keyword
MENU ▼
Read by QxMD icon Read
search

Tomato

keyword
https://www.readbyqxmd.com/read/29470644/two-genes-encoding-gh10-xylanases-are-essential-for-the-virulence-of-the-oomycete-plant-pathogen-phytophthora-parasitica
#1
Ming-Wei Lai, Ruey-Fen Liou
Plant cell walls are pivotal battlegrounds between microbial pathogens and their hosts. To penetrate the cell wall and thereby to facilitate infection, microbial pathogens are equipped with a wide array of cell wall-degrading enzymes to depolymerize the polysaccharides in the cell wall. However, many of these enzymes and their role in the pathogenesis of microbial pathogens are not characterized, especially those from Oomycetes. In this study, we analyzed the function of four putative endo-beta-1,4-xylanase-encoding genes (ppxyn1-ppxyn4) from Phytophthora parasitica, an oomycete plant pathogen known to cause severe disease in a wide variety of plant species...
February 22, 2018: Current Genetics
https://www.readbyqxmd.com/read/29467500/a-tomato-mads-box-protein-slcmb1-regulates-ethylene-biosynthesis-and-carotenoid-accumulation-during-fruit-ripening
#2
Jianling Zhang, Zongli Hu, Qiyuan Yao, Xuhu Guo, Vanluc Nguyen, Fenfen Li, Guoping Chen
The MADS-box transcription factors play essential roles in many physiological and biochemical processes of plants, especially in fruit ripening. Here, a tomato MADS-box gene, SlCMB1, was isolated. SlCMB1 expression declined with the fruit ripening from immature green to B + 7 (7 days after Breaker) fruits in the wild type (WT) and was lower in Nr and rin mutants fruits. Tomato plants with reduced SlCMB1 mRNA displayed delayed fruit ripening, reduced ethylene production and carotenoid accumulation. The ethylene production in SlCMB1-RNAi fruits decreased by approximately 50% as compared to WT...
February 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29465773/chemical-priming-of-immunity-without-costs-to-plant-growth
#3
Will Buswell, Roland E Schwarzenbacher, Estrella Luna, Matthew Sellwood, Beining Chen, Victor Flors, Pierre Pétriacq, Jurriaan Ton
β-Aminobutyric acid (BABA) induces broad-spectrum disease resistance, but also represses plant growth, which has limited its exploitation in crop protection. BABA perception relies on binding to the aspartyl-tRNA synthetase (AspRS) IBI1, which primes the enzyme for secondary defense activity. This study aimed to identify structural BABA analogues that induce resistance without stunting plant growth. Using site-directed mutagenesis, we demonstrate that the (l)-aspartic acid-binding domain of IBI1 is critical for BABA perception...
February 21, 2018: New Phytologist
https://www.readbyqxmd.com/read/29464722/phelipanche-aegyptiaca-parasitism-impairs-salinity-tolerance-in-young-leaves-of-tomato
#4
Amnon Cochavi, Jhonthan Ephrath, Hanan Eizenberg, Shimon Rachmilevitch
The parasite Phelipanche aegyptiaca infests tomato, a crop plant that is commonly cultivated in semi-arid environments, where tomato may be subject to salt stress. Since the relationship between the two stresses - salinity and parasitism - has been poorly investigated in tomato, the effects of P. aegyptiaca parasitism on tomato growing under moderate salinity were examined. Tomatoes were grown with regular or saline water irrigation (3 and 45 mM Cl- , respectively) in soils infested with P. aegyptiaca. The infested plants accumulated higher levels of sodium and chloride ions in the roots, shoots and leaves (old and young) under both salinity levels vs non-infected plants...
February 21, 2018: Physiologia Plantarum
https://www.readbyqxmd.com/read/29463773/the-citrus-transcription-factor-csmads6-modulates-carotenoid-metabolism-by-directly-regulating-carotenogenic-genes
#5
Su Wen Lu, Yin Zhang, Kaijie Zhu, Wei Yang, Jun Li Ye, Lijun Chai, Qiang Xu, Xiuxin Deng
Although remarkable progress has been made towards understanding carotenoid biosynthesis, the mechanisms that regulate the transcription of carotenogenic genes remain poorly understood. Lycopene β-cyclases (LCYb) are critical enzymes located at the branch point of the carotenoid biosynthetic pathway. Here, we used the promoter sequence of LCYb1 as bait in a yeast one-hybrid screen for promoter-binding proteins from sweet orange (Citrus sinensis). This screen identified a MADS transcription factor, CsMADS6, that was coordinately expressed with fruit development and coloration...
