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Frontiers in Plant Science

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https://www.readbyqxmd.com/read/29780402/dark-septate-endophytic-fungi-increase-green-manure-15-n-recovery-efficiency-n-contents-and-micronutrients-in-rice-grains
#1
Carlos Vergara, Karla E C Araujo, Segundo Urquiaga, Claudete Santa-Catarina, Nivaldo Schultz, Ednaldo da Silva Araújo, Fabiano de Carvalho Balieiro, Gustavo R Xavier, Jerri É Zilli
An understanding of the interaction between rice and dark septate endophytic (DSE) fungi, under green fertilization, may lead to sustainable agricultural practices. Nevertheless, this interaction is still poorly understood. Therefore, in this study, we aimed to evaluate the accumulation of macro- and micronutrients, dry matter, and protein and N recovery efficiency from Canavalia ensiformis (L.)-15 N in rice inoculated with DSE fungi. An experiment under greenhouse conditions was conducted in a randomized complete block design comprising split-plots, with five replicates of rice plants potted in non-sterilized soil...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29780401/molecular-characterization-of-squamosa-promoter-binding-protein-like-spl-gene-family-in-betula-luminifera
#2
Xiu-Yun Li, Er-Pei Lin, Hua-Hong Huang, Ming-Yue Niu, Zai-Kang Tong, Jun-Hong Zhang
As a major family of plant-specific transcription factors, SQUAMOSA PROMOTER BINDING PROTEIN-LIKE ( SPL ) genes play vital regulatory roles in plant growth, development and stress responses. In this study, 18 SPL genes were identified and cloned from Betula luminifera . Two zinc finger-like structures and a nuclear location signal (NLS) segments were existed in the SBP domains of all BlSPLs. Phylogenetic analysis showed that these genes were clustered into nine groups (group I-IX). The intron/exon structure and motif composition were highly conserved within the same group...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29780400/led-lighting-modification-of-growth-metabolism-yield-and-flour-composition-in-wheat-by-spectral-quality-and-intensity
#3
István Monostori, Márk Heilmann, Gábor Kocsy, Marianna Rakszegi, Mohamed Ahres, Susan B Altenbach, Gabriella Szalai, Magda Pál, Dávid Toldi, Livia Simon-Sarkadi, Noémi Harnos, Gábor Galiba, Éva Darko
The use of light-emitting diode (LED) technology for plant cultivation under controlled environmental conditions can result in significant reductions in energy consumption. However, there is still a lack of detailed information on the lighting conditions required for optimal growth of different plant species and the effects of light intensity and spectral composition on plant metabolism and nutritional quality. In the present study, wheat plants were grown under six regimens designed to compare the effects of LED and conventional fluorescent lights on growth and development, leaf photosynthesis, thiol and amino acid metabolism as well as grain yield and flour quality of wheat...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29780399/oxidative-stress-and-aberrant-programmed-cell-death-are-associated-with-pollen-abortion-in-isonuclear-alloplasmic-male-sterile-wheat
#4
Zihan Liu, Xiaoyi Shi, Sha Li, Lingli Zhang, Xiyue Song
Cytoplasmic male sterility is crucial for the utilization of hybrid heterosis and it possibly occurs in parallel with tapetal programmed cell death (PCD) and oxidative metabolism responses. However, little is known about the mechanisms that underlie pollen abortion in wheat. Therefore, we obtained two isonuclear alloplasmic male sterile lines (IAMSLs) with Aegilops kotschyi and Ae. juvenalis cytoplasm. Compared with the maintainer line, cytochemical analyses of the anthers demonstrated that the IAMSLs exhibited anomalous tapetal PCD and organelles, with premature PCD in K87B1-706A and delayed PCD in Ju87B1-706A...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29780398/-fip1-plays-an-important-role-in-nitrate-signaling-and-regulates-cipk8-and-cipk23-expression-in-arabidopsis
#5
Chao Wang, Wenjing Zhang, Zehui Li, Zhen Li, Yingjun Bi, Nigel M Crawford, Yong Wang
