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arabidopsis OR rice

Jianjun Hu, Chong Li, Duu-Jong Lee, Qianhui Guo, Shuheng Zhao, Quanguo Zhang, Dun Li
Chemical looping gasification is a promising technology to convert biomass into syngas with low adverse effects by heat loss and production dilution. This study utilized 60% loading Fe2 O3 /Al2 O3 oxygen carrier (OC) for gasification tests on four biomass samples: rice straw, corn stalk, peanut shell and wheat straw under OC/biomass (OC/B) ratio of 1.0, steam/biomass (S/B) ratio of 2.8, reaction time of 20 min, and reaction temperature of 850 °C. All biomass samples yielded similar gasification performances: CO content 19...
February 2, 2019: Bioresource Technology
Shuhui Song, Dongmei Tian, Zhang Zhang, Songnian Hu, Jun Yu
Domestic rice (Oryza sativa L.) is one of the most important cereal crops, feeding a large number of worldwide populations. Along with various high-throughput genome sequencing projects, rice genomics has been making great headway toward direct field applications of basic research advances in understanding the molecular mechanisms of agronomical traits and utilizing diverse germplasm resources. Here, we briefly review its achievements over the past two decades and present the potential for its bright future...
February 13, 2019: Genomics, Proteomics & Bioinformatics
Cecile Giustini, Matthieu Graindorge, David Cobessi, Serge Crouzy, Adeline Robin, Gilles Curien, Michel Matringe
Alternative routes for the post-chorismate branch of the biosynthetic pathway leading to tyrosine exist, the 4-hydroxyphenylpyruvate or the arogenate route. The arogenate route involves the transamination of prephenate into arogenate. In a previous study, we found that, depending on the microorganisms possessing the arogenate route, three different aminotransferases evolved to perform prephenate transamination i.e. 1β aspartate aminotransferase (1β AAT), N-succinyl-l,l-diaminopimelate aminotransferase, and branched-chain aminotransferase...
February 16, 2019: FEBS Journal
Jian Ma, Yongfei Wang, Xiaoding Ma, Lingzhi Meng, Ruonan Jing, Fan Wang, Shuai Wang, Zhijun Cheng, Xin Zhang, Ling Jiang, Jiulin Wang, Jie Wang, Zhichao Zhao, Xiuping Guo, Qibing Lin, Fuqing Wu, Shanshan Zhu, Wu Chuanyin, Yulong Ren, Cailin Lei, Huqu Zhai, Jianmin Wan
Lesion mimic mutants that exhibit spontaneous hypersensitive response (HR)-like necrotic lesions are ideal experimental systems for elucidating molecular mechanisms involved in plant cell death and defense responses. Here we report identification of a rice lesion mimic mutant, spotted leaf 35 (spl35), and cloning of the causal gene by TAIL-PCR strategy. spl35 exhibited decreased chlorophyll content, higher accumulation of H2 O2 , up-regulated expression of defense-related marker genes, and enhanced resistance to both fungal and bacterial pathogens of rice...
February 16, 2019: Plant Biotechnology Journal
Yi-Han Lou, Jia-Bao Lu, Dan-Ting Li, Yu-Xuan Ye, Xu-Mei Luo, Chuan-Xi Zhang
The brown planthopper (BPH), Nilaparvata lugens, is a major threat to rice production. The eggshell plays an important role in insect reproduction. The constituents and formation process of BPH eggshells remains largely unknown. Here we report a novel eggshell associated protein, NlChP38, containing an amelogenin domain, is essential for normal ovulation in the brown planthopper. NlChP38 is specifically expressed in the follicular cells from egg chambers at both RNA and protein levels. RNA interference (RNAi) of NlChP38 resulted in oocytes with loose and thin eggshell structure and caused ovulation difficulties...
