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https://www.readbyqxmd.com/read/29778014/expression-of-grape-acs1-in-tomato-decreases-ethylene-and-alters-the-balance-between-auxin-and-ethylene-during-shoot-and-root-formation
#1
Xia Ye, Mengmeng Fu, Yu Liu, Dongliang An, Xianbo Zheng, Bin Tan, Jidong Li, Jun Cheng, Wei Wang, Jiancan Feng
Ethylene plays an important role in the grape rachis, where its production can be 10 times higher than in the berry. VvACS1 is the only rachis-specific ACC synthase (ACS) gene, and its expression is coincident with ethylene production in the rachis of Vitis vinifera 'Thompson seedless'. VvACS1 was cloned and ectopically expressed in tomato (Solanum lycopersicum 'Moneymaker'). Lateral buds were increased in two- or four-week-old 35s∷VvACS1 transgenic tomato plants after transplanting. Compared with wild-type (WT) plants, the transgenic tomato plants showed higher expression of the VvACS1 gene in the flowers, leaves, rachis, and fruits...
May 4, 2018: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29776336/phylogenomic-analysis-of-apoidea-sheds-new-light-on-the-sister-group-of-bees
#2
Manuela Sann, Oliver Niehuis, Ralph S Peters, Christoph Mayer, Alexey Kozlov, Lars Podsiadlowski, Sarah Bank, Karen Meusemann, Bernhard Misof, Christoph Bleidorn, Michael Ohl
BACKGROUND: Apoid wasps and bees (Apoidea) are an ecologically and morphologically diverse group of Hymenoptera, with some species of bees having evolved eusocial societies. Major problems for our understanding of the evolutionary history of Apoidea have been the difficulty to trace the phylogenetic origin and to reliably estimate the geological age of bees. To address these issues, we compiled a comprehensive phylogenomic dataset by simultaneously analyzing target DNA enrichment and transcriptomic sequence data, comprising 195 single-copy protein-coding genes and covering all major lineages of apoid wasps and bee families...
May 18, 2018: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/29774039/a-membrane-bound-nac-like-transcription-factor-osntl5-represses-the-flowering-in-oryza-sativa
#3
Siyi Guo, Shaojun Dai, Prashant K Singh, Hongyan Wang, Yanan Wang, Jeanie L H Tan, Wanyi Wee, Toshiro Ito
In spite of short-day (SD) nature, rice ( Oryza sativa ) shares a conserved photoperiodic network for flowering control with long-day plants like Arabidopsis thaliana. Flowering or heading is an important agronomic trait in rice. NAC transcription factors (TFs) are well-conserved and one of the largest families of plant TFs. However, their function in flowering or heading time is not well-known yet. A preferential expression of a membrane-bound NAC-like TF OsNTL5 in developing leaves and panicles of rice indicated to us its putative role in flowering...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774038/altered-expression-of-the-malate-permeable-anion-channel-osalmt4-reduces-the-growth-of-rice-under-low-radiance
#4
Jie Liu, Muyun Xu, Gonzalo M Estavillo, Emmanuel Delhaize, Rosemary G White, Meixue Zhou, Peter R Ryan
We examined the function of OsALMT4 in rice ( Oryza sativa L.) which is a member of the aluminum-activated malate transporter family. Previous studies showed that OsALMT4 localizes to the plasma membrane and that expression in transgenic rice lines results in a constitutive release of malate from the roots. Here, we show that OsALMT4 is expressed widely in roots, shoots, flowers, and grain but not guard cells. Expression was also affected by ionic and osmotic stress, light and to the hormones ABA, IAA, and salicylic acid...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29773848/identification-and-tissue-distribution-of-chemosensory-protein-and-odorant-binding-protein-genes-in-tropidothorax-elegans-distant-hemiptera-lygaeidae
#5
Yue-Qin Song, Hui-Zhong Sun, Jun Du
Tropidothorax elegans Distant (Hemiptera: Lygaeidae) is an insect pest that inflicts damage to vegetables and flowering plants across China. The olfactory system regulates insect behavior, such as feeding, mating, oviposition and predator avoidance. Odorant-binding proteins (OBPs) and the chemosensory proteins (CSPs) are two groups of small soluble proteins that initiate olfactory signal transduction in insects. In this study, we generated antennal transcriptomes of male and female T. elegans, and identified 19 putative OBP (14 classic OBPs and five plus-C OBPs) and seven CSP genes...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29772115/phenolic-profile-of-artemisia-alba-turra
#6
Antoaneta Trendafilova, Milka Todorova, Victoria Genova, Samuel Peter, Evelyn Wolfram, Kalina Danova, Luba Evstatieva
The aim of this study was to evaluate flower and leaf methanol extracts of A. alba Turra for their total phenolic and flavonoid contents, antioxidant capacity and to investigate their phenolic composition. The flower extract was richer in total phenolics and flavonoids and possessed higher antioxidant activity through DPPH and ABTS assays. The UHPLC-PDA-MS analysis of the flower and leaf methanol extracts revealed similar phenolic profile and allowed identification of 31 phenolic compounds (flavonoids, coumarins and phenolic acids) by comparison with the respective reference compounds or tentatively characterized by their chromatographic behavior, UV patterns and MS fragmentations...