Unraveling the molecular mechanisms of nitrate regulation and deciphering the underlying genetic network is vital for elucidating nitrate uptake and utilization in plants. Such knowledge could lead to the improvement of nitrogen-use efficiency in agriculture. Here, we report that the FIP1 gene (factor interacting with poly(A) polymerase 1) plays an important role in nitrate signaling in Arabidopsis thaliana. FIP1 encodes a putative core component of the polyadenylation factor complex. We found that FIP1 interacts with the cleavage and polyadenylation specificity factor 30-L (CPSF30-L), which is also an essential player in nitrate signaling...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29780397/why-does-not-the-leaf-weight-area-allometry-of-bamboos-follow-the-3-2-power-law
#6
Shuyan Lin, Lijuan Shao, Cang Hui, Yu Song, Gadi V P Reddy, Johan Gielis, Fang Li, Yulong Ding, Qiang Wei, Peijian Shi
The principle of similarity (Thompson, 1917) states that the weight of an organism follows the 3/2-power law of its surface area and is proportional to its volume on the condition that the density is constant. However, the allometric relationship between leaf weight and leaf area has been reported to greatly deviate from the 3/2-power law, with the irregularity of leaf density largely ignored for explaining this deviation. Here, we choose 11 bamboo species to explore the allometric relationships among leaf area ( A ), density (ρ), length ( L ), thickness ( T ), and weight ( W )...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29780396/effects-of-antimony-stress-on-photosynthesis-and-growth-of-acorus-calamus
#7
Xiujie Zhou, Chongyu Sun, Pengfei Zhu, Fei Liu
This study was aimed to explore that effects of Sb on physiological parameters of Acorus calamus and the possibility of using A. calamus as a remediation plant. A. calamus potted experiments were conducted using different concentrations (0, 250, 500, 1000, and 2000 mg/kg) of antimony potassium tartrate (Sb3+ ) (marked as CK, T1 , T2 , T3 , and T4 , respectively) and potassium pyroantimonate (Sb5+ ) (marked as CK, T'1 , T'2 , T'3 , and T'4 , respectively). The effects of Sb stress (Sb3+ and Sb5+ ) on leaf photosynthetic pigments, biomass, photosynthetic characteristics and chlorophyll fluorescence parameters of potted A...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29780395/genetic-analysis-of-fusarium-head-blight-resistance-in-cimmyt-bread-wheat-line-c615-using-traditional-and-conditional-qtl-mapping
#8
Xin Yi, Jingye Cheng, Zhengning Jiang, Wenjing Hu, Tongde Bie, Derong Gao, Dongsheng Li, Ronglin Wu, Yuling Li, Shulin Chen, Xiaoming Cheng, Jian Liu, Yong Zhang, Shunhe Cheng
Fusarium head blight (FHB) is a destructive wheat disease present throughout the world, and host resistance is an effective and economical strategy used to control FHB. Lack of adequate resistance resource is still a main bottleneck for FHB genetics and wheat breeding research. The synthetic-derived bread wheat line C615, which does not carry the Fhb1 gene, is a promising source of FHB resistance for breeding. A population of 198 recombinant inbred lines (RILs) produced by crossing C615 with the susceptible cultivar Yangmai 13 was evaluated for FHB response using point and spray inoculations...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774047/genome-sequencing-and-analysis-of-the-peanut-b-genome-progenitor-arachis-ipaensis
#9
Qing Lu, Haifen Li, Yanbin Hong, Guoqiang Zhang, Shijie Wen, Xingyu Li, Guiyuan Zhou, Shaoxiong Li, Hao Liu, Haiyan Liu, Zhongjian Liu, Rajeev K Varshney, Xiaoping Chen, Xuanqiang Liang
Peanut ( Arachis hypogaea L.), an important leguminous crop, is widely cultivated in tropical and subtropical regions. Peanut is an allotetraploid, having A and B subgenomes that maybe have originated in its diploid progenitors Arachis duranensis (A-genome) and Arachis ipaensis (B-genome), respectively. We previously sequenced the former and here present the draft genome of the latter, expanding our knowledge of the unique biology of Arachis . The assembled genome of A. ipaensis is ~1.39 Gb with 39,704 predicted protein-encoding genes...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774046/identification-of-rice-genes-associated-with-enhanced-cold-tolerance-by-comparative-transcriptome-analysis-with-two-transgenic-rice-plants-overexpressing-dacbf4-or-dacbf7-isolated-from-antarctic-flowering-plant-deschampsia-antarctica
#10
Mi Young Byun, Li Hua Cui, Jungeun Lee, Hyun Park, Andosung Lee, Woo Taek Kim, Hyoungseok Lee
