasma
Rulin Wang, Qing Li, Shisong He, Yuan Liu, Mingtian Wang, Gan Jiang
OBJECTIVE: Bacterial canker of kiwifruit caused by Pseudomonas syringae pv. actinidiae (Psa) is a major threat to the kiwifruit industry throughout the world and accounts for substantial economic losses in China. The aim of the present study was to test and explore the possibility of using MaxEnt (maximum entropy models) to predict and analyze the future large-scale distribution of Psa in China. METHOD: Based on the current environmental factors, three future climate scenarios, which were suggested by the fifth IPCC report, and the current distribution sites of Psa, MaxEnt combined with ArcGIS was applied to predict the potential suitable areas and the changing trend of Psa in China...
2018: PloS One
Marlena C Kruger, Catherine Middlemiss, Shinichi Katsumata, Yuko Tousen, Yoshiko Ishimi
BACKGROUND AND OBJECTIVES: Isoflavone (daidzein and genistein) interventions in postmenopausal women have produced inconsistent skeletal benefits, partly due to population heterogeneity in daidzein metabolism to equol by enteric bacteria. This study assessed changes in microflora and bone turnover in response to isoflavone and ki-wifruit supplementation in New Zealand postmenopausal women. METHODS AND STUDY DESIGN: Healthy women 1-10 years post-menopause were randomly allocated to group A (n=16) or B (n=17) for a 16-week crossover trial...
2018: Asia Pacific Journal of Clinical Nutrition
Elena Baldi, Grazia Marino, Moreno Toselli, Claudio Marzadori, Claudio Ciavatta, Marta Tavoni, Matteo Di Giosia, Matteo Calvaresi, Giuseppe Falini, Francesco Zerbetto
Fe-EDDHSA/CaCO3 hybrid crystals are synthesized and tested in vitro to determine their effect in treating iron chlorosis in kiwifruit plants, used as a proof of concept. Under the alkaline conditions provided by the calcareous substrate, plants release protons that dissolve the hybrids and trigger Fe uptake. These CaCO3 hybrids represent a new system for active molecule delivery in agriculture.
January 29, 2018: Chemical Communications: Chem Comm
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

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"