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BMC Plant Biology

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https://www.readbyqxmd.com/read/28292258/production-of-bp178-a-derivative-of-the-synthetic-antibacterial-peptide-bp100-in-the-rice-seed-endosperm
#1
Laura Montesinos, Mireia Bundó, Esther Badosa, Blanca San Segundo, María Coca, Emilio Montesinos
BACKGROUND: BP178 peptide is a synthetic BP100-magainin derivative possessing strong inhibitory activity against plant pathogenic bacteria, offering a great potential for future applications in plant protection and other fields. Here we report the production and recovery of a bioactive BP178 peptide using rice seeds as biofactories. RESULTS: A synthetic gene encoding the BP178 peptide was prepared and introduced in rice plants. The gene was efficiently expressed in transgenic rice under the control of an endosperm-specific promoter...
March 14, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28279171/single-amino-acid-substitutions-in-the-selectivity-filter-render-nbxip1-1%C3%AE-aquaporin-water-permeable
#2
Henry Ampah-Korsah, Yonathan Sonntag, Angelica Engfors, Andreas Kirscht, Per Kjellbom, Urban Johanson
BACKGROUND: Aquaporins (AQPs) are integral membrane proteins that facilitate transport of water and/or other small neutral solutes across membranes in all forms of life. The X Intrinsic Proteins (XIPs) are the most recently recognized and the least characterized aquaporin subfamily in higher plants. XIP1s have been shown to be impermeable to water but permeable to boric acid, glycerol, hydrogen peroxide and urea. However, uncertainty regarding the determinants for selectivity and lack of an activity that is easy to quantify have hindered functional investigations...
March 9, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28279165/root-morphogenic-pathways-in-eucalyptus-grandis-are-modified-by-the-activity-of-protein-arginine-methyltransferases
#3
Krista L Plett, Anita E Raposo, Stephen Bullivant, Ian C Anderson, Sabine C Piller, Jonathan M Plett
BACKGROUND: Methylation of proteins at arginine residues, catalysed by members of the protein arginine methyltransferase (PRMT) family, is crucial for the regulation of gene transcription and for protein function in eukaryotic organisms. Inhibition of the activity of PRMTs in annual model plants has demonstrated wide-ranging involvement of PRMTs in key plant developmental processes, however, PRMTs have not been characterised or studied in long-lived tree species. RESULTS: Taking advantage of the recently available genome for Eucalyptus grandis, we demonstrate that most of the major plant PRMTs are conserved in E...
March 9, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28270108/identification-and-analysis-of-the-stigma-and-embryo-sac-preferential-specific-genes-in-rice-pistils
#4
Li Yu, Tengfei Ma, Yuqin Zhang, Ying Hu, Ke Yu, Yueyue Chen, Haoli Ma, Jie Zhao
BACKGROUND: In rice, the pistil is the female reproductive organ, and it consists of two stigmas and an ovary. The stigma is capable of receiving pollen grains and guiding pollen tube growth. The ovary holds the embryo sac, which is fertilized with male gametes to produce seed. However, little is known about the gene function and regulatory networks during these processes in rice. RESULTS: Here, using the RNA-Seq technique, we identified 3531 stigma-preferential genes and 703 stigma-specific genes within the rice pistils, and we verified 13 stigma-specific genes via qRT-PCR and in situ hybridization...
March 7, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28253842/salicylic-acid-related-cotton-gossypium-arboreum-ribosomal-protein-garpl18-contributes-to-resistance-to-verticillium-dahliae
#5
Qian Gong, Zhaoen Yang, Xiaoqian Wang, Hamama Islam Butt, Eryong Chen, Shoupu He, Chaojun Zhang, Xueyan Zhang, Fuguang Li
BACKGROUND: Verticillium dahliae is a phytopathogenic fungal pathogen that causes vascular wilt diseases responsible for considerable decreases in cotton yields. The complex mechanism underlying cotton resistance to Verticillium wilt remains uncharacterized. Identifying an endogenous resistance gene may be useful for controlling this disease. RESULTS: We cloned the ribosomal protein L18 (GaRPL18) gene, which mediates resistance to Verticillium wilt, from a wilt-resistant cotton species (Gossypium arboreum)...
