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https://www.readbyqxmd.com/read/28717173/liquid-phase-sequence-capture-and-targeted-re-sequencing-revealed-novel-polymorphisms-in-tomato-genes-belonging-to-the-mep-carotenoid-pathway
#1
Irma Terracciano, Concita Cantarella, Carlo Fasano, Teodoro Cardi, Giuseppe Mennella, Nunzio D'Agostino
Tomato (Solanum lycopersicum L.) plants are characterized by having a variety of fruit colours that reflect the composition and accumulation of diverse carotenoids in the berries. Carotenoids are extensively studied for their health-promoting effects and this explains the great attention these pigments received by breeders and researchers worldwide. In this work we applied Agilent's SureSelect liquid-phase sequence capture and Illumina targeted re-sequencing of 34 tomato genes belonging to the methylerythritol phosphate (MEP) carotenoid pathway on a panel of 48 genotypes which differ for carotenoid content calculated as the sum of β-carotene, cis- and trans-lycopene...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716406/the-tomato-b-type-cyclin-gene-slcycb2-plays-key-roles-in-reproductive-organ-development-trichome-initiation-terpenoids-biosynthesis-and-prodenia-litura-defense
#2
Shenghua Gao, Yanna Gao, Cheng Xiong, Gang Yu, Jiang Chang, Qihong Yang, Changxian Yang, Zhibiao Ye
Cyclins exist extensively in various plant species. Among them, B-type cyclins play important roles in the transition of G2-to-M. However, few B-type cyclins have been reported to participate in reproductive organ development and trichome formation. In this study, transgene analysis showed that SlCycB2 overexpression caused abnormal flower with the unclosed stamen, shortened style and aberrant pollen. In addition, nearly all non-glandular trichomes, as well as the glandular ones were disappeared. On the contrary, suppression of SlCycB2 could promote type III and type V trichomes formation...
September 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28715118/microrna159-targeted-slgamyb-transcription-factors-are-required-for-fruit-set-in-tomato
#3
Eder Marques da Silva, Geraldo Felipe Ferreira E Silva, Débora Brussolo Bidoia, Mariana da Silva Azevedo, Frederico Almeida de Jesus, Lilian Ellen Pino, Lázaro Eustáquio Pereira Peres, Esther Carrera, Isabel López-Díaz, Fabio Tebaldi Silveira Nogueira
The transition from flowering to fruit production, namely fruit set, is crucial to ensure successful sexual plant reproduction. Although studies have described the importance of hormones (i.e., auxin and gibberelins) in controlling fruit set after pollination and fertilization, the role of microRNA-based regulation during ovary development and fruit set is still poorly understood. Here we show that microRNA159/GAMYB1 and -2 pathway (the miR159/GAMYB1/2 module) is crucial for tomato ovule development and fruit set...
July 17, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28714108/assessing-the-spatial-distribution-of-tuta-absoluta-lepidoptera-gelechiidae-eggs-in-open-field-tomato-cultivation-through-geostatistical-analysis
#4
Júlio C Martins, Marcelo C Picanço, Ricardo S Silva, Alfredo H R Gonring, Tarcísio V S Galdino, Raul N C Guedes
BACKGROUND: The spatial distribution of insects is due to the interaction between individuals and the environment. Knowledge about the within-field pattern of spatial distribution of a pest is critical to planning control tactics, developing efficient sampling plans, and predicting the pests' damages. The leaf miner Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is the main pest in tomato crops in several regions of the world. Despite the importance of this pest, the pattern of spatial distribution of T...
July 17, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28713785/inactivation-of-heat-adapted-and-chlorine-adapted-listeria-monocytogenes-atcc-7644-on-tomatoes-using-sodium-dodecyl-sulphate-levulinic-acid-and-sodium-hypochlorite-solution
#5
Oluwatosin Ademola Ijabadeniyi, Elizabeth Mnyandu
The effectiveness of sodium dodecyl sulphate (SDS), sodium hypochlorite solution and levulinic acid in reducing the survival of heat adapted and chlorine adapted Listeria monocytogenes ATCC 7644 was evaluated. The results against heat adapted L. monocytognes revealed that sodium hypochlorite solution was the least effective, achieving log reduction of 2.75, 2.94 and 3.97 log colony forming unit (CFU)/mL for 1, 3 and 5 minutes, respectively. SDS was able to achieve 8 log reduction for both heat adapted and chlorine adapted bacteria...