February 16, 2019: Insect Molecular Biology
Lichao Huang, Long Chen, Lan Wang, Yaolong Yang, Yuchun Rao, Deyong Ren, Liping Dai, Yihong Gao, Weiwei Zou, Xueli Lu, Guangheng Zhang, Li Zhu, Jiang Hu, Guang Chen, Lan Shen, Guojun Dong, Zhenyu Gao, Longbiao Guo, Qian Qian, Dali Zeng
Water deficit is a major environmental threat affecting crop yields worldwide. In this study, a drought stress-sensitive mutant drought sensitive 8 (ds8) was identified in rice (Oryza sativa L.). The DS8 gene was cloned using a map-based approach. Further analysis revealed that DS8 encoded a Nck-associated protein 1 (NAP1)-like protein, a component of the SCAR/WAVE complex, which played a vital role in actin filament nucleation activity. The mutant exhibited changes in leaf cuticle development. Functional analysis revealed that the mutation of DS8 increased stomatal density and impaired stomatal closure activity...
February 16, 2019: Plant Journal: for Cell and Molecular Biology
Yuichi Furuhata, Ayako Sakai, Tomi Murakami, Mone Morikawa, Chikashi Nakamura, Takeshi Yoshizumi, Ushio Fujikura, Keiji Nishida, Yoshio Kato
Genome engineering in plants is highly dependent on the availability of effective molecular techniques. Despite vast quantities of research, genome engineering in plants is still limited in terms of gene delivery, which requires the use of infectious bacteria or harsh conditions owing to the difficulty delivering biomaterial into plant cells through the cell wall. Here, we describe a method that uses electroporation-mediated protein delivery into cultured Arabidopsis thaliana cells possessing an intact cell wall, and demonstrate Cre-mediated site-specific recombination...
February 15, 2019: Scientific Reports
Deepak D Bhandari, Dmitry Lapin, Barbara Kracher, Patrick von Born, Jaqueline Bautor, Karsten Niefind, Jane E Parker
Plant intracellular NLR receptors recognise pathogen interference to trigger immunity but how NLRs signal is not known. Enhanced disease susceptibility1 (EDS1) heterodimers are recruited by Toll-interleukin1-receptor domain NLRs (TNLs) to transcriptionally mobilise resistance pathways. By interrogating the Arabidopsis EDS1 ɑ-helical EP-domain we identify positively charged residues lining a cavity that are essential for TNL immunity signalling, beyond heterodimer formation. Mutating a single, conserved surface arginine (R493) disables TNL immunity to an oomycete pathogen and to bacteria producing the virulence factor, coronatine...
February 15, 2019: Nature Communications
Khanh Luu, Nandhakishore Rajagopalan, John C H Ching, Michele C Loewen, Matthew E Loewen
In plants, strict regulation of stomatal pores is critical for modulation of CO2 fixation and transpiration. Under certain abiotic and biotic stressors, pore closure is initiated through anionic flux, with calcium (Ca2+ ), playing a central role. The aluminum-activated malate transporter 12 (ALMT12) is a malate-activated, voltage-dependent member of the aluminum-activated malate transporter family, implicated in anionic flux from guard cells controlling stomatal aperture. Herein, we report the characterization of the regulatory mechanisms mediating channel activities of an ALMT from the grass Brachypodium distachyon (BdALMT12), with highest sequence identity to Arabidopsis thaliana ALMT12...
February 15, 2019: Journal of Biological Chemistry
Lilong He, Ying Jing, Jian-Lin Shen, Xi-Ning Li, Hui-Ping Liu, Zi-Long Geng, Mei Wang, Yongqing Li, Dong-Hua Chen, Jianwei Gao, Wei Zhang
Cadmium (Cd) is a major heavy metal pollutant and Cd toxicity is a serious cause of abiotic stress in the environment. Plants protect themselves against Cd stress through a variety of pathways. In a recent study, we found that mitochondrial pyruvate carriers (MPCs) are involved in Cd tolerance in Arabidopsis (Arabidopsis thaliana). Following the identification of MPCs in yeast in 2012, most studies have focused on the function of MPCs in animals, as a possible approach to reduce the risk of cancer developing...
