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Plant Science: An International Journal of Experimental Plant Biology

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https://www.readbyqxmd.com/read/29241572/genome-wide-association-mapping-of-qtl-underlying-seed-oil-and-protein-contents-of-a-diverse-panel-of-soybean-accessions
#1
Ying-Hui Li, Jochen C Reif, Hui-Long Hong, Hui-Hui Li, Zhang-Xiong Liu, Yan-Song Ma, Jun Li, Yun Tian, Yan-Fei Li, Wen-Bin Li, Li-Juan Qiu
To investigate the genetic basis of variation in oil and protein contents in soybean seeds, a diverse collection of 421 mainly Chinese soybean cultivars was genotyped using 1536 SNPs, mostly from candidate genes related to acyl-lipid metabolism and from regions harboring known QTL. Six significant associations were identified for each of seed oil and protein contents which individually explained 2.7-5.9% of the phenotypic variance. Six associations occurred in or near known QTL and the remaining are putative novel QTL...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241571/rmr-receptor-membrane-ring-h2-type-1-and-2-show-different-promoter-activities-and-subcellular-localizations-in-arabidopsis-thaliana
#2
Alessandro Occhialini, Sophie Marc-Martin, Guillaume Gouzerh, Stefan Hillmer, Jean-Marc Neuhaus
Soluble vacuolar proteins reach their compartments of final accumulation through the binding with specific transmembrane cargo receptors. In Arabidopsis thaliana two different families of receptors have been characterized. The AtVSRs (Vacuolar Sorting Receptor), which are known to be involved in the protein sorting to lytic vacuoles (LV), and the AtRMRs (Receptor Membrane RING-H2), for which there is less evidence for a role in the traffic to the protein storage vacuole (PSV). In this study we investigated the localization and tissue expression of two RMRs (AtRMR1 and 2) in their species of origin, A...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241570/zmnst3-and-zmnst4-are-master-switches-for-secondary-wall-deposition-in-maize-zea-mays-l
#3
Wenhan Xiao, Yue Yang, Jingjuan Yu
Secondary walls are the most abundant biomass produced by plants, and they consist mainly of lignin, cellulose and hemicellulose. Understanding how secondary wall biosynthesis is regulated could potentially provide genetic tools for engineering biomass components, especially in maize and Sorghum bicolor. Although many works have focused on secondary wall biosynthesis in dicotyledons, little has been reported for these monocotyledons. In this study, we cloned two NAC transcriptional factor genes, ZmNST3 and ZmNST4, and analyzed their functions in maize secondary wall formation process...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241569/structure-function-relationships-in-photosynthetic-membranes-challenges-and-emerging-fields
#4
REVIEW
Helmut Kirchhoff
Oxygenic photosynthesis is a fundamental biological process that shaped the earth's biosphere. The process of energy transformation is hosted in highly specialized thylakoid membranes that adjust their architecture in response to environmental cues at different structural levels leading to the adjustment of photosynthetic functions. This review presents structure-function dynamics ranging from the whole membrane system over the mesoscopic level (protein ensembles) down to interactions between lipids and protein complexes...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241568/the-atmc4-regulates-the-stem-cell-homeostasis-in-arabidopsis-by-catalyzing-the-cleavage-of-atla1-protein-in-response-to-environmental-hazards
#5
Yifeng Huang, Yuchao Cui, Xueliang Hou, Tao Huang
The AtLa1 protein is an RNA binding factor that initiates the translation of WUSCHEL (WUS) mRNA in Arabidopsis. The AtLa1 protein can regulate the stem cell homeostasis via the nuclear-to-cytoplasmic translocation in response to environmental hazards. However, the translocation mechanism of AtLa1 protein remains to be elucidated. In the present study, we have explored the role of AtMC4 protein in the subcellular translocation of AtLa1 protein. Our results showed that the AtLa1 protein is a substrate of AtMC4 protein...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241567/pectic-enzymes-as-potential-enhancers-of-ascorbic-acid-production-through-the-d-galacturonate-pathway-in-solanaceae
#6
Maria Manuela Rigano, Vincenzo Lionetti, Assunta Raiola, Daniela Bellincampi, Amalia Barone
The increase of L-Ascorbic Acid (AsA) content in tomato (Solanum lycopersicum) is a common goal in breeding programs due to its beneficial effect on human health. To shed light into the regulation of fruit AsA content, we exploited a Solanum pennellii introgression line (IL12-4-SL) harbouring one quantitative trait locus that increases the content of total AsA in the fruit. Biochemical and transcriptomic analyses were carried out in fruits of IL12-4-SL in comparison with the cultivated line M82 at different stages of ripening...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241566/a-catechol-oxidase-acppo-from-cherimoya-annona-cherimola-mill-is-localized-to-the-golgi-apparatus
#7
Patricio Olmedo, Adrián A Moreno, Dayan Sanhueza, Iván Balic, Christian Silva-Sanzana, Baltasar Zepeda, Julian C Verdonk, César Arriagada, Claudio Meneses, Reinaldo Campos-Vargas
