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https://www.readbyqxmd.com/read/28820117/mucilaginibacter-rubeus-sp-nov-isolated-from-rhizosphere-soil
#1
Jie-Chao Wei, Le-Ni Sun, Zhuo-Xin Yuan, Xue-Ting Hou, En-Dong Yang, Yuan-Yuan Cao
A Gram-stain-negative, aerobic, non-motile, rod-shaped and non-spore-forming bacterium, designated EF23T, was isolated from rhizosphere soil of watermelon. Growth of strain EF23T was observed at 10-37 °C, at pH 5.0-9.0 and in the presence of 0-0.5 % (w/v) NaCl. Strain EF23T contained menaquinone 7 (MK-7) as the major isoprenoid quinone, and summed feature 3 (C16:1ω7c and/or iso-C15 : 0 2-OH), iso-C15 : 0, C16 : 0 and iso-C17 : 0 3-OH as the major fatty acids. Phosphatidylethanolamine was identified as the major polar lipid...
August 18, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28811758/pathological-interrelations-of-soil-borne-diseases-in-cucurbits-caused-by-fusarium-species-and-meloidogyne-incognita
#2
Yunhee Seo, Young Ho Kim
Pathological interrelations of two soil-borne diseases in cucurbits (watermelon, oriental melon, shintosa and cucumber) caused by Fusarium isolates (FI) and the root-knot nematode (RKN), Meloidogyne incognita were characterized by the fusarium disease severity index (DI), RKN gall index (GI) and eggmass index (EI) in inoculation tests using FI and RKN. Virulence of FI as determined by DI at 4 weeks after inoculation was mostly in the higher order of Fusarium proliferatum F6, F5 and Fusarium oxysporum f. sp...
August 2017: Plant Pathology Journal
https://www.readbyqxmd.com/read/28811756/pseudomonas-oleovorans-strain-kbpf-004-culture-supernatants-reduced-seed-transmission-of-cucumber-green-mottle-mosaic-virus-and-pepper-mild-mottle-virus-and-remodeled-aggregation-of-126-kda-and-subcellular-localization-of-movement-protein-of-pepper-mild-mottle
#3
Nam-Gyu Kim, Eun-Young Seo, Sang-Hyuk Han, Jun-Su Gong, Cheol-Nam Park, Ho-Seop Park, Leslie L Domier, John Hammond, Hyoun-Sub Lim
Efforts to control viral diseases in crop production include several types of physical or chemical treatments; antiviral extracts of a number of plants have also been examined to inhibit plant viral infection. However, treatments utilizing naturally selected microorganisms with activity against plant viruses are poorly documented. Here we report isolation of a soil inhabiting bacterium, Pseudomonas oleovorans strain KBPF-004 (developmental code KNF2016) which showed antiviral activity against mechanical transmission of tobamoviruses...
August 2017: Plant Pathology Journal
https://www.readbyqxmd.com/read/28810866/the-development-of-an-ivermectin-based-attractive-toxic-sugar-bait-atsb-to-target-anopheles-arabiensis
#4
Frank Chelestino Tenywa, Athumani Kambagha, Adam Saddler, Marta Ferreira Maia
BACKGROUND: An increasing number of countries in sub-Saharan Africa are moving towards malaria-elimination, mostly thanks to successful vector control campaigns. However, elimination has proven challenging, resulting in the persistence of malaria transmission. It is now accepted that in order to eliminate malaria, new complementary vector control approaches must be developed. This study describes the development of a sugar-baited resting place containing a toxic dose of ivermectin for the control of Anopheles arabiensis...