May 17, 2018: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/29772090/lcm-seq-reveals-the-crucial-role-of-lssoc1-in-heat-promoted-bolting-of-lettuce-lactuca-sativa-l
#7
Zijing Chen, Wensheng Zhao, Danfeng Ge, Yingyan Han, Kang Ning, Chen Luo, Shenglin Wang, Renyi Liu, Xiaolan Zhang, Qian Wang
Lettuce (Lactuca sativa L.) is one of the most economically important vegetables. The floral transition in lettuce is accelerated under high temperatures, which can significantly decrease yields. However, the molecular mechanism underlying the floral tranition in lettuce is poorly known. Using laser capture microdissection coupled with RNA sequencing, we isolated shoot apical meristem cells from the bolting-sensitive lettuce line S39 at four critical stages of development. Subsequently, we screened specifically for the flowering-related gene LsSOC1 during the floral transition through comparative transcriptomic analysis...
May 17, 2018: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29771352/de-novo-biosynthesis-of-anthocyanins-in-saccharomyces-cerevisiae
#8
Michael Eichenberger, Anders Hansson, David Fischer, Lara Dürr, Michael Naesby
Anthocyanins (ACNs) are plant secondary metabolites responsible for most of the red, purple and blue colors of flowers, fruits and vegetables. They are increasingly used in the food and beverage industry as natural alternative to artificial colorants. Production of these compounds by fermentation of microorganisms would provide an attractive alternative. In this study, Saccharomyces cerevisiae was engineered for de novo production of the three basic anthocyanins, as well as the three main trans-flavan-3-ols...
June 1, 2018: FEMS Yeast Research
https://www.readbyqxmd.com/read/29768252/chemical-composition-and-antifungal-activity-of-essential-oils-from-four-asteraceae-plants-grown-in-egypt
#9
Rose Vanessa Bandeira Reidel, Simona Nardoni, Francesca Mancianti, Claudia Anedda, Abd El-Nasser G El Gendy, Elsayed A Omer, Luisa Pistelli
The objective of the present paper was the assessment of the chemical composition of the essential oils from four Asteraceae species with a considerable food, medicinal, and agricultural value, collected in Egypt, together with their in vitro inhibitory activity against molds and yeasts. The essential oil of Launaea cornuta flowers was also evaluated for the first time, but because of its very low yield (<0.01%), no antifungal test was performed.
May 16, 2018: Zeitschrift Für Naturforschung. C, A Journal of Biosciences
https://www.readbyqxmd.com/read/29768221/optimised-synthesis-of-zno-nano-fertiliser-through-green-chemistry-boosted-growth-dynamics-of-economically-important-l-esculentum
#10
Nyla Jabeen, Qaisar Maqbool, Tahira Bibi, Mudassar Nazar, Syed Z Hussain, Talib Hussain, Tariq Jan, Ishaq Ahmad, Malik Maaza, Sadaf Anwaar
Mounting-up economic losses to annual crops yield due to micronutrient deficiency, fertiliser inefficiency and increasing microbial invasions (e.g. Xanthomonas cempestri attack on tomatoes) are needed to be solved via nano-biotechnology. So keeping this in view, the authors' current study presents the new horizon in the field of nano-fertiliser with highly nutritive and preservative effect of green fabricated zinc oxide-nanostructures (ZnO-NSs) during Lycopersicum esculentum (tomato) growth dynamics. ZnO-NS prepared via green chemistry possesses highly homogenous crystalline structures well-characterised through ultraviolet and visible spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscope...