Cherimoya (Annona cherimola) is an exotic fruit with attractive organoleptic characteristics. However, it is highly perishable and susceptible to postharvest browning. In fresh fruit, browning is primarily caused by the polyphenol oxidase (PPO) enzyme catalyzing the oxidation of o-diphenols to quinones, which polymerize to form brown melanin pigment. There is no consensus in the literature regarding a specific role of PPO, and its subcellular localization in different plant species is mainly described within plastids...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241565/gene-mapping-and-transcriptome-profiling-of-a-practical-photo-thermo-sensitive-rice-male-sterile-line-with-seedling-specific-green-revertible-albino-leaf
#8
Xin Li, Ying He, Jie Yang, Yin-Hua Jia, Han-Lai Zeng
Abnormal environment weather can cause rice photoperiod-thermo-sensitive genic male sterile (PTGMS) lines fertile or partially fertile and thus cause the mixture of true hybrids with selfing seeds. Seedling-specific green-revertible albino leaf color mutant can be used to distinguish the real hybrids. Besides, it can also be used as an ideal material to research the development of chloroplast and biosynthesis of chlorophyll. The phenotype of leaf color mutants includes light green, yellowing, albino, green-revertible albino...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241564/chrysanthemum-mads-box-transcription-factor-cmanr1-modulates-lateral-root-development-via-homo-heterodimerization-to-influence-auxin-accumulation-in-arabidopsis
#9
Cui-Hui Sun, Jian-Qiang Yu, Li-Zhu Wen, Yun-Hui Guo, Xia Sun, Yu-Jin Hao, Da-Gang Hu, Cheng-Shu Zheng
Root system architecture is an important agronomic trait by which plants both acquire water and nutrients from the soil and adapt to survive in a complex environment. The adaptation of plant root systems to environmental constraints largely depends on the growth and development of lateral roots (LRs). MADS-box transcription factors (TFs) are important known regulators of plant growth, development, and response to environmental stimuli. However, the potential mechanisms by which they regulate LRs development remain poorly understood...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241563/two-metallocarboxypeptidase-inhibitors-are-implicated-in-tomato-fruit-development-and-regulated-by-the-inner-no-outer-transcription-factor
#10
B Molesini, G L Rotino, V Dusi, R Chignola, T Sala, G Mennella, G Francese, T Pandolfini
The TCMP-1 and TCMP-2 genes of tomato code for metallocarboxypeptidase inhibitors and show sequential, tightly regulated expression patterns during flower and fruit development. In particular, TCMP-1 is highly expressed in flower buds before anthesis, while TCMP-2 in ripe fruits. Their expression pattern suggests that they might play a role in fruit development. Here, to investigate their function, we altered their endogenous levels by generating transgenic plants harbouring a chimeric gene expressing the TCMP-1 coding sequence under the control of the TCMP-2 promoter...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241562/editorial
#11
EDITORIAL
Eduardo Blumwald, Erich Grotewold, Tom Okita, Liwen Jiang, David Wendehenne
No abstract text is available yet for this article.
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241561/arabidopsis-mterf6-is-required-for-leaf-patterning
#12
Pedro Robles, Eva Núñez-Delegido, Almudena Ferrández-Ayela, Raquel Sarmiento-Mañús, José Luis Micol, Víctor Quesada
To enhance our understanding of the roles of mitochondrial transcription termination factors (mTERFs) in plants, we have taken a reverse genetic approach in Arabidopsis thaliana. One of the mutants isolated carried a novel allele of the mTERF6 gene, which we named mterf6-5. mTERF6 is a chloroplast and mitochondrial localised protein required for the maturation of chloroplast isoleucine tRNA. The mterf6-5 plants are pale and exhibit markedly reduced growth, and altered leaf and chloroplast development. Our qRT-PCR analyses revealed mis-expression of several plastid, mitochondrial and nuclear genes in mterf6-5 plants...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241560/rna-sequencing-and-analysis-of-three-lupinus-nodulomes-provide-new-insights-into-specific-host-symbiont-relationships-with-compatible-and-incompatible-bradyrhizobium-strains
#13
J Keller, J Imperial, T Ruiz-Argüeso, K Privet, O Lima, S Michon-Coudouel, M Biget, A Salmon, A Aïnouche, F Cabello-Hurtado
Nitrogen fixation in the legume root-nodule symbiosis has a critical importance in natural and agricultural ecosystems and depends on the proper choice of the symbiotic partners. However, the genetic determinism of symbiotic specificity remains unclear. To study this process, we inoculated three Lupinus species (L. albus, L. luteus, L. mariae-josephae), belonging to the under-investigated tribe of Genistoids, with two Bradyrhizobium strains (B. japonicum, B. valentinum) presenting contrasted degrees of symbiotic specificity depending on the host...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29241559/mir393-inhibits-in-vitro-shoot-regeneration-in-arabidopsis-thaliana-via-repressing-tir1
#14
Long Wang, Zhenhua Liu, Meng Qiao, Fengning Xiang
A large number of genes are involved in the control of shoot regeneration from in vitro cultured plant material. The abundance of the miR393 was different between regenerable and non-regenerable calli induced from Arabidopsis thaliana explants. The regenerability of root explants derived from p35S:miR393a (the miR393a over-expressing line) was shown here to be poorer than that of the wild type (WT). Also, explants derived from plants engineered to constitutively express MIM393 (a mutated form of miR393) had an enhanced level of shoot regeneration...
