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Plant Science: An International Journal of Experimental Plant Biology

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https://www.readbyqxmd.com/read/28330566/the-mads-box-gene-slmbp11-regulates-plant-architecture-and-affects-reproductive-development-in-tomato-plants
#1
Xuhu Guo, Guoping Chen, Muhammad Naeem, Xiaohu Yu, Boyan Tang, Anzhou Li, Zongli Hu
MADS-domain proteins are important transcription factors that are involved in many biological processes of plants. In the present study, SlMBP11, a member of the AGL15 subfamily, was cloned in tomato plants (Solanum lycopersicon M.). SlMBP11 is ubiquitously expressed in all of the tissues we examined, whereas the SlMBP11 transcription levels were significantly higher in reproductive tissues than in vegetative tissues. Plants exhibiting increased SlMBP11 levels displayed reduced plant height, leaf size, and internode length as well as a loss of dominance in young seedlings, highly branched growth from each leaf axil, and increased number of nodes and leaves...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330565/phytohormone-profiling-in-relation-to-osmotic-adjustment-in-nacl-treated-plants-of-the-halophyte-tomato-wild-relative-species-solanum-chilense-comparatively-to-the-cultivated-glycophyte-solanum-lycopersicum
#2
Emna Gharbi, Juan-Pablo Martínez, Hela Benahmed, Imène Hichri, Petre I Dobrev, Václav Motyka, Muriel Quinet, Stanley Lutts
A holistic approach was used to investigate the hormonal profile in relation with osmotic adjustment under salinity in Solanum lycopersicum and its halophyte wild relative Solanum chilense. Plants were subjected to 125mM NaCl for 7days. Solanum chilense displayed a contrasting behaviour comparatively to S. lycopersicum, not only for mineral nutrition, but also regarding the modalities of osmotic adjustment and phytohormonal profiling. The extent of osmotic adjustment was higher in S. chilense than in S. lycopersicum...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330564/proteomic-analysis-of-stipe-explants-reveals-differentially-expressed-proteins-involved-in-early-direct-somatic-embryogenesis-of-the-tree-fern-cyathea-delgadii-sternb
#3
Lucyna Domżalska, Sylwia Kędracka-Krok, Urszula Jankowska, Małgorzata Grzyb, Mirosław Sobczak, Jan J Rybczyński, Anna Mikuła
Using cyto-morphological analysis of somatic embryogenesis (SE) in the tree fern Cyathea delgadii as a guide, we performed a comparative proteomic analysis in stipe explants undergoing direct SE. Plant material was cultured on hormone-free medium supplemented with 2% sucrose. Phenol extracted proteins were separated using two-dimensional gel electrophoresis (2-DE) and mass spectrometry was performed for protein identification. A total number of 114 differentially regulated proteins was identified during early SE, i...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330563/characterization-of-the-endosperm-starch-and-the-pleiotropic-effects-of-biosynthetic-enzymes-on-their-properties-in-novel-mutant-rice-lines-with-high-resistant-starch-and-amylose-content
#4
Yuuki Itoh, Naoko Crofts, Misato Abe, Yuko Hosaka, Naoko Fujita
Resistant starch (RS) is beneficial to human health. In order to reduce the current prevalence of diabetes and obesity, several transgenic and mutant crops containing high RS content are being developed. RS content of steamed rice with starch-branching enzyme (BE)IIb-deficient mutant endosperms is considerably high. To understand the mechanisms of RS synthesis and to increase RS content, we developed novel mutant rice lines by introducing the gene encoding starch synthase (SS)IIa and/or granule-bound starch synthase (GBSS)I from an indica rice cultivar into a japonica rice-based BEIIb-deficient mutant line, be2b...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330562/zinc-biofortification-improves-phytochemicals-and-amino-acidic-profile-in-brassica-oleracea-cv-bronco
#5
Yurena Barrameda-Medina, Begoña Blasco, Marco Lentini, Sergio Esposito, Nieves Baenas, Diego A Moreno, Juan M Ruiz
Zn deficiency is currently listed as a major risk factor for human health. Recently, a complimentary solution to mineral malnutrition termed 'biofortification' has been proposed. The aim of this study was to investigate the possible effects of a Zn-biofortification program on Zn levels, amino acidic profile and the phytochemicals content in an edible leafy vegetable, such as Brassica oleracea cv. Bronco. Our results indicate that supplementation of 80-100μM Zn is optimal for maintaining the normal growth of plants and to promote the major Zn concentration in the edible part of B...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330561/functional-characterization-of-a-novel-brassica-leafy-homolog-from-indian-mustard-expression-pattern-and-gain-of-function-studies