June 2018: IET Nanobiotechnology
https://www.readbyqxmd.com/read/29767798/genome-wide-association-of-yield-traits-in-a-nested-association-mapping-population-of-barley-reveals-new-gene-diversity-for-future-breeding
#11
Rajiv Sharma, Fulvia Draicchio, Hazel Bull, Paul Herzig, Andreas Maurer, Klaus Pillen, William T B Thomas, Andrew J Flavell
To explore wild barley as a source of useful alleles for yield improvement in breeding we have carried out a genome-wide association scan using the nested association mapping population HEB-25, which contains 25 diverse exotic barley genomes superimposed on a ca 70% genetic background of cultivated barley. 1420 HEB-25 lines were trialled for nine yield-related grain traits for two years in Germany and Scotland, with varying N-fertilizer application. The phenotypic data were related to genotype scores for 5,398 gene-based SNP markers...
May 15, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29767797/hydraulic-processes-in-roots-and-the-rhizosphere-pertinent-to-increasing-yield-of-water-limited-grain-crops-a-critical-review
#12
Mutez Ali Ahmed, John Passioura, Andrea Carminati
To a first-order approximation, the yield of a water-limited grain crop depends (1) on how much water is available to the crop and (2) on how crop water use is partitioned during the growing season. The latter determines the harvest index of the crop, that is, the proportion of the crop's above ground biomass that is converted into grain, which is typically optimal if about 30% of the seasonal available water supply is used during flowering and grain-filling.Here we review the role of roots in extracting water from the soil both in the amount and in timing that may lead to maximal grain yield, and the various mechanisms underlying this activity...
May 15, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29767744/genome-wide-association-provides-novel-genomic-loci-controlling-rice-grain-yield-and-its-component-traits-under-water-deficit-stress-during-the-reproductive-stage
#13
Niteen N Kadam, Paul C Struik, M C Rebolledo, Xinyou Yin, S V Krishna Jagadish
A diversity panel comprising of 296 indica rice genotypes was phenotyped under non-stress and water-deficit stress conditions during the reproductive stage in 2013 and 2014 dry seasons at IRRI, Philippines. We investigated the genotypic variability for grain yield, yield components and related traits and conducted genome-wide association studies (GWAS) using high-density 45K single nucleotide polymorphisms. We detected 38 loci in 2013 and 64 loci in 2014 for non-stress conditions and 69 loci in 2013 and 55 loci in 2014 for water-deficit stress...
May 15, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29765566/efficacy-of-combination-of-viola-odorata-rosa-damascena-and-coriandrum-sativum-in-prevention-of-migraine-attacks-a-randomized-double-blind-placebo-controlled-clinical-trial
#14
Mohadese Kamali, Rostam Seifadini, Hoda Kamali, Mitra Mehrabani, Yunes Jahani, Haleh Tajadini
Background: Migraine is the second most common type of headache after tension headaches. In Iranian traditional medicine several herbal drugs are used for the treatment of headache. Including, a product of Iranian traditional medicine, a combination of Viola odorata L. flowers, Rosa damascena L. flowers and Coriandrum sativum L. fruits. Objective: To determine the effectiveness of a combination of Viola odorata flowers, Rosa damascene flowers and Coriandrum sativum fruits on severity, duration and frequency of migraine headaches...