January 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29223345/synergy-between-root-hydrotropic-response-and-root-biomass-in-maize-zea-mays-l-enhances-drought-avoidance
#15
Delfeena Eapen, Jesús Martínez-Guadarrama, Oralia Hernández-Bruno, Leonardo Flores, Jorge Nieto-Sotelo, Gladys I Cassab
Roots of higher plants change their growth direction in response to moisture, avoiding drought and gaining maximum advantage for development. This response is termed hydrotropism. There have been few studies of root hydrotropism in grasses, particularly in maize. Our goal was to test whether an enhanced hydrotropic response of maize roots correlates with a better adaptation to drought and partial/lateral irrigation in field studies. We developed a laboratory bioassay for testing hydrotropic response in primary roots of 47 maize elite DTMA (Drought Tolerant Maize for Africa) hybrids...
December 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29223344/native-vascular-related-nac-transcription-factors-are-efficient-regulator-of-multiple-classes-of-secondary-wall-associated-genes-in-banana
#16
Sanjana Negi, Himanshu Tak, T R Ganapathi
Secondary-wall deposition in xylem vessel elements is regulated by vascular-related NAC transcription factors (VNDs). We show that three banana VNDs (MusaVND1, MusaVND2 and MusaVND3) directly regulate multiple secondary-wall associated genes by binding to their 5'-upstream regulatory region. Transgenic banana harboring either PMusaVND1:GUS, PMusaVND2:GUS or PMusaVND3:GUS showed specific GUS staining in lignified tissues. MusaVND1, MusaVND2 and MusaVND3 encodes transcriptional-activators as its C-terminal region drive expression of reporter genes in vivo in yeast...
December 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29223343/biotic-factors-that-induce-the-tomato-ve1-r-gene
#17
Christian Danve Castroverde, Xin Xu, Ross N Nazar, Jane Robb
In tomato, Verticillium resistance is determined by the Ve gene locus encoding two leucine-rich repeat-receptor-like proteins (Ve1, Ve2). The resistance function usually is attributed to Ve1 alone, with two known alleles: Ve1, encoding a resistance protein, and ve1, with a premature stop codon encoding a truncated product. We have examined further Ve-gene expression in resistant and susceptible near-isolines of Verticillium-infected Craigella tomatoes, using both quantitative RT-PCR and an alternative RFLP assay...
December 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29223342/enhanced-resistance-to-rice-blast-and-sheath-blight-in-rice-oryza-sativa-l-by-expressing-the-oxalate-decarboxylase-protein-bacisubin-from-bacillus-subtilis
#18
Zhongqiang Qi, Junjie Yu, Lerong Shen, Zhenxian Yu, Mina Yu, Yan Du, Rongsheng Zhang, Tianqiao Song, Xiaole Yin, Yuxin Zhou, Huanhuan Li, Qian Wei, Yongfeng Liu
Oxalate decarboxylase (OxDC), catalyzing the degradation of oxalic acid, is widely distributed in varieties of organisms. In this study, an oxalate decarboxylase gene from Bacillus subtilis strain BS-916, Bacisubin, was transformed into rice variety Nipponbare to generate transgenic rice with increased OxDC activity. Pathogenicity test revealed that the transgenic rice showed enhanced resistance to rice blast and sheath blight. Further RNA-seq analysis between Nipponbare WT (wild type) and transgenic rice identified 1764 DEGs (Differentially expressed genes) including 723 up-regulated unigenes and 1041 down-regulated unigenes...
December 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29223341/genetic-resistance-against-viruses-in-phaseolus-vulgaris-l-state-of-the-art-and-future-prospects
#19
REVIEW
Chouaïb Meziadi, Sophie Blanchet, Valérie Geffroy, Stéphanie Pflieger
Viruses are obligate parasites that replicate intracellularly in many living organisms, including plants. Consequently, no chemicals are available that target only the virus without impacting host cells or vector organisms. The use of natural resistant varieties appears as the most reliable control strategy and remains the best and cheapest option in managing virus diseases, especially in the current ecological context of preserving biodiversity and environment in which the use of phytosanitary products becomes limited...
December 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29223340/silencing-of-histone-deacetylase-slhdt3-delays-fruit-ripening-and-suppresses-carotenoid-accumulation-in-tomato
#20
Jun-E Guo, Zongli Hu, Fenfen Li, Lincheng Zhang, Xiaohui Yu, Boyan Tang, Guoping Chen
The acetylation levels of histones on lysine residues are regulated by histone acetyltransferases and histone deacetylases, which play an important but understudied role in the control of gene expression in plants. There is an increasing research focus on histone deacetylation in crops, but to date, there is little information regarding tomato. With the aim of characterizing the tomato HD2 family of histone deacetylases, an RNA interference (RNAi) expression vector of SlHDT3 was constructed and transformed into tomato plants...
December 2017: Plant Science: An International Journal of Experimental Plant Biology
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