March 3, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28253854/effects-of-glucose-on-the-uptake-and-metabolism-of-glycine-in-pakchoi-brassica-chinensis-l-exposed-to-various-nitrogen-sources
#6
Qingxu Ma, Xiaochuang Cao, Yinan Xie, Han Xiao, Xiaoli Tan, Lianghuan Wu
BACKGROUND: Plants can absorb amino acids as a nitrogen (N) source, and glucose is an important part of root rhizodeposition and the soil sugar pool, which participates in the regulation of plant growth and uptake. In pakchoi, the effect of glucose concentration on the glycine N uptake from a nutrient mixture composed of glycine, ammonium, and nitrate, or from a single N solution of glycine alone was studied using specific substrate (15)N-labeling and (15)N-gas chromatography mass spectrometry...
March 2, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28249605/cultivable-gut-bacteria-provide-a-pathway-for-adaptation-of-chrysolina-herbacea-to-mentha-aquatica-volatiles
#7
Graziano Pizzolante, Chiara Cordero, Salvatore M Tredici, Davide Vergara, Paola Pontieri, Luigi Del Giudice, Andrea Capuzzo, Patrizia Rubiolo, Chidananda N Kanchiswamy, Simon A Zebelo, Carlo Bicchi, Massimo E Maffei, Pietro Alifano
BACKGROUND: A chemical cross-talk between plants and insects is required in order to achieve a successful co-adaptation. In response to herbivory, plants produce specific compounds, and feeding insects respond adequately7 to molecules produced by plants. Here we show the role of the gut microbial community of the mint beetle Chrysolina herbacea in the chemical cross-talk with Mentha aquatica (or watermint). RESULTS: By using two-dimensional gas chromatography-mass spectrometry we first evaluated the chemical patterns of both M...
March 2, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28245796/gene-expression-and-plant-hormone-levels-in-two-contrasting-rice-genotypes-responding-to-brown-planthopper-infestation
#8
Changyan Li, Chao Luo, Zaihui Zhou, Rui Wang, Fei Ling, Langtao Xiao, Yongjun Lin, Hao Chen
BACKGROUND: The brown planthopper (BPH; Nilaparvata lugens Stål) is a destructive piercing-sucking insect pest of rice. The plant hormones salicylic acid (SA) and jasmonic acid (JA) play important roles in plant-pest interactions. Many isolated rice genes that modulate BPH resistance are involved in the metabolism or signaling pathways of SA, JA and ethylene. 'Rathu Heenati' (RH) is a rice cultivar with a high-level, broad-spectrum resistance to all BPH biotypes. Here, RH was used as the research material, while a BPH-susceptible rice cultivar 'Taichung Native 1' (TN1) was the control...
February 28, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28245791/24-epibrassinolide-stimulates-imidacloprid-detoxification-by-modulating-the-gene-expression-of-brassica-juncea-l
#9
Anket Sharma, Sharad Thakur, Vinod Kumar, Anup Kumar Kesavan, Ashwani Kumar Thukral, Renu Bhardwaj
BACKGROUND: Pesticides cause oxidative stress to plants and their residues persist in plant parts, which are a major concern for the environment as well as human health. Brassinosteroids (BRs) are known to protect plants from abiotic stress conditions including pesticide toxicity. The present study demonstrated the effects of seed-soaking with 24-epibrassinolide (EBR) on physiological responses of 10-day old Brassica juncea seedlings grown under imidacloprid (IMI) toxicity. RESULTS: In the seedlings raised from EBR-treated seeds and grown under IMI toxicity, the contents of hydrogen peroxide (H2O2) and superoxide anion (O(...
February 28, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28241800/the-essence-of-nac-gene-family-to-the-cultivation-of-drought-resistant-soybean-glycine-max-l-merr-cultivars
#10
Reem M Hussain, Mohammed Ali, Xing Feng, Xia Li
BACKGROUND: The NAC gene family is notable due to its large size, as well as its relevance in crop cultivation - particularly in terms of enhancing stress tolerance of plants. These plant-specific proteins contain NAC domain(s) that are named after Petunia NAM and Arabidopsis ATAF1/2 and CUC2 transcription factors based on the consensus sequence they have. Despite the knowledge available regarding NAC protein function, an extensive study on the possible use of GmNACs in developing soybean cultivars with superior drought tolerance is yet to be done...