April 13, 2017: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/28713400/overexpression-of-e3-ubiquitin-ligase-gene-adbil-contributes-to-resistance-against-chilling-stress-and-leaf-mold-disease-in-tomato
#6
Shuangchen Chen, Hongjiao Zhao, Mengmeng Wang, Jidi Li, Zhonghong Wang, Fenghua Wang, Airong Liu, Golam J Ahammed
Ubiquitination is a common regulatory mechanism, playing a critical role in diverse cellular and developmental processes in eukaryotes. However, a few reports on the functional correlation between E3 ubiquitin ligases and reactive oxygen species (ROS) or reactive nitrogen species (RNS) metabolism in response to stress are currently available in plants. In the present study, the E3 ubiquitin ligase gene AdBiL (Adi3 Binding E3 Ligase) was introduced into tomato line Ailsa Craig via Agrobacterium-mediated method...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28712082/biological-nutrient-recovery-from-culturing-of-pearl-gourami-trichogaster-leerii-by-cherry-tomato-solanum-lycopersicum-in-aquaponic-system
#7
Shima Makhdom, Seyed Pezhman Hosseini Shekarabi, Mehdi Shamsaie Mehrgan
The possibility of using different densities of cherry tomato as a bio-filter in a simple media-based aquaponic system to recycle nutrients from pearl gourami intensive culture wastewater was evaluated. Water quality parameters including total ammonia nitrogen (TAN), nitrite (NO2(-)), nitrate (NO3(-)), phosphate (PO4(3-)), pH, and dissolved oxygen (DO) were determined in outlet of the aquaponic system during a 60-day experimental period. Cherry tomato was planted at four densities of 0 (control), 3 (T1), 6 (T2), and 9 (T3) plants per aquaponic unit with a constant fish stock density...
July 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28710536/resistance-to-tomato-leaf-curl-new-delhi-virus-in-melon-is-controlled-by-a-major-qtl-located-in-chromosome-11
#8
Cristina Sáez, Cristina Esteras, Cecilia Martínez, María Ferriol, Narinder P S Dhillon, Carmelo López, Belén Picó
Identification of three genomic regions and underlying candidate genes controlling the high level of resistance to ToLCNDV derived from a wild melon. SNP markers appropriated for MAS management of resistance. Tomato leaf curl New Delhi virus (ToLCNDV) is a bipartite begomovirus that severely affects melon crop (Cucumis melo) in the main production areas of Spain since 2012. In this work, we evaluated the degree of resistance of four accessions (two belonging to the subsp. agrestis var. momordica and two to the wild agrestis group) and their corresponding hybrids with a susceptible commercial melon belonging to the subsp...
July 14, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28710129/manipulation-of-a-senescence-associated-gene-improves-fleshy-fruit-yield
#9
Bruno S Lira, Giovanna Gramegna, Bruna Trench, Frederico Rocha Rodrigues Alves, Éder Marques Silva, Geraldo Felipe Ferreira Silva, Venkatesh Periyakavanam Thirumalaikumar, Alessandra Cavalcanti Duarte Lupi, Diego Demarco, Eduardo Purgatto, Fabio Ts Nogueira, Salma Balazadeh, Luciano Freschi, Magdalena Rossi
Senescence is the process that marks the end of leaves lifespan. As it progresses, the massive macromolecular catabolism dismantles the chloroplasts and, consequently, decreases the photosynthetic capacity of these organs. Thus, senescence manipulation is a strategy to improve plant yield by extending the leaf photosynthetically active window of time. However, it remains to be addressed if this approach can improve fleshy fruit production and nutritional quality. One way to delay senescence initiation is by regulating key transcription factors (TFs) involved in triggering this process, such as the NAC TF ORESARA1 (ORE1)...
July 14, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28708030/growth-kinetics-of-listeria-monocytogenes-in-cut-produce
#10
Joelle K Salazar, Surasri N Sahu, Ian M Hildebrandt, Lijie Zhang, Yan Qi, Girvin Liggans, Atin R Datta, Mary Lou Tortorello
Cut produce continues to constitute a significant portion of the fresh fruit and vegetables sold directly to consumers. As such, the safety of these items during storage, handling, and display remains a concern. Cut tomatoes, cut leafy greens, and cut melons, which have been studied in relation to their ability to support pathogen growth, have been specifically identified as needing temperature control for safety. Data are needed on the growth behavior of foodborne pathogens in other types of cut produce items that are commonly offered for retail purchase and are potentially held without temperature control...