February 15, 2019: Plant Physiology
Jingjing Hou, Caihong Cao, Yini Ruan, Yanyan Deng, Yaxin Liu, Kun Zhang, Lubin Tan, Zuofeng Zhu, Hongwei Cai, Fengxia Liu, Hongying Sun, Ping Gu, Chuanqing Sun, Yongcai Fu
The emergence of sterile individuals in the hybrid backcross progeny of wild and cultivated rice limits the use of wild rice alleles for improving cultivated rice, but the molecular mechanisms underlying this sterility remain unclear. Here, we identified the semi-sterile introgression line YIL42, derived from a cross between the indica rice variety Teqing (Oryza sativa L.) and Oryza rufipogon Griff. accession YJCWR (Yuanjiang common wild rice), which exhibits semi-sterility. Using positional cloning, we isolated EMBRYO SAC ABORTION 1 (ESA1), which encodes a nuclear-membrane localized protein containing an armadillo (ARM) repeat domain...
February 15, 2019: Plant Physiology
Zhe Wang, Xifeng Li, Nana Liu, Qi Peng, Yuexia Wang, Baofang Fan, Cheng Zhu, Zhixiang Chen
Plants produce different types of endoplasmic reticulum (ER)-derived vesicles that accumulate and transport proteins, lipids, and metabolites. In the Brassicales, a distinct ER-derived structure called the ER body is found throughout the epidermis of cotyledons, hypocotyls, and roots. NAI2 is a key factor for ER body formation in Arabidopsis (Arabidopsis thaliana). Homologs of NAI2 are found only in the Brassicales and therefore may have evolved specifically to enable ER body formation. Here, we report that three related Arabidopsis NAI2-interacting proteins (NAIP1, 2, and 3) play a critical role in the biogenesis of ER bodies and related structures...
February 15, 2019: Plant Physiology
Delphine Gendre, Anirban Baral, Xie Dang, Nicolas Esnay, Yohann Boutté, Thomas Stanislas, Thomas Vain, Stéphane Claverol, Anna Gustavsson, Deshu Lin, Markus Grebe, Rishikesh P Bhalerao
Root hairs are protrusions from root epidermal cells with critical roles in plant soil interactions. While much is known about patterning, polarity and tip growth of root hairs, contributions of membrane trafficking to hair initiation remain poorly understood. Here we demonstrate that the trans-Golgi network-localized YPT-INTERACTING PROTEINS 4a/b contribute to activation and plasma membrane accumulation of Rho-of-plant (ROP) small GTPases during hair initiation, identifying YIP4a/b as central trafficking components in ROP-dependent root hair formation...
February 15, 2019: Development
Roni A Neff, Marie Spiker, Christina Rice, Alexandra Schklair, Sally Greenberg, Emily Broad Leib
INTRODUCTION: Food date labels such as "best before" and "sell by" are largely unregulated in the United States (U.S.), although new voluntary standards are coming into effect. A U.S. consumer survey was performed in April 2016 to inform policy and education activities related to date labels. METHODS: The survey was administered online to a nationally representative sample of 1029 adults as part of a biweekly omnibus survey. Survey questions assessed the frequency of discarding food based on date labels by food type, interpretation of label language variations, and knowledge of whether date labels are currently regulated by the federal government...
February 7, 2019: Waste Management
MingNa Sun, Lu Yu, Zhou Tong, Xu Dong, Yue Chu, Mei Wang, TongChun Gao, JinSheng Duan
Kresoxim-methyl is a high-efficiency and broad-spectrum fungicide used for the control of rice fungal diseases; however, its residues after application potentially threaten human health. Investigations on the dissipation of kresoxim-methyl residue in rice field systems and dietary risk assessment of kresoxim-methyl in humans are limited. The present study employed the QuEChERS-GC-MS/MS method for residue analysis of kresoxim-methyl in rice plants, brown rice, and rice husks. The samples were extracted with acetonitrile and purified by PSA, C18 column, and GCB...