August 15, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28763978/biochemical-and-histological-contributions-to-textural-changes-in-watermelon-fruit-modulated-by-grafting
#5
Georgios A Soteriou, Anastasios S Siomos, Dimitrios Gerasopoulos, Youssef Rouphael, Soteria Georgiadou, Marios C Kyriacou
Increased watermelon fruit flesh firmness is systematically incurred with grafting on Cucurbita hybrid rootstocks (heterografting). Possible differences in mesocarp cell wall constitution and histology between heterografted, homeografted (self-grafted) and non-grafted watermelon were examined, as well as their contributions to fruit texture. Firmness correlated positively (r=0.78, p<0.001) with cell density (cellsmm(-2)) which was higher in heterografts (5.83) than homeografts (4.64) and non-grafted controls (4...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28756582/rnai-mediated-smv-p3-cistron-silencing-confers-significantly-enhanced-resistance-to-multiple-potyvirus-strains-and-isolates-in-transgenic-soybean
#6
Xiangdong Yang, Lu Niu, Wei Zhang, Jing Yang, Guojie Xing, Hongli He, Dongquan Guo, Qian Du, Xueyan Qian, Yao Yao, Qiyun Li, Yingshan Dong
Robust RNAi-mediated resistance to multiple Potyvirus strains and isolates, but not to Secovirus BPMV, was conferred by expressing a short SMV P3 hairpin in soybean plants. Engineering resistance to multiple Potyvirus strains is of great interest because of a wide variability of the virus strains, and mixed infections of multiple viruses or strains commonly associated with field grown soybean. In this study, RNAi-mediated silencing of the soybean mosaic virus (SMV) P3 cistron, which is reported to participate in virus movements and pathogenesis and to be the putative determinant of SMV virulence, was used to induce resistance to multiple Potyvirus strains and isolates in soybean...
July 29, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28753059/growth-of-salmonella-spp-and-escherichia-coli-o157-h7-on-fresh-cut-fruits-stored-at-different-temperatures
#7
Ke Feng, Wenzhong Hu, Aili Jiang, Gaowa Saren, Yongping Xu, Yaru Ji, Wenjun Shao
The objective of this work was to determine the growth potential of Salmonella spp. and Escherichia coli O157:H7 on fresh-cut honeydew melon, cantaloupe, watermelon, pitaya, mango, papaya, and pineapple stored at 5°C, 13°C, and 25°C. The results showed that both pathogens were able to grow on fresh-cut fruits except fresh-cut pineapple at 13°C and 25°C. Salmonella spp. grew more rapidly on fresh-cut honeydew melon, cantaloupe, watermelon, and mango than did E. coli O157:H7 at 13°C. The growth of both species was inhibited on fresh-cut pineapple, with that of Salmonella spp...
July 28, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28744150/radiofrequency-ablation-using-barrx-%C3%A2-for-the-endoscopic-treatment-of-gastric-antral-vascular-ectasia-a-series-of-three-cases-and-a-review-of-the-literature-on-treatment-options
#8
Anish Patel, Sunil Patel, Prasanna C Wickremesinghe, Deepak Vadada
Gastric antral vascular ectasia (GAVE), also known as "watermelon stomach", is an uncommon condition, which can cause gastrointestinal bleeding due to rupture of blood vessels that line the stomach. The pathogenesis of GAVE remains unclear; however it is thought that hemodynamic changes, mechanical stress, and autoimmune factors all have a part to play. A range of conditions are also commonly associated with the syndrome, such as portal hypertensive gastropathy, liver cirrhosis, and autoimmune disorders. Less commonly, chronic renal failure, cardiac diseases, and bone marrow transplantation have coexisted with GAVE...
2017: Clinical and Experimental Gastroenterology
https://www.readbyqxmd.com/read/28741223/citrulline-metabolism-in-plants
#9
REVIEW
Vijay Joshi, Alisdair R Fernie
Citrulline was chemically isolated more than 100 years ago and is ubiquitous in animals, plants, bacteria, and fungi. Most of the research on plant citrulline metabolism and transport has been carried out in Arabidopsis thaliana and the Cucurbitaceae family, particularly in watermelon which accumulates this non-proteinogenic amino acid to very high levels. Industrially, citrulline is produced via specially optimized microbial strains; however, the amounts present in watermelon render it an economically viable source providing that other high-value compounds can be co-extracted...
July 25, 2017: Amino Acids
https://www.readbyqxmd.com/read/28704497/genetic-mapping-of-the-lobed-leaf-1-clll1-gene-to-a-127-6-kb-region-in-watermelon-citrullus-lanatus-l
#10
Chunhua Wei, Xiner Chen, Zhongyuan Wang, Qiyan Liu, Hao Li, Yong Zhang, Jianxiang Ma, Jianqiang Yang, Xian Zhang
The lobed leaf character is a unique morphologic trait in crops, featuring many potential advantages for agricultural productivity. Although the majority of watermelon varieties feature lobed leaves, the genetic factors responsible for lobed leaf formation remain elusive. The F2:3 leaf shape segregating population offers the opportunity to study the underlying mechanism of lobed leaf formation in watermelon. Genetic analysis revealed that a single dominant allele (designated ClLL1) controlled the lobed leaf trait...