February 28, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28241786/de-novo-sequencing-and-comparative-transcriptome-analysis-of-the-male-and-hermaphroditic-flowers-provide-insights-into-the-regulation-of-flower-formation-in-andromonoecious-taihangia-rupestris
#11
Weiguo Li, Lihui Zhang, Zhan Ding, Guodong Wang, Yandi Zhang, Hongmei Gong, Tianjun Chang, Yanwen Zhang
BACKGROUND: Taihangia rupestris, an andromonoecious plant species, bears both male and hermaphroditic flowers within the same individual. However, the establishment and development of male and hermaphroditic flowers in andromonoecious Taihangia remain poorly understood, due to the limited genetic and sequence information. To investigate the potential molecular mechanism in the regulation of Taihangia flower formation, we used de novo RNA sequencing to compare the transcriptome profiles of male and hermaphroditic flowers at early and late developmental stages...
February 28, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28241796/physiological-and-proteomic-analyses-of-the-drought-stress-response-in-amygdalus-mira-koehne-y%C3%A3-et-lu-roots
#12
Yuan Cao, Qiuxiang Luo, Yan Tian, Fanjuan Meng
BACKGROUND: Plants are oftentimes exposed to many types of abiotic stresses. Drought is one of the main environmental stresses which limits plant growth, distribution and crop yield worldwide. Amygdalus mira (Koehne) Yü et Lu is an important wild peach, and it is considered an ideal wild peach germplasm for improving cultivated peach plants. Because of the loss of genetic variation, cultivated peach plants are sensitive to biotic and abiotic stresses. Wild peach germplasm can offer many useful genes for peach improvement...
February 27, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28231772/rhmkk9-a-rose-map-kinase-kinase-gene-is-involved-in-rehydration-triggered-ethylene-production-in-rose-gynoecia
#13
Jiwei Chen, Qian Zhang, Qigang Wang, Ming Feng, Yang Li, Yonglu Meng, Yi Zhang, Guoqin Liu, Zhimin Ma, Hongzhi Wu, Junping Gao, Nan Ma
BACKGROUND: Flower opening is an important process in the life cycle of flowering plants and is influenced by various endogenous and environmental factors. Our previous work demonstrated that rose (Rosa hybrida) flowers are highly sensitive to dehydration during flower opening and the water recovery process after dehydration induced ethylene production rapidly in flower gynoecia. In addition, this temporal- and spatial-specific ethylene production is attributed to a transient but robust activation of the rose MAP KINASE6-ACC SYNTHASE1 (RhMPK6-RhACS1) cascade in gynoecia...
February 23, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28231765/inter-individual-variation-in-dna-methylation-is-largely-restricted-to-tissue-specific-differentially-methylated-regions-in-maize
#14
Massimiliano Lauria, Rodrigo Antonio Echegoyen-Nava, Dalia Rodríguez-Ríos, Silvio Zaina, Gertrud Lund
BACKGROUND: Variation in DNA methylation across distinct genetic populations, or in response to specific biotic or abiotic stimuli, has typically been studied in leaf DNA from pooled individuals using either reduced representation bisulfite sequencing, whole genome bisulfite sequencing (WGBS) or methylation sensitive amplified polymorphism (MSAP). The latter represents a useful alterative when sample size is large, or when analysing methylation changes in genomes that have yet to be sequenced...
February 23, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28222700/quantitative-evaluation-of-protocorm-growth-and-fungal-colonization-in-bletilla-striata-orchidaceae-reveals-less-productive-symbiosis-with-a-non-native-symbiotic-fungus
#15
Tatsuki Yamamoto, Chihiro Miura, Masako Fuji, Shotaro Nagata, Yuria Otani, Takahiro Yagame, Masahide Yamato, Hironori Kaminaka
BACKGROUND: In nature, orchid plants depend completely on symbiotic fungi for their nutrition at the germination and the subsequent seedling (protocorm) stages. However, only limited quantitative methods for evaluating the orchid-fungus interactions at the protocorm stage are currently available, which greatly constrains our understanding of the symbiosis. Here, we aimed to improve and integrate quantitative evaluations of the growth and fungal colonization in the protocorms of a terrestrial orchid, Blettila striata, growing on a plate medium...