March 2018: Electronic Physician
https://www.readbyqxmd.com/read/29765382/the-plant-phenology-ontology-a-new-informatics-resource-for-large-scale-integration-of-plant-phenology-data
#15
Brian J Stucky, Rob Guralnick, John Deck, Ellen G Denny, Kjell Bolmgren, Ramona Walls
Plant phenology - the timing of plant life-cycle events, such as flowering or leafing out - plays a fundamental role in the functioning of terrestrial ecosystems, including human agricultural systems. Because plant phenology is often linked with climatic variables, there is widespread interest in developing a deeper understanding of global plant phenology patterns and trends. Although phenology data from around the world are currently available, truly global analyses of plant phenology have so far been difficult because the organizations producing large-scale phenology data are using non-standardized terminologies and metrics during data collection and data processing...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29764984/parallel-evolution-of-common-allelic-variants-confers-flowering-diversity-in-capsella-rubella
#16
Li Yang, Hui-Na Wang, Xing-Hui Hou, Yu-Pan Zou, Ting-Shen Han, Xiao-Min Niu, Jie Zhang, Zhong Zhao, Marco Todesco, Sureshkumar Balasubramanian, Ya-Long Guo
Flowering time is an adaptive life history trait. Capsella rubella, a close relative of Arabidopsis thaliana and a young species, displays extensive variation for flowering time but low standing genetic variation due to an extreme bottleneck event, providing an excellent opportunity to understand how phenotypic diversity can occur with a limited initial gene pool. Here, we demonstrate that common allelic variation and parallel evolution at the FLC locus confer variation in flowering time in C. rubella. We show that two overlapping deletions in the 5' UTR region of C...
May 15, 2018: Plant Cell
https://www.readbyqxmd.com/read/29761290/isolation-and-functional-characterization-of-a-floral-repressor-bcflc2-from-pak-choi-brassica-rapa-ssp-chinensis
#17
Feiyi Huang, Tongkun Liu, Jin Wang, Xilin Hou
BcFLC2 functioned as a repressor of flowering by directly regulating BcTEM1, BcMAF2, BcSOC1 and BcSPL15 in Pak-choi. FLOWERING LOCUS C (FLC) plays an important role in regulating flowering time. Here, we functionally described an FLC homologous gene, BcFLC2, that negatively regulated flowering in Pak-choi (Brassica rapa ssp. chinensis). The sequence comparison to Arabidopsis FLC showed that BcFLC2 also had a MADS-box domain at the N terminus. BcFLC2 was highly expressed in the leaves, roots, stems and stamens, and its expression was repressed by vernalization in Pak-choi...
May 14, 2018: Planta
https://www.readbyqxmd.com/read/29760330/variations-in-volatile-oil-yield-and-composition-of-xin-yi-magnolia-biondii-pamp-flower-buds-at-different-growth-stages
#18
Mingli Hu, Mei Bai, Wei Ye, Yaling Wang, Hong Wu
Dried flower buds of Magnolia biondii Pamp. are the main ingredient in "Xin-yi" in China, and the volatile oils of M. biondii flower buds are the principal medicinal component. Gas chromatographymass spectrometry (GC-MS) and microscopic techniques were employed to detect the volatile yields of M. biondii flowers at various growth stages. The volatile oil yields of M. biondii flowers differed significantly at different growth stages and were closely related to flower dry weight, oil cell density and degree of oil accumulation...
May 15, 2018: Journal of Oleo Science
https://www.readbyqxmd.com/read/29756225/pollen-wall-degradation-in-the-brassicaceae-permits-cell-emergence-after-pollination
#19
Anna F Edlund, Katrina Olsen, Christian Mendoza, Jing Wang, Trudyann Buckley, Mai Nguyen, Brooke Callahan, Heather A Owen
PREMISE OF THE STUDY: Despite attempts to degrade the sporopollenin in pollen walls, this material has withstood a hundred years of experimental treatments and thousands of years of environmental attack in insects and soil. We present evidence that sporopollenin, nonetheless, locally degrades only minutes after pollination in Arabidopsis thaliana flowers, and describe here a two-part pollen germination mechanism in A. thaliana involving both chemical weakening of the exine wall and swelling of the underlying intine...
August 2017: American Journal of Botany
https://www.readbyqxmd.com/read/29755489/optimizing-production-in-the-new-generation-of-apricot-cultivars-self-incompatibility-s-rnase-allele-identification-and-incompatibility-group-assignment
#20
Sara Herrera, Jorge Lora, José I Hormaza, Maria Herrero, Javier Rodrigo
Apricot ( Prunus armeniaca L.) is a species of the Rosaceae that was originated in Central Asia, from where it entered Europe through Armenia. The release of an increasing number of new cultivars from different breeding programs is resulting in an important renewal of plant material worldwide. Although most traditional apricot cultivars in Europe are self-compatible, the use of self-incompatible cultivars as parental genotypes for breeding purposes is leading to the introduction of a number of new cultivars that behave as self-incompatible...
2018: Frontiers in Plant Science
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