February 20, 2018: Plant Physiology
https://www.readbyqxmd.com/read/29460676/pattern-triggered-immunity-alters-the-transcriptional-regulation-of-virulence-associated-genes-and-induces-the-sulfur-starvation-response-in-pseudomonas-syringae-pv-tomato-dc3000
#6
Amelia H Lovelace, Amy Smith, Brian H Kvitko
Pattern triggered Immunity (PTI) can confer broad defense against diverse microbes and pathogens with disparate lifestyles through the detection of microbial extracellular signatures by surface exposed pattern recognition receptors. However, unlike recognition of pathogen effectors by cytosolic resistance proteins, PTI is typically not associated with a host cell programmed cell death response. Although host PTI signaling has been extensively studied, the mechanisms by which it restricts microbial colonization is poorly understood...
February 20, 2018: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29459878/-bemisia-tabaci-med-population-density-as-affected-by-rootstock-modified-leaf-anatomy-and-amino-acid-profiles-in-hydroponically-grown-tomato
#7
Katja Žanić, Gvozden Dumičić, Marija Mandušić, Gabriela Vuletin Selak, Ivana Bočina, Branimir Urlić, Ivica Ljubenkov, Viljemka Bučević Popović, Smiljana Goreta Ban
Bemisia tabaci is one of the most devastating pests in tomato greenhouse production. Insecticide resistance management for B. tabaci requires a novel approach that maximizes non-chemical methods for pest control. The aim of this study was to test the effects of rootstocks on B. tabaci populations in hydroponically grown tomato plants. In order to contribute to the better understanding of the mechanisms defining the attractiveness of plant to the aerial pest, the effects of rootstocks on leaf anatomy and the amino acid composition of phloem sap were assessed...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29459728/silencing-slmed18-tomato-mediator-subunit-18-gene-restricts-internode-elongation-and-leaf-expansion
#8
Yunshu Wang, Zongli Hu, Jianling Zhang, XiaoHui Yu, Jun-E Guo, Honglian Liang, Changguang Liao, Guoping Chen
Mediator complex, a conserved multi-protein, is necessary for controlling RNA polymerase II (Pol II) transcription in eukaryotes. Given little is known about them in tomato, a tomato Mediator subunit 18 gene was isolated and named SlMED18. To further explore the function of SlMED18, the transgenic tomato plants targeting SlMED18 by RNAi-mediated gene silencing were generated. The SlMED18-RNAi lines exhibited multiple developmental defects, including smaller size and slower growth rate of plant and significantly smaller compound leaves...
February 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29459726/the-systemin-receptor-syr1-enhances-resistance-of-tomato-against-herbivorous-insects
#9
Lei Wang, Elias Einig, Marilia Almeida-Trapp, Markus Albert, Judith Fliegmann, Axel Mithöfer, Hubert Kalbacher, Georg Felix
The discovery in tomato of systemin, the first plant peptide hormone1,2 , was a fundamental change for the concept of plant hormones. Numerous other peptides have since been shown to play regulatory roles in many aspects of the plant life, including growth, development, fertilization and interactions with symbiotic organisms3-6 . Systemin, an 18 amino acid peptide derived from a larger precursor protein7 , was proposed to act as the spreading signal that triggers systemic defence responses observed in plants after wounding or attack by herbivores1,7,8 ...
February 19, 2018: Nature Plants
https://www.readbyqxmd.com/read/29457297/the-impact-of-bacteriophages-on-phyllosphere-bacterial-abundance-and-composition
#10
Norma M Morella, Annika L Gomez, Grant Wang, Michelle S Leung, Britt Koskella
Interactions between bacteria and bacteriophage viruses (phages) are known to influence pathogen growth and virulence, microbial diversity, and even biogeochemical cycling. Lytic phages in particular infect and lyse their host cells, and can therefore have significant effects on cell densities as well as competitive dynamics within microbial communities. Despite the known impacts of lytic phages on the ecology and evolution of bacteria in free-living communities, little is known about the role of lytic phages in host-associated microbiomes...