July 14, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28707084/a-novel-plant-dna-extraction-method-using-filter-paper-based-96-well-spin-plate
#11
Rui Shi, Dilip R Panthee
A simple, low cost and safe method using homemade filter paper-based 96-well spin plates and homemade solutions was developed for high throughput plant DNA extraction to use in molecular marker analysis. A low cost and safe method was developed for high throughput extraction of plant DNA for molecular marker analysis. In this method, we describe a simple way to prepare 96-well spin plate using filter paper, a plant material product for DNA binding. Such filter paper-based spin plate can combine with homemade non-toxic buffers for high throughput extraction of plant DNA...
July 13, 2017: Planta
https://www.readbyqxmd.com/read/28706313/methyl-bromide-alternatives-for-control-of-root-knot-nematode-meloidogyne-spp-in-tomato-production-in-florida
#12
Johan Desaeger, Donald W Dickson, S J Locascio
The following work was initiated to determine the scope of application methodology and fumigant combinations for increasing efficacy of 1,3-dichloropropene (1,3-D) and metam sodium for management of root-knot nematodes (Meloidogyne spp.) in Florida. A series of five experiments were set up during spring and fall seasons to evaluate the potential of different fumigants, alone or in combination, in polyethylene film tomato production. The most promising chemical alternatives to methyl bromide, in terms of root-knot nematode management, were the combinations 1,3-D-chloropicrin, chloropicrin-proprietary solvent ,and 1,3-D-metam sodium...
June 2017: Journal of Nematology
https://www.readbyqxmd.com/read/28703352/atpds-over-expression-in-tomato-exposing-unique-patterns-of-carotenoid-self-regulation-and-an-alternative-strategy-for-the-enhancement-of-fruit-carotenoid-content
#13
Ryan P McQuinn, Breanna Wong, James J Giovannoni
The regulation of plant carotenogenesis is an active research area for both biological discovery and practical implementation. In tomato (Solanum lycopersicum) we demonstrate additional bottlenecks exist in the poly-cis-transformation of phytoene to lycopene in the context of ripening-induced PSY1 expression and activity, and reveal phytoene desaturase (PDS), as a target for manipulation toward elevated lycopene content in maturing tomato fruit. Over-expression of Arabidopsis PDS, AtPDS, elevated PDS transcript abundance in all aerial tissues resulting in both altered carotenoid accumulation and associated pathway gene expression in a tissue-specific manner...
July 13, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28703028/the-sal-pap-chloroplast-retrograde-pathway-contributes-to-plant-immunity-by-regulating-glucosinolate-pathway-and-phytohormone-signaling
#14
Yasuhiro Ishiga, Mutsumi Watanabe, Takako Ishiga, Takayuki Tohge, Takakazu Matsuura, Yoko Ikeda, Rainer Hofgen, Alisdair R Fernie, Kirankumar S Mysore
Chloroplasts have a crucial role in plant immunity against pathogens. Increasing evidence suggests that phytopathogens target chloroplast homeostasis as a pathogenicity mechanism. In order to regulate the performance of chloroplasts under stress conditions, chloroplasts produce retrograde signals to alter nuclear gene expression. Many signals for the chloroplast retrograde pathway have been identified including chlorophyll intermediates, reactive oxygen species (ROS), and metabolic retrograde signals. Although there is reasonably a good understanding of chloroplast retrograde signaling in plant immunity, some signals are not well understood...
July 13, 2017: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/28702937/genetic-engineering-strategies-for-biotic-and-abiotic-stress-tolerance-and-quality-enhancement-in-horticultural-crops-a-comprehensive-review
#15
REVIEW
Nehanjali Parmar, Kunwar Harendra Singh, Deepika Sharma, Lal Singh, Pankaj Kumar, J Nanjundan, Yasin Jeshima Khan, Devendra Kumar Chauhan, Ajay Kumar Thakur
Genetic engineering technique offers myriads of applications in improvement of horticultural crops for biotic and abiotic stress tolerance, and produce quality enhancement. During last two decades, a large number of transgenic horticultural crops has been developed and more are underway. A number of genes including natural and synthetic Cry genes, protease inhibitors, trypsin inhibitors and cystatin genes have been used to incorporate insect and nematode resistance. For providing protection against fungal and bacterial diseases, various genes like chitinase, glucanase, osmotin, defensin and pathogenesis-related genes are being transferred to many horticultural crops world over...