2017: PloS One
https://www.readbyqxmd.com/read/28690629/genome-wide-analysis-of-simple-sequence-repeats-in-bitter-gourd-momordica-charantia
#11
Junjie Cui, Jiaowen Cheng, Dingguo Nong, Jiazhu Peng, Yafei Hu, Weiming He, Qianjun Zhou, Narinder P S Dhillon, Kailin Hu
Bitter gourd (Momordica charantia) is widely cultivated as a vegetable and medicinal herb in many Asian and African countries. After the sequencing of the cucumber (Cucumis sativus), watermelon (Citrullus lanatus), and melon (Cucumis melo) genomes, bitter gourd became the fourth cucurbit species whose whole genome was sequenced. However, a comprehensive analysis of simple sequence repeats (SSRs) in bitter gourd, including a comparison with the three aforementioned cucurbit species has not yet been published...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28681144/the-complete-nucleotide-sequence-and-genome-organization-of-a-novel-betaflexivirus-infecting-citrullus-lanatus
#12
Min Xin, Peipei Zhang, Wenwen Liu, Yingdang Ren, Mengji Cao, Xifeng Wang
The complete nucleotide sequence of a novel positive single-stranded (+ss) RNA virus, tentatively named watermelon virus A (WVA), was determined using a combination of three methods: RNA sequencing, small RNA sequencing, and Sanger sequencing. The full genome of WVA is comprised of 8,372 nucleotides (nt), excluding the poly (A) tail, and contains four open reading frames (ORFs). The largest ORF, ORF1 encodes a putative replication-associated polyprotein (RP) with three conserved domains. ORF2 and ORF4 encode a movement protein (MP) and coat protein (CP), respectively...
July 5, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28672690/valorization-of-starchy-cellulosic-and-sugary-food-waste-into-hydroxymethylfurfural-by-one-pot-catalysis
#13
Iris K M Yu, Daniel C W Tsang, Alex C K Yip, Season S Chen, Yong Sik Ok, Chi Sun Poon
This study aimed to produce a high-value platform chemical, hydroxymethylfurfural (HMF), from food waste and evaluate the catalytic performance of trivalent and tetravalent metals such as AlCl3, CrCl3, FeCl3, Zr(O)Cl2, and SnCl4 for one-pot conversion. Starchy food waste, e.g., cooked rice and penne produced 4.0-8.1 wt% HMF and 46.0-64.8 wt% glucose over SnCl4 after microwave heating at 140 °C for 20 min. This indicated that starch hydrolysis was effectively catalyzed but subsequent glucose isomerization was rate-limited during food waste valorization, which could be enhanced by 40-min reaction to achieve 22...
October 2017: Chemosphere
https://www.readbyqxmd.com/read/28669763/new-species-in-the-papaya-ringspot-virus-cluster-insights-into-the-evolution-of-the-prsv-lineage
#14
C Desbiez, C Wipf-Scheibel, P Millot, E Verdin, G Dafalla, H Lecoq
The "Papaya ringspot virus (PRSV) cluster" of cucurbit-infecting potyviruses contains five acknowledged species that have similar biological, serological and molecular properties. Additional data suggest there are other uncharacterized species from various locations in the world that likely belong to the PRSV cluster including a new PRSV-like virus reported from Sudan in 2003. Molecular and biological data indicated that the virus from Sudan belongs to a new species, tentatively named wild melon vein banding virus (WMVBV)...
June 29, 2017: Virus Research
https://www.readbyqxmd.com/read/28662086/abscisic-acid-pathway-involved-in-the-regulation-of-watermelon-fruit-ripening-and-quality-trait-evolution
#15
Yanping Wang, Shaogui Guo, Shouwei Tian, Jie Zhang, Yi Ren, Honghe Sun, Guoyi Gong, Haiying Zhang, Yong Xu
Watermelon (Citrullus lanatus (Thunb.) Matsum. & Nakai) is a non-climacteric fruit. The modern sweet-dessert watermelon is the result of years of cultivation and selection for fruits with desirable qualities. To date, the mechanisms of watermelon fruit ripening, and the role of abscisic acid (ABA) in this process, has not been well understood. We quantified levels of free and conjugated ABA contents in the fruits of cultivated watermelon (97103; C. lanatus subsp. vulgaris), semi-wild germplasm (PI179878; C...