February 19, 2018: Molecular Ecology
https://www.readbyqxmd.com/read/29455459/first-draft-genome-of-an-iconic-clownfish-species-amphiprion-frenatus
#11
Anna Marcionetti, Victor Rossier, Joris A M Bertrand, Glenn Litsios, Nicolas Salamin
Clownfishes (or anemonefishes) form an iconic group of coral reef fishes, principally known for their mutualistic interaction with sea anemones. They are characterized by particular life-history traits, such as a complex social structure and mating system involving sequential hermaphroditism, coupled with an exceptionally long lifespan. Additionally, clownfishes are considered to be one of the rare group to have experienced an adaptive radiation in the marine environment. Here, we assembled and annotated the first genome of a clownfish species, the tomato clownfish (Amphiprion frenatus)...
February 17, 2018: Molecular Ecology Resources
https://www.readbyqxmd.com/read/29453663/the-rice-fruit-weight-2-2-like-gene-family-member-osfwl4-is-involved-in-the-translocation-of-cadmium-from-roots-to-shoots
#12
Wentao Xiong, Peng Wang, Tianze Yan, Baobao Cao, Jun Xu, Defang Liu, Meizhong Luo
Heterogeneous expression of the rice genes "fruit-weight 2.2-like" (OsFWL) affects Cd resistance in yeast, and OsFWL4 mediates the translocation of Cd from roots to shoots. Cadmium (Cd) induces chronic and toxic effects in humans. In a previous study (Xu et al. in Planta 238:643-655, 2013), we cloned the rice genes, designated OsFWL1-8, homologous to the tomato fruit-weight 2.2. Here, we show that expression of genes OsFWL3-7 in yeast confers resistance to Cd. The Cd contents of OsFWL3-, -4-, -6- and -7-transformed Cd(II)-sensitive yeast mutant ycf1 cells were strongly decreased compared with those of empty vector, with the strongest resistance to Cd observed in cells expressing OsFWL4...
February 7, 2018: Planta
https://www.readbyqxmd.com/read/29450902/identification-and-expression-profiles-of-novel-odorant-binding-proteins-and-functional-analysis-of-obp99a-in-bactrocera-dorsalis
#13
Jing Zhang, Deye Luo, Peng Wu, Haozhe Li, Hongyu Zhang, Weiwei Zheng
Odorant-binding proteins (OBPs) in insects are essential for mating and oviposition host selection. How these OBPs respond to different hosts at the mRNA level and their effects on behavior remain poorly characterized. The oriental fruit fly Bactrocera dorsalis is a highly invasive agricultural pest with an extremely broad host range and high fecundity. Based on our previously constructed B. dorsalis transcriptome, six OBPs that were differentially expressed during three different physiological adult stages were identified...
February 16, 2018: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/29450115/plipastatin-a1-produced-by-a-marine-sediment-derived-bacillus-amyloliquefaciens-sh-b74-contributes-to-the-control-of-gray-mold-disease-in-tomato
#14
Zongwang Ma, Jiangchun Hu
Certain Bacillus species have the capacity to produce cyclic lipopeptides and these lipopeptides are promising determinants contributing to the biocontrol of plant diseases. In the current study, a cyclic lipopeptide plipastatin A1 was isolated from the fermentation broth of a marine sediment-derived Bacillus amyloliquefaciens SH-B74 by the combination of solid-phase extraction and reversed-phase high-performance liquid chromatography, and its structure was identified by tandem mass spectrometry, high-resolution electro-spray ionization mass spectrometry, and gas chromatography-mass spectrometry together with nuclear magnetic resonance analysis...
February 2018: 3 Biotech
https://www.readbyqxmd.com/read/29448924/h-2-o-2-mediates-ala-induced-glutathione-and-ascorbate-accumulation-in-the-perception-and-resistance-to-oxidative-stress-in-solanum-lycopersicum-at-low-temperatures
#15
Tao Liu, Xiaohui Hu, Jiao Zhang, Junheng Zhang, Qingjie Du, Jianming Li
BACKGROUND: Low temperature is a crucial factor influencing plant growth and development. The chlorophyll precursor, 5-aminolevulinic acid (ALA) is widely used to improve plant cold tolerance. However, the interaction between H 2 O 2 and cellular redox signaling involved in ALA-induced resistance to low temperature stress in plants remains largely unknown. Here, the roles of ALA in perceiving and regulating low temperature-induced oxidative stress in tomato plants, together with the roles of H 2 O 2 and cellular redox states, were characterized...