#6
Priyanka Dhakate, Shikha Tyagi, Anupama Singh, Anandita Singh
LEAFY plays a central role in regulation of flowering time and floral meristem identity in plants. Unfortunately, LFY function remains uncharacterized in agronomicaly important Brassicas. Herein, we illustrate fine-mapping of expression domains of LFY in 15 cultivars of 6 Brassica species and describe gain-of-function phenotypes in Arabidopsis and Brassica. We depict early flowering and altered fatty-acid composition in transgenic seed. The cDNA encoding BjuLFY (417aa) shared only 85% identity with reported homolog of B...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330560/an-event-of-alternative-splicing-affects-the-expression-of-the-ntrc-gene-encoding-nadph-thioredoxin-reductase-c-in-seed-plants
#7
Victoria A Nájera, María Cruz González, Juan Manuel Pérez-Ruiz, Francisco Javier Cejudo
The NTRC gene encodes a NADPH-dependent thioredoxin reductase with a joint thioredoxin domain, exclusive of photosynthetic organisms. An updated search shows that although most species harbor a single copy of the NTRC gene, two copies were identified in different species of the genus Solanum, Glycine max and the moss Physcomitrella patens. The phylogenetic analysis of NTRCs from different sources produced a tree with the major groups of photosynthetic organisms: cyanobacteria, algae and land plants, indicating the evolutionary success of the NTRC gene among photosynthetic eukaryotes...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330559/dge-seq-analysis-of-mur3-related-arabidopsis-mutants-provides-insight-into-how-dysfunctional-xyloglucan-affects-cell-elongation
#8
Zongchang Xu, Meng Wang, Dachuan Shi, Gongke Zhou, Tiantian Niu, Michael G Hahn, Malcolm A O'Neill, Yingzhen Kong
Our previous study of the Arabidopsis mur3-3 mutant and mutant plants in which the mur3-3 phenotypes are suppressed (xxt2mur3-3, xxt5mur3-3, xxt1xxt2mur3-3 and 35Spro:XLT2:mur3-3) showed that hypocotyl cell elongation is decreased in plants that synthesize galactose-deficient xyloglucan. To obtain genome-wide insight into the transcriptome changes and regulatory networks that may be involved in this decreased elongation, we performed digital gene expression analyses of the etiolated hypocotyls of wild type (WT), mur3-3 and the four suppressor lines...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330558/altered-expression-of-polyamine-transporters-reveals-a-role-for-spermidine-in-the-timing-of-flowering-and-other-developmental-response-pathways
#9
Sheaza Ahmed, Menaka Ariyaratne, Jigar Patel, Alexander E Howard, Andrea Kalinoski, Vipaporn Phuntumart, Paul F Morris
Changes in the levels of polyamines are correlated with the activation or repression of developmental response pathways, but the role of polyamine transporters in the regulation of polyamine homeostasis and thus indirectly gene expression, has not been previously addressed. Here we show that the A. thaliana and rice transporters AtPUT5 and OsPUT1 were localized to the ER, while the AtPUT2, AtPUT3, and OsPUT3 were localized to the chloroplast by transient expression in N. benthamiana. A. thaliana plants that were transformed with OsPUT1 under the control the PUT5 promoter were delayed in flowering by 16days...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330557/loss-of-anthocyanins-and-modification-of-the-anthocyanin-profiles-in-grape-berries-of-malbec-and-bonarda-grown-under-high-temperature-conditions
#10
Inés de Rosas, María Teresa Ponce, Emiliano Malovini, Leonor Deis, Bruno Cavagnaro, Pablo Cavagnaro
Malbec and Bonarda are the two most widely cultivated grape varieties in Argentina, and their derived red wines are recognized worldwide, being their intense color a major quality trait. The temperature during fruit ripening conditions berries color intensity. In the main viticulture region of Malbec and Bonarda a 2-3°C increase in temperature has been predicted for the upcoming years as consequence of the global climate change. In the present study, this predicted temperature raise was simulated under field-crop conditions, and its effect on anthocyanin pigmentation in berries of Malbec and Bonarda was monitored by HPLC analysis throughout the ripening process, in two growing seasons...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330556/microrna156-improves-drought-stress-tolerance-in-alfalfa-medicago-sativa-by-silencing-spl13
#11
Muhammad Arshad, Biruk A Feyissa, Lisa Amyot, Banyar Aung, Abdelali Hannoufa