Few plant species can survive in Antarctica, the harshest environment for living organisms. Deschampsia antarctica is the only natural grass species to have adapted to and colonized the maritime Antarctic. To investigate the molecular mechanism of the Antarctic adaptation of this plant, we identified and characterized D. antarctica C-repeat binding factor 4 ( DaCBF4 ), which belongs to monocot CBF group IV. The transcript level of DaCBF4 in D. antarctica was markedly increased by cold and dehydration stress...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774045/transposon-derived-non-coding-rnas-and-their-function-in-plants
#11
REVIEW
Jungnam Cho
Transposable elements (TEs) are often regarded as harmful genomic factors and indeed they are strongly suppressed by the epigenetic silencing mechanisms. On the other hand, the mobilization of TEs brings about variability of genome and transcriptome which are essential in the survival and evolution of the host species. The vast majority of such controlling TEs influence the neighboring genes in cis by either promoting or repressing the transcriptional activities. Although TEs are highly repetitive in the genomes and transcribed in specific stress conditions or developmental stages, the trans -acting regulatory roles of TE-derived RNAs have been rarely studied...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774044/identification-and-functional-characterization-of-sugarcane-invertase-inhibitor-shinh1-a-potential-candidate-for-reducing-pre-and-post-harvest-loss-of-sucrose-in-sugarcane
#12
Suresha G Shivalingamurthy, Raveendra Anangi, Sundaravelpandian Kalaipandian, Donna Glassop, Glenn F King, Anne L Rae
In sugarcane, invertase enzymes play a key role in sucrose accumulation and are also involved in futile reactions where sucrose is continuously degraded during the pre- and post-harvest period, thereby reducing sugar yield and recovery. Invertase inhibitor (INVINH) proteins play a key role in post-translation regulation of plant invertases through which sucrose hydrolysis is controlled. INVINH proteins are small (18 kDa) members of the pectin methylesterase inhibitor superfamily and they are moderately conserved across plants...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774043/integration-of-the-pokeweed-mirna-and-mrna-transcriptomes-reveals-targeting-of-jasmonic-acid-responsive-genes
#13
Kira C M Neller, Alexander Klenov, Juan C Guzman, Katalin A Hudak
The American pokeweed plant, Phytolacca americana , displays broad-spectrum resistance to plant viruses and is a heavy metal hyperaccumulator. However, little is known about the regulation of biotic and abiotic stress responses in this non-model plant. To investigate the control of miRNAs in gene expression, we sequenced the small RNA transcriptome of pokeweed treated with jasmonic acid (JA), a hormone that mediates pathogen defense and stress tolerance. We predicted 145 miRNAs responsive to JA, most of which were unique to pokeweed...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774042/assessing-the-efficiency-of-phenotyping-early-traits-in-a-greenhouse-automated-platform-for-predicting-drought-tolerance-of-soybean-in-the-field
#14
Laura S Peirone, Gustavo A Pereyra Irujo, Alejandro Bolton, Ignacio Erreguerena, Luis A N Aguirrezábal
Conventional field phenotyping for drought tolerance, the most important factor limiting yield at a global scale, is labor-intensive and time-consuming. Automated greenhouse platforms can increase the precision and throughput of plant phenotyping and contribute to a faster release of drought tolerant varieties. The aim of this work was to establish a framework of analysis to identify early traits which could be efficiently measured in a greenhouse automated phenotyping platform, for predicting the drought tolerance of field grown soybean genotypes...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774041/report-on-the-current-inventory-of-the-toolbox-for-plant-cell-wall-analysis-proteinaceous-and-small-molecular-probes
#15
REVIEW
Maja G Rydahl, Aleksander R Hansen, Stjepan K Kračun, Jozef Mravec
Plant cell walls are highly complex structures composed of diverse classes of polysaccharides, proteoglycans, and polyphenolics, which have numerous roles throughout the life of a plant. Significant research efforts aim to understand the biology of this cellular organelle and to facilitate cell-wall-based industrial applications. To accomplish this, researchers need to be provided with a variety of sensitive and specific detection methods