February 15, 2019: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Jiajin Hu, Emily Oken, Izzuddin M Aris, Pi-I D Lin, Yanan Ma, Ning Ding, Ming Gao, Xiaotong Wei, Deliang Wen
Dietary patterns during pregnancy have been shown to influence the development of gestational diabetes mellitus (GDM). However, evidence from Asian populations is limited and inconsistent. We conducted a prospective cohort study in China to assess the relationship between dietary patterns and GDM. We administered three-day food diaries (TFD) and food frequency questionnaires (FFQ) at the second trimester. GDM was diagnosed with a 75 g 2-h oral glucose tolerance test at 24⁻28 weeks of gestation. We identified dietary patterns using principal components analysis and used multivariable logistic regression to investigate associations of dietary patterns with GDM...
February 15, 2019: Nutrients
Xiaoshuang Li, Yuqing Liang, Bei Gao, Meiheriguli Mijiti, Tohir A Bozorov, Honglan Yang, Daoyuan Zhang, Andrew J Wood
Drought and salinity are major factors limiting crop productivity worldwide. DREB (dehydration-responsive element-binding) transcription factors play important roles in plant stress response and have been identified in a wide variety of plants. Studies on DREB are focused on the A-1 ( DREB1 ) and A-2 ( DREB2 ) groups. Studies on A-5 group DREBs, which represent a large proportion of the DREB subfamily, is limited. In this study, we characterized and analyzed the stress tolerance function of ScDREB10, an A-5c type DREB gene from the desert moss Syntrichia caninervis ...
February 14, 2019: Genes
Ren-Fang Zeng, Jing-Jing Zhou, Sheng-Rui Liu, Zhi-Meng Gan, Jin-Zhi Zhang, Chun-Gen Hu
SQUAMOSA-promoter binding protein (SBP)-box genes encode a family of plant-specific transcription factors that play vital roles in plant growth and development. In this study, 15 SBP-box genes were identified and isolated from Citrus clementina ( CclSBPs ), where 10 of these genes were predicted to be putative targets of Citrus clementina microRNA156 (CclmiR156). The 15 CclSBP genes could be classified into six groups based on phylogenetic analysis, diverse intron⁻exon structure, and motif prediction, similar to the SQUAMOSA promoter binding protein-like (SPL) gene family of Populus trichocarpa and Arabidopsis thaliana ...
February 14, 2019: Biomolecules
Suresh Damodaran, Amélie Dubois, Juan Xie, Qin Ma, Valérie Hindié, Senthil Subramanian
Fabaceans produce two major classes of symbiotic nodules: the indeterminate type characterized by a persistent meristem, and the determinate type that lacks a persistent meristem. The class III homeodomain leucine zipper (HD-ZIP III) transcription factor family influence development of multiple lateral organs and meristem maintenance, but their role in determinate nodule development is not known. HD-ZIP III protein activity is post-translationally regulated by members of the small leucine zipper protein (ZPR) family in arabidopsis...
February 14, 2019: International Journal of Molecular Sciences
Huilong Zhang, Chen Deng, Jun Yao, Yan-Li Zhang, Yi-Nan Zhang, Shurong Deng, Nan Zhao, Gang Sa, Xiaoyang Zhou, Cunfu Lu, Shanzhi Lin, Rui Zhao, Shaoliang Chen
Sodium chloride (NaCl) induced expression of a jacalin-related mannose-binding lectin ( JRL ) gene in leaves, roots, and callus cultures of Populus euphratica (salt-resistant poplar). To explore the mechanism of the PeJRL in salinity tolerance, the full length of PeJRL was cloned from P. euphratica and was transformed into Arabidopsis. PeJRL was localized to the cytoplasm in mesophyll cells. Overexpression of PeJRL in Arabidopsis significantly improved the salt tolerance of transgenic plants, in terms of seed germination, root growth, and electrolyte leakage during seedling establishment...
February 14, 2019: International Journal of Molecular Sciences
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