February 15, 2018: BMC Plant Biology
https://www.readbyqxmd.com/read/29448919/jasmonic-acid-facilitates-flower-opening-and-floral-organ-development-through-the-upregulated-expression-of-slmyb21-transcription-factor-in-tomato
#16
Tomoko Niwa, Takamasa Suzuki, Yumiko Takebayashi, Rie Ishiguro, Tetsuya Higashiyama, Hitoshi Sakakibara, Sumie Ishiguro
Plants coordinate the timing of flower opening with pollen and gynoecium maturation to achieve successful pollination. However, little is known about how the coordination is executed. We found that flower bud development was paused immediately before flower opening in a jasmonic acid (JA)-insensitive tomato mutant, jai1-1. Phytohormone measurement and RNA analysis in flower buds revealed that newly synthesised JA peaked at two days before flower opening and the expression of a transcription factor gene SlMYB21 delayed in jai1-1...
February 2018: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/29447272/reduced-translucency-and-the-addition-of-black-patterns-increase-the-catch-of-the-greenhouse-whitefly-trialeurodes-vaporariorum-on-yellow-sticky-traps
#17
Clare Sampson, Anca D Covaci, James G C Hamilton, Nayem Hassan, Shakir Al-Zaidi, William D J Kirk
The greenhouse whitefly Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae) is a pest of a wide range of vegetable and ornamental crops in greenhouses around the world. Yellow sticky traps are highly attractive to flying adults and so are frequently used to monitor the pest. Our aim was to test whether changes in trap translucency or the addition of printed black patterns could increase the catch on yellow sticky traps in greenhouses. Field trials were carried out in commercial crops of strawberry and tomato under glass over three years...
2018: PloS One
https://www.readbyqxmd.com/read/29446503/crispr-cas9-mediated-mutagenesis-of-lncrna1459-alters-tomato-fruit-ripening
#18
Ran Li, Daqi Fu, Benzhong Zhu, Yunbo Luo, Hongliang Zhu
With the development of high throughput sequencing, plenty of long non-coding RNAs (lncRNAs) have been discovered to play important roles in diverse biological processes. However, the biological functions of most plant lncRNAs are still unknown. Previously, we had discovered a tomato ripening-related lncRNA, lncRNA1459. Here, we cloned the full-length lncRNA1459, which obtained two transcript isoforms. In addition, lncRNA1459 exhibited specific location in the nucleus. Furthermore, in order to fully identify the function of lncRNA1459 in tomato ripening, loss-function mutants of lncRNA1459 were developed using clusterd regularly interspaced short palindromic repeats (CRISPR)/-associated protein 9 (Cas9)-induced genome editing technology...
February 15, 2018: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29445868/induction-of-systemic-resistance-in-tomato-against-botrytis-cinerea-by-n-decanoyl-homoserine-lactone-via-jasmonic-acid-signaling
#19
Zhangjian Hu, Shujun Shao, Chenfei Zheng, Zenghui Sun, Junying Shi, Jingquan Yu, Zhenyu Qi, Kai Shi
N-decanoyl-homoserine lactone activates plant systemic resistance against Botrytis cinerea in tomato plants, which is largely dependent on jasmonic acid biosynthesis and signal transduction pathways. Rhizosphere bacteria secrete N-acylated-homoserine lactones (AHLs), a type of specialized quorum-sensing signal molecule, to coordinate their population density during communication with their eukaryotic hosts. AHLs behave as low molecular weight ligands that are sensed by plants and promote the host's resistance against foliar pathogens...
February 14, 2018: Planta
https://www.readbyqxmd.com/read/29445121/tomato-auxin-response-factor-5-regulates-fruit-set-and-development-via-the-mediation-of-auxin-and-gibberellin-signaling
#20
Songyu Liu, Youwei Zhang, Qiushuo Feng, Li Qin, Changtian Pan, Anthony Tumbeh Lamin-Samu, Gang Lu
Auxin response factors (ARFs) encode transcriptional factors that function in the regulation of plant development processes. A tomato ARF gene, SlARF5, was observed to be expressed at high levels in emasculated ovaries but maintained low expression levels in pollinated ovaries. The amiRNA SlARF5 lines exhibited ovary growth and formed seedless fruits following emasculation. These parthenocarpic fruits developed fewer locular tissues, and the fruit size and weight were decreased in transgenic lines compared to those of wild-type fruits...
February 14, 2018: Scientific Reports
keyword
keyword
2307
1
2
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"