August 2017: 3 Biotech
https://www.readbyqxmd.com/read/28701351/characterization-of-trichome-expressed-bahds-in-petunia-reveals-distinct-acylsugar-assembly-mechanisms
#16
Satya Swathi Nadakuduti, Joseph B Uebler, Xiaoxiao Liu, Arthur Daniel Jones, Cornelius S Barry
Acylsugars are synthesized in the glandular trichomes of the Solanaceae family and are implicated in protection against abiotic and biotic stress. Acylsugars are comprised of either sucrose or glucose esterified with varying numbers of acyl chains of differing length. In tomato (Solanum lycopersicum), acylsugar assembly requires four acylsugar acyltransferases (ASATs), of the BAHD super family. Tomato ASATs catalyze the sequential esterification of acyl-CoA thioesters to the R4, R3, R3', and R2 position of sucrose, yielding a tetra-acylsucrose...
July 12, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28700608/the-ecf-sigma-factor-pspto_1043-in-pseudomonas-syringae-pv-tomato-dc3000-is-induced-by-oxidative-stress-and-regulates-genes-involved-in-oxidative-stress-response
#17
Bronwyn G Butcher, Zhongmeng Bao, Janet Wilson, Paul Stodghill, Bryan Swingle, Melanie Filiatrault, David Schneider, Samuel Cartinhour
The bacterial plant pathogen Pseudomonas syringae adapts to changes in the environment by modifying its gene expression profile. In many cases, the response is mediated by the activation of extracytoplasmic function (ECF) sigma factors that direct RNA polymerase to transcribe specific sets of genes. In this study we focus on PSPTO_1043, one of ten ECF sigma factors in P. syringae pv. tomato DC3000 (DC3000). PSPTO_1043, together with PSPTO_1042, encode an RpoERsp/ChrR-like sigma/anti-sigma factor pair. Although this gene pair is unique to the P...
2017: PloS One
https://www.readbyqxmd.com/read/28698610/tomatoes-protect-against-development-of-uv-induced-keratinocyte-carcinoma-via-metabolomic-alterations
#18
Jessica L Cooperstone, Kathleen L Tober, Ken M Riedl, Matthew D Teegarden, Morgan J Cichon, David M Francis, Steven J Schwartz, Tatiana M Oberyszyn
Prolonged tomato consumption can mitigate ultraviolet (UV) light induced sunburn via unknown mechanisms. Dietary carotenoids distributed to skin are hypothesized to protect skin against UV-induced damage, although other phytochemicals may play a role. We hypothesize that tomato consumption would protect against skin cancer. SKH-1 hairless and immunocompetent mice (n = 180) were fed AIN-93G or AIN-93G + 10% tangerine or red tomato powder for 35 weeks. From weeks 11-20, mice (n = 120) were exposed to 2240 J/m(2) UV-B light, 3x/week, and tumors were tracked weekly...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28696275/a-lectin-receptor-like-kinase-mediates-pattern-triggered-salicylic-acid-signaling
#19
Xuming Luo, Ning Xu, Junkai Huang, Feng Gao, Huasong Zou, Marie Boudsocq, Gitta Laurel Coaker, Jun Liu
Plant surface-localized pathogen recognition receptors (PRRs) perceive conserved microbial features, termed pathogen-associated molecular patterns (PAMPs), resulting in disease resistance. PAMP perception leads to calcium influx, mitogen-activated protein kinase (MAPK) activation, a burst of reactive oxygen species (ROS) mediated by RbohD, accumulation of the defense hormone salicylic acid (SA) and callose deposition. Lectin receptor-like kinases (LecRKs) belong to a specific PRR family and are important players in plant innate immunity...
July 10, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28695314/bacterial-production-and-reconstitution-in-proteoliposomes-of-solanum-lycopersicum-cat2-a-transporter-of-basic-amino-acids-and-organic-cations
#20
Teresa Maria Rosaria Regina, Michele Galluccio, Mariafrancesca Scalise, Lorena Pochini, Cesare Indiveri
The vacuolar SlCAT2 was cloned, over-produced in E. coli and reconstituted in proteoliposomes. Arg, Ornithine and Lys were identified as substrates. Unexpectedly, also the organic cations Tetraethylammonium and Acetylcholine were transported indicating involvement of SlCAT2 in signaling. In land plants several transporters are involved in ion and metabolite flux across membranes of cells or intracellular organelles. The vacuolar amino acid transporter CAT2 from Solanum lycopersicum was investigated in this work...
July 10, 2017: Plant Molecular Biology
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