February 21, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28222679/comparative-mitogenomics-indicates-respiratory-competence-in%C3%A2-parasitic-viscum-despite%C3%A2-loss-of-complex-i%C3%A2-and-extreme-sequence%C3%A2-divergence-and-reveals-horizontal-gene-transfer-and-remarkable%C3%A2-variation-in-genome-size
#16
Elizabeth Skippington, Todd J Barkman, Danny W Rice, Jeffrey D Palmer
BACKGROUND: Aerobically respiring eukaryotes usually contain four respiratory-chain complexes (complexes I-IV) and an ATP synthase (complex V). In several lineages of aerobic microbial eukaryotes, complex I has been lost, with an alternative, nuclear-encoded NADH dehydrogenase shown in certain cases to bypass complex I and oxidize NADH without proton translocation. The first loss of complex I in any multicellular eukaryote was recently reported in two studies; one sequenced the complete mitogenome of the hemiparasitic aerial mistletoe, Viscum scurruloideum, and the other sequenced the V...
February 21, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28222675/identification-and-characterization-of-an-efficient-acyl-coa-diacylglycerol-acyltransferase-1-dgat1-gene-from-the-microalga-chlorella-ellipsoidea
#17
Xuejie Guo, Chengming Fan, Yuhong Chen, Jingqiao Wang, Weibo Yin, Richard R C Wang, Zanmin Hu
BACKGROUND: Oil in the form of triacylglycerols (TAGs) is quantitatively the most important storage form of energy for eukaryotic cells. Diacylglycerol acyltransferase (DGAT) is considered the rate-limiting enzyme for TAG accumulation. Chlorella, a unicellular eukaryotic green alga, has attracted much attention as a potential feedstock for renewable energy production. However, the function of DGAT1 in Chlorella has not been reported. RESULTS: A full-length cDNA encoding a putative diacylglycerol acyltransferase 1 (DGAT1, EC 2...
February 21, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28219335/stress-responsive-pathways-and-small-rna-changes-distinguish-variable-developmental-phenotypes-caused-by-msh1-loss
#18
Mon-Ray Shao, Sunil Kumar Kenchanmane Raju, John D Laurie, Robersy Sanchez, Sally A Mackenzie
BACKGROUND: Proper regulation of nuclear-encoded, organelle-targeted genes is crucial for plastid and mitochondrial function. Among these genes, MutS Homolog 1 (MSH1) is notable for generating an assortment of mutant phenotypes with varying degrees of penetrance and pleiotropy. Stronger phenotypes have been connected to stress tolerance and epigenetic changes, and in Arabidopsis T-DNA mutants, two generations of homozygosity with the msh1 insertion are required before severe phenotypes begin to emerge...
February 20, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28209137/transcriptional-analysis-of-defense-mechanisms-in-upland-tetraploid-switchgrass-to-greenbugs
#19
Teresa Donze-Reiner, Nathan A Palmer, Erin D Scully, Travis J Prochaska, Kyle G Koch, Tiffany Heng-Moss, Jeffrey D Bradshaw, Paul Twigg, Keenan Amundsen, Scott E Sattler, Gautam Sarath
BACKGROUND: Aphid infestation of switchgrass (Panicum virgatum) has the potential to reduce yields and biomass quality. Although switchgrass-greenbug (Schizaphis graminum; GB) interactions have been studied at the whole plant level, little information is available on plant defense responses at the molecular level. RESULTS: The global transcriptomic response of switchgrass cv Summer to GB was monitored by RNA-Seq in infested and control (uninfested) plants harvested at 5, 10, and 15 days after infestation (DAI)...
February 16, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28202046/highly-predictive-snp-markers-for-efficient-selection-of-the-wheat-leaf-rust-resistance-gene-lr16
#20
Mulualem T Kassa, Frank M You, Colin W Hiebert, Curtis J Pozniak, Pierre R Fobert, Andrew G Sharpe, James G Menzies, D Gavin Humphreys, Nicole Rezac Harrison, John P Fellers, Brent D McCallum, Curt A McCartney
BACKGROUND: Lr16 is a widely deployed leaf rust resistance gene in wheat (Triticum aestivum L.) that is highly effective against the North American Puccinia triticina population when pyramided with the gene Lr34. Lr16 is a seedling leaf rust resistance gene conditioning an incompatible interaction with a distinct necrotic ring surrounding the uredinium. Lr16 was previously mapped to the telomeric region of the short arm of wheat chromosome 2B. The goals of this study were to develop numerous single nucleotide polymorphism (SNP) markers for the Lr16 region and identify diagnostic gene-specific SNP marker assays for marker-assisted selection (MAS)...
February 15, 2017: BMC Plant Biology
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