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Plant Cell Reports

Sepideh Sanjari, Reza Shirzadian-Khorramabad, Zahra-Sadat Shobbar, Maryam Shahbazi
SbNAC genes (131) encoding 183 proteins were identified from the sorghum genome and characterized. The expression patterns of SbSNACs were evaluated at three sampling time points under post-flowering drought stress. NAC proteins are specific transcription factors in plants, playing vital roles in development and response to various environmental stresses. Despite the fact that Sorghum bicolor is well-known for its drought-tolerance, it suffers from grain yield loss due to pre and post-flowering drought stress...
January 9, 2019: Plant Cell Reports
Xiang Liu, Jian Zhang, Deyu Xie, Robert G Franks, Qiu-Yun Jenny Xiang
TFL1homologCorcanTFL1suppresses the initiation of inflorescence development and regulates the inflorescence morphology inCornus canadensis. In flowering plants, there is a wide range of variation of inflorescence morphology. Despite the ecological and evolutionary importance, efforts devoted to the evolutionary study of the genetic basis of inflorescence morphology are far fewer compared to those on flower development. Our previous study on gene expression patterns suggested a CorTFL1-CorAP1 based model for the evolution of determinate umbels, heads, and mini dichasia from elongated inflorescences in Cornus...
January 7, 2019: Plant Cell Reports
Yingying Zhao, Yihua Zhang, Feijie Liu, Ren Wang, Liqin Huang, Wenbiao Shen
Pharmacological and molecular evidence reveals a novel role of methane (CH4 ) gas in root organogenesis, the induction of lateral root (LR) formation, and this response might require hydrogen peroxide (H2 O2 ) synthesis. Although plants can produce CH4 and release this to atmosphere, the beneficial role(s) of CH4 are not fully elucidated. In this study, the fumigation with CH4 not only increased NADPH oxidase activity and H2 O2 production, but also induced tomato lateral root primordial formation and thereafter LR development...
January 7, 2019: Plant Cell Reports
Xiaoding Ma, Jiani Zhang, Bing Han, Jianghong Tang, Di Cui, Longzhi Han
FLA, the homolog of ubiquitin-specific protease does not have deubiquitination activity, but it is essential for flower and chloroplast development in rice. Ubiquitin-specific proteases (UBPs) are widely distributed and highly conserved proteins and are also members of the most important family of deubiquitination enzymes. Although the functions and phylogenies of UBPs from yeast, mammals and Arabidopsis have been widely reported, the functions and evolutionary relationships of UBPs in rice remain unclear. In this study, we characterized the rice flower and leaf color aberrant mutant (fla), which exhibited a variety of developmental defects, including abnormal floral organs and pollen development, and leaf bleaching...
January 2, 2019: Plant Cell Reports
Horim Lee, Ye Sol Jun, Ok-Kyoung Cha, Jen Sheen
CLV3p-mediated phosphorylation of MPK3 and MPK6 occurs via CLV1 and BAM1 receptors to regulate the maintenance of SAM development. The CLAVATA peptide-receptor (CLV3p-CLV1) pathway modulates a homeodomain master regulator WUSCHEL (WUS) transcription factor in the shoot apical meristem (SAM) with poorly defined signaling mechanisms. Here, we report that mitogen-activated protein kinases (MAPKs, also known as MPKs in plants) act in an intracellular signaling cascade to play an important role in the maintenance of SAM development...
December 14, 2018: Plant Cell Reports
Qiang He, Xiaomin Wang, Li He, Lei Yang, Shengwang Wang, Yurong Bi
Alternative respiration pathway is involved in the response of highland barley to salt stress. The response of two barley seedlings to salt stress was investigated. Results showed that the growth of highland barley (Kunlun 14) and barley (Ganpi 6) had no obvious difference under low concentrations (50, 100 and 200 mM) of NaCl treatment. However, high concentrations of NaCl treatment (300 and 400 mM) severely affected the growth of two barley cultivars. Under 300 mM NaCl treatment, the fresh weight, relative water content (RWC), pigments and K+ content reduced more in Ganpi 6 than in Kunlun 14...
December 12, 2018: Plant Cell Reports
Li-Na Ding, Xiao-Juan Guo, Ming Li, Zheng-Li Fu, Su-Zhen Yan, Ke-Ming Zhu, Zheng Wang, Xiao-Li Tan
Seed germination rate and oil content can be regulated at the GDSL transcriptional level by either AtGDSL1 or BnGDSL1 in B. napus. Gly-Asp-Ser-Leu (GDSL)-motif lipases represent an important subfamily of lipolytic enzymes, which play important roles in lipid metabolism, seed development, abiotic stress, and pathogen defense. In the present study, two closely related GDSL-motif lipases, Brassica napus GDSL1 and Arabidopsis thaliana GDSL1, were characterized as functioning in regulating germination rate and seed oil content in B...