2017: PloS One
https://www.readbyqxmd.com/read/28659740/biochemical-physiological-and-performance-response-of-a-functional-watermelon-juice-enriched-in-l-citrulline-during-a-half-marathon-race
#16
Ascensión Martínez-Sánchez, Domingo J Ramos-Campo, Bárbara Fernández-Lobato, Jacobo A Rubio-Arias, Fernando Alacid, Encarna Aguayo
Background: Watermelon is a rich natural source of l-citrulline. This non-essential amino acid increases exercise performance. Objective: Evaluate the effect of Fashion watermelon juice enriched in l-citrulline (CWJ) (3.45 g per 500 mL) in physical performance and biochemical markers after a half-marathon race. Design: A randomised, double blind, crossover design where 2 h after drinking 500 mL of CWJ or placebo (PLA, beverage without l-citrulline) amateur male runners performed two half-marathon races...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28649028/the-optimization-and-establishment-of-quechers-uplc-ms-ms-method-for-simultaneously-detecting-various-kinds-of-pesticides-residues-in-fruits-and-vegetables
#17
REVIEW
Zhan Xiu-Ping, Ma Lin, Huang Lan-Qi, Chen Jian-Bo, Zhao Li
OBJECTIVES: The quality safety supervision and test of agricultural products urgently need a very excellent analytical method with simultaneously detecting many components in order to assess, prevent and control pesticide residues. METHODS: In this research, three fruits and three vegetables produced in Shanghai were selected as the materials, 54 pesticide residues were detected with the ultra-high performance liquid chromatography-tandem mass spectrometric (UPLC-MS/MS) method on the basis of optimized QuEChERS method according to different materials properties...
June 10, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28647325/the-processing-of-semantic-relatedness-in-the-brain-evidence-from-associative-and-categorical-false-recognition-effects-following-transcranial-direct-current-stimulation-of-the-left-anterior-temporal-lobe
#18
Emiliano Díez, Carlos J Gómez-Ariza, Antonio M Díez-Álamo, María A Alonso, Angel Fernandez
A dominant view of the role of the anterior temporal lobe (ATL) in semantic memory is that it serves as an integration hub, specialized in the processing of semantic relatedness by way of mechanisms that bind together information from different brain areas to form coherent amodal representations of concepts. Two recent experiments, using brain stimulation techniques along with the Deese-Roediger-McDermott (DRM) paradigm, have found a consistent false memory reduction effect following stimulation of the ATL, pointing to the importance of the ATL in semantic/conceptual processing...
August 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28640221/use-of-chitosan-pva-hydrogels-with-copper-nanoparticles-to-improve-the-growth-of-grafted-watermelon
#19
Homero González Gómez, Francisca Ramírez Godina, Hortensia Ortega Ortiz, Adalberto Benavides Mendoza, Valentín Robledo Torres, Marcelino Cabrera De la Fuente
Modern agriculture requires alternative practices that improve crop growth without negatively affecting the environment, as resources such as water and arable land grow scarcer while the human population continues to increase. Grafting is a cultivation technique that allows the plant to be more efficient in its utilization of water and nutrients, while nanoscale material engineering provides the opportunity to use much smaller quantities of consumables compared to conventional systems but with similar or superior effects...
June 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28627966/further-evidence-of-cucurbit-host-specificity-among-acidovorax-citrulli-groups-based-on-a-detached-melon-fruit-pathogenicity-assay
#20
Lichun Yan, Baishi Hu, Gong Chen, Mei Zhao, Ron R Walcott
Bacterial fruit blotch, caused by the gram-negative bacterium Acidovorax citrulli, is a serious economic threat to cucurbit crop production worldwide. A. citrulli strains can be divided into two genetically distinct groups, with group I strains infecting a range of cucurbit species and group II strains being predominantly associated with watermelon. Group I and II A. citrulli strains differ in their arsenal of type III secreted (T3S) effector proteins and we hypothesize that these effectors are critical for cucurbit host preference...
August 17, 2017: Phytopathology
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