Alfalfa (Medicago sativa) is an important forage crop that is often grown in areas that frequently experience drought and water shortage. MicroRNA156 (miR156) is an emerging tool for improving various traits in plants. We tested the role of miR156d in drought response of alfalfa, and observed a significant improvement in drought tolerance of miR156 overexpression (miR156OE) alfalfa genotypes compared to the wild type control (WT). In addition to higher survival and reduced water loss, miR156OE genotypes also maintained higher stomatal conductance compared to WT during drought stress...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330555/deciphering-the-role-of-the-phenylpropanoid-metabolism-in-the-tolerance-of-capsicum-annuum-l-to-verticillium-dahliae-kleb
#12
Marta Novo, Cristina Silvar, Fuencisla Merino, Teresa Martínez-Cortés, Fachuang Lu, John Ralph, Federico Pomar
Verticillium dahliae is an economically relevant soilborne pathogen that causes vascular wilt in several crops, including pepper (Capsicum annuum). Fungal infection is usually visualized as a vascular browning, likely due to the onset of phenylpropanoid metabolism, which also seems to play a crucial role in the tolerance of some pepper varieties. In the current work, the potential function of distinct phenylpropanoid derivatives (suberin, lignin and phenolic compounds) in the pepper tolerance response against V...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330554/qualitative-and-quantitative-modifications-of-root-mitochondria-during-senescence-of-above-ground-parts-of-arabidopis-thaliana
#13
Diego Darío Fanello, Carlos Guillermo Bartoli, Juan José Guiamet
This work studied modifications experienced by root mitochondria during whole plant senescence or under light deprivation, using Arabidopsis thaliana plants with YFP tagged to mitochondria. During post-bolting development, root respiratory activity started to decline after aboveground organs (i.e., rosette leaves) had senesced. This suggests that carbohydrate starvation may induce root senescence. Similarly, darkening the whole plant induced a decrease in respiration of roots. This was partially due to a decrease in the number of total mitochondria (YFP-labelled mitochondria) and most probably to a decrease in the quantity of mitochondria with a developed inner membrane potential (ΔΨm, i...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330553/physiological-and-molecular-insights-into-the-high-salinity-tolerance-of-pongamia-pinnata-l-pierre-a-potential-biofuel-tree-species
#14
Sureshbabu Marriboina, Debashree Sengupta, Sumit Kumar, Attipalli R Reddy
Soil salinity is gradually becoming a threat to the global economy by affecting agricultural productivity worldwide. Here, we analyze the salinity tolerance of Pongamia pinnata with an insight into the underlying physiological and molecular responses. Despite a reduction in net photosynthetic rate, P. pinnata efficiently maintained its leaf water potentials even at 500mM NaCl for 15days and displayed no visible stress symptoms. Na(+) localization analysis using CoroNa-Green AM revealed effective Na(+) sequestration in the roots when compared to leaves...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330552/ectopic-expression-of-taoep16-2-5b-a-wheat-plastid-outer-envelope-protein-gene-enhances-heat-and-drought-stress-tolerance-in-transgenic-arabidopsis-plants
#15
Xinshan Zang, Xiaoli Geng, Kelu Liu, Fei Wang, Zhenshan Liu, Liyuan Zhang, Yue Zhao, Xuejun Tian, Zhaorong Hu, Yingyin Yao, Zhongfu Ni, Mingming Xin, Qixin Sun, Huiru Peng
Abiotic stresses, such as heat and drought, are major environmental factors restricting crop productivity and quality worldwide. A plastid outer envelope protein gene, TaOEP16-2, was identified from our previous transcriptome analysis [1,2]. In this study, the isolation and functional characterization of the TaOEP16-2 gene was reported. Three homoeologous sequences of TaOEP16-2 were isolated from hexaploid wheat, which were localized on the chromosomes 5A, 5B and 5D, respectively. These three homoeologues exhibited different expression patterns under heat stress conditions, TaOEP16-2-5B was the dominant one, and TaOEP16-2-5B was selected for further analysis...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28224923/high-throughput-sequencing-reveals-modulation-of-micrornas-in-vigna-mungo-upon-mungbean-yellow-mosaic-india-virus-inoculation-highlighting-stress-regulation
#16
Anirban Kundu, Sujay Paul, Avishek Dey, Amita Pal
MicroRNAs (miRNAs) are 20-24 nucleotides long non-coding RNAs known to play important regulatory roles during biotic and abiotic stresses by controlling gene expression. Blackgram (Vigna mungo), an economically important grain legume is highly susceptible to pathogenic begomovirus Mungbean Yellow Mosaic India Virus (MYMIV) and resulting in high yield loss. In this study two different leaf-small-RNA libraries were prepared from the pooled RNA at three different time points of resistant V. mungo inbred line VM84 inoculated either with viruliferous or non-viruliferous whiteflies carrying MYMIV and performed high-throughput Illumina sequencing...
April 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28224922/multiple-garlic-allium-sativum-l-micrornas-regulate-the-immunity-against-the-basal-rot-fungus-fusarium-oxysporum-f-sp-cepae
#17
Subodh Kumar Chand, Satyabrata Nanda, Rukmini Mishra, Raj Kumar Joshi
The basal plate rot fungus, Fusarium oxysporum f. sp. cepae (FOC), is the most devastating pathogen posing a serious threat to garlic (Allium sativum L.) production worldwide. MicroRNAs (miRNAs) are key modulators of gene expression related to development and defense responses in eukaryotes. However, the miRNA species associated with garlic immunity against FOC are yet to be explored. In the present study, a small RNA library developed from FOC infected resistant garlic line was sequenced to identify immune responsive miRNAs...
April 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28224921/lemna-minor-plants-chronically-exposed-to-ionising-radiation-rna-seq-analysis-indicates-a-dose-rate-dependent-shift-from-acclimation-to-survival-strategies
#18
Arne Van Hoeck, Nele Horemans, Robin Nauts, May Van Hees, Hildegarde Vandenhove, Ronny Blust
Ecotoxicological research provides knowledge on ionising radiation-induced responses in different plant species. However, the sparse data currently available are mainly extracted from acute exposure treatments. To provide a better understanding of environmental exposure scenarios, the response to stress in plants must be followed in more natural relevant chronic conditions. We previously showed morphological and biochemical responses in Lemna minor plants continuously exposed for 7days in a dose-rate dependent manner...
April 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28224920/genetic-engineering-of-the-biosynthesis-of-glycinebetaine-leads-to-alleviate-salt-induced-potassium-efflux-and-enhances-salt-tolerance-in-tomato-plants
#19
Dandan Wei, Wen Zhang, Cuicui Wang, Qingwei Meng, Gang Li, Tony H H Chen, Xinghong Yang
Tomato (Solanum lycopersicum cv. 'Moneymaker') was transformed with the choline oxidase gene codA from Arthrobacter globiformis, which was modified to allow for targeting to both chloroplasts and the cytosol. Glycine betaine (GB) was accumulated in transformed plants, while no detectable GB was found in wild-type (WT) plants. Compared to WT plants, transgenic lines showed significantly higher photosynthetic rates (Pn) and antioxidant enzyme activities and lower reactive oxygen species (ROS) accumulation in the leaves when exposed to salt stress...
April 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28224919/characteristics-and-regulatory-pathway-of-the-prupesep1-sepallata-gene-during-ripening-and-softening-in-peach-fruits
#20
Jinjin Li, Fang Li, Ming Qian, Mingyu Han, Hangkong Liu, Dong Zhang, Juanjuan Ma, Caiping Zhao
SEPALLATA genes are members of a subfamily of MADS-box transcription factors, and have essential roles in floral organ development and fruit ripening. In this study, the PrupeSEP1 gene was cloned from peach flesh. Its deduced amino acid sequence was very similar to that of MdMADS8 and MdMADS9 in apple and MADS-RIN-like in strawberry. During storage of melting flesh (MF) peach, the pattern of SEP1 expression was similar to that of ethylene biosynthesis and ethylene signal transduction-related gene expression (EIN2 and ETR2)...
April 2017: Plant Science: An International Journal of Experimental Plant Biology
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