December 10, 2018: Plant Cell Reports
Vishal Sharma, Parul Goel, Sanjay Kumar, Anil Kumar Singh
An apple gene, MdDREB76 encodes a functional transcription factor and imparts salinity and drought stress endurance to transgenic tobacco by activating expression of stress-responsive genes. The dehydration-responsive element (DRE)-binding protein (DREB) transcription factors are well known to be involved in regulating abiotic stress-mediated gene expression in plants. In this study, MdDREB76 gene was isolated from apple (Malus x domestica), which encodes a functional transcription factor protein. Overexpression of MdDREB76 in tobacco conferred salt and drought stress tolerance to transgenic lines by inducing antioxidant enzymes, such as superoxide dismutase, ascorbate peroxidase and catalase...
December 3, 2018: Plant Cell Reports
Katsuhiro Nakanishi, Shota Morikane, Nao Hosokawa, Yuka Kajihara, Kohta Kurohane, Yasuo Niwa, Hirokazu Kobayashi, Yasuyuki Imai
A key module, secretory component (SC), was efficiently expressed in Arabidopsis thaliana. The plant-based SC and immunoglobulin A of animal or plant origin formed secretory IgA that maintains antigen-binding activity. Plant expression systems are suitable for scalable and cost-effective production of biologics. Secretory immunoglobulin A (SIgA) will be useful as a therapeutic antibody against mucosal pathogens. SIgA is equipped with a secretory component (SC), which assists the performance of SIgA on the mucosal surface...
November 30, 2018: Plant Cell Reports
Ping Su, Linhui Gao, Shuang Liu, Hongyu Guan, Jian Wang, Yifeng Zhang, Yujun Zhao, Tianyuan Hu, Lichan Tu, Jiawei Zhou, Baowei Ma, Xihong Liu, Luqi Huang, Wei Gao
We found two subunits FTase/GGTaseI-α and FTase-β formed a heterodimer to transfer a farnesyl group from FPP to protein N-dansyl-GCVLS, confirming they are responsible for protein farnesylation in planta. Tripterygium wilfordii is a medicinal plant with a broad spectrum of anti-inflammatory, immunosuppressive and anti-cancer activities. Recently, a number of studies have focused on investigating the biosynthetic pathways of its bioactive compounds, whereas little attention has been paid to the enzymes which play important roles in regulating diverse developmental processes of T...
November 30, 2018: Plant Cell Reports
Penghui Cao, Yakun Ren, Xi Liu, Tianyu Zhang, Ping Zhang, Lianjie Xiao, Fulin Zhang, Shijia Liu, Ling Jiang, Jianmin Wan
GARS encodes an enzyme catalyzing the second step of purine nucleotide biosynthesis and plays an important role to maintain the development of chloroplasts in juvenile plants by affecting the expression of plastid-encoded genes. A series of rice white striped mutants were previously described. In this research, we characterized a novel gars mutant with white striped leaves at the seedling stage. By positional cloning, we identified the mutated gene, which encodes a glycinamide ribonucleotide synthetase (GARS) that catalyzes the second step of purine nucleotide biosynthesis...
November 29, 2018: Plant Cell Reports
Iwona Żur, Ewa Dubas, Monika Krzewska, Kamil Zieliński, Jozsef Fodor, Franciszek Janowiak
Depending on the capability for stress adaptation, the role played by glutathione in microspore embryogenesis consists of both antioxidative activity and stimulation of embryo-like structure development. The efficiency of microspore embryogenesis (ME) is determined by the complex network of internal and environmental factors. Among them, the efficient defence against oxidative stress seems to be one of the most important. The present study confirms this hypothesis showing the positive effect of glutathione-the most abundant cellular antioxidant-on ME in isolated microspore cultures of triticale (× Triticosecale Wittm...
November 29, 2018: Plant Cell Reports
Haixia Wang, Huan He, Yetong Qi, Hazel McLellan, Zhejuan Tian, Paul R J Birch, Zhendong Tian
Oomycetes MAMP Pep-13 can trigger SERK3/BAK1-independent PTI. Silencing of SERK3/BAK1 in solanaceous plants resulted in reduced expression of brassinosteroid marker genes and enhanced PTI transcriptional responses to Pep-13 treatment. To prevent disease, pattern recognition receptors (PRRs) are responsible for detecting microbe-associated molecular patterns (MAMPs) to switch on plant innate immunity. SOMATIC EMBROYOGENESIS KINASE 3 (SERK3)/BRASSINOSTEROID INSENSITIVE 1-ASSOCIATED KINASE 1 (BAK1) is a well-characterized receptor-like kinase (RLK) that serves as a pivotal co-receptor with PRRs to activate immunity following recognition of MAMPs including flg22, EF-Tu, INF1 and XEG1...
November 28, 2018: Plant Cell Reports
Hiroaki Saika, Akiko Mori, Masaki Endo, Seiichi Toki
A successful example of transposon deletion via CRISPR/Cas9-mediated genome editing suggests a novel alternative approach to plant breeding. Transposition of transposable elements (TEs) can affect adjacent genes, leading to changes in genetic traits. Expression levels and patterns, splicing and epigenetic status, and function of genes located in, or near, the inserted/excised locus can be affected. Artificial modification of loci adjacent to TEs, or TEs themselves, by genome editing could mimic the translocation of TEs that occurs in nature, suggesting that it might be possible to produce novel plants by modification of TEs via genome editing...
November 21, 2018: Plant Cell Reports
Jian Wang, Hui-Xin Lin, Ping Su, Tong Chen, Juan Guo, Wei Gao, Lu-Qi Huang
We found that ApGGPPS1, ApGGPPS2, and ApGGPPS3 can convert IPP and DMAPP to GGPP. ApGGPPS2 is probably involved in andrographolide biosynthesis. ApGGPPS3 may be responsible for the synthesis of the cytosolic GGPP. Andrographis paniculata is a traditional herb for the treatment of sore throat, flu, upper respiratory tract infections and other disorders. In A. paniculata, GGPP is not only the precursor of andrographolide and its primary bioactive compounds, but also the precursor of chlorophylls, carotenoids, gibberellins, and abscisic acid, which are the biomolecules of photosynthesis, growth regulation and other physiological and ecological processes...
November 17, 2018: Plant Cell Reports
Md Abdur Razzak, JunMo Lee, Dong Wook Lee, Jeong Hee Kim, Hwan Su Yoon, Inhwan Hwang
Red alga, Gracilariopsis chorda, contains seven carbonic anhydrases that can be grouped into α-, β- and γ-classes. Carbonic anhydrases (CAHs) are metalloenzymes that catalyze the reversible hydration of CO2 . These enzymes are present in all living organisms and play roles in various cellular processes, including photosynthesis. In this study, we identified seven CAH genes (GcCAHs) from the genome sequence of the red alga Gracilariopsis chorda and characterized them at the molecular, cellular and biochemical levels...
November 16, 2018: Plant Cell Reports
Xiaoming Yu, Xinchao Meng, Yutong Liu, Xutong Wang, Tian-Jing Wang, Ai Zhang, Ning Li, Xin Qi, Bao Liu, Zheng-Yi Xu
Maize SWI3-type chromatin remodeler impacts alternative splicing contexts in response to osmotic stress by altering nucleosome density and affecting transcriptional elongation rate. Alternative splicing (AS) is commonly found in higher eukaryotes and is an important posttranscriptional regulatory mechanism to generate transcript diversity. AS has been widely accepted as playing essential roles in different biological processes including growth, development, signal transduction and responses to biotic and abiotic stresses in plants...
November 15, 2018: Plant Cell Reports
Xiaomeng Liu, Xiaohui Wang, Zexiong Chen, Jiabao Ye, Yongling Liao, Weiwei Zhang, Jie Chang, Feng Xu
Analysis of terpenoids content, transcriptome from Chamaemelum nobile showed that the content of the terpenoids in the roots was the highest and key genes involved in the terpenoids synthesis pathway were identified. Chamaemelum nobile is a widely used herbaceous medicinal plant rich in volatile oils, mainly composed of terpenoids. It is widely used in food, cosmetics, medicine, and other fields. In this study, we analyzed the transcriptome and the content and chemical composition of the terpenoids in different organs of C...
November 15, 2018: Plant Cell Reports
Florian Hahn, Vladimir Nekrasov
The CRISPR/Cas technology has recently become the tool of choice for targeted genome modification in plants and beyond. Although CRSIPR/Cas offers a rapid and facile way of introducing changes at genomic loci of interest, its application is associated with off-targeting, i.e. introduction of unintended mutations at off-target sites within the genome, which has been reported frequently in the mammalian field. Here we summarise the current knowledge on the precision of CRISPR/Cas in plant systems and provide a summary of state-of the-art strategies for avoiding off-target mutations, as well as unintended on-target changes, in plants...
November 13, 2018: Plant Cell Reports
K Sykłowska-Baranek, W Rymaszewski, M Gaweł, P Rokicki, M Pilarek, M Grech-Baran, J Hennig, A Pietrosiuk
Two lines of Taxus × media hairy roots harbouring or not the TXS transgene demonstrated diverse gene expression and taxane yield during cultivation in PFD-supported two liquid-phase culture system. Two lines of Taxus × media hairy roots were subjected to single or twice-repeated supplementation with methyl jasmonate, sodium nitroprusside, L-phenylalanine, and sucrose feeding. One line harboured transgene of taxadiene synthase (ATMA), while the second (KT) did not. Both hairy root lines were cultured in two-phase culture systems containing perfluorodecalin (PFD) in aerated or degassed form...
November 7, 2018: Plant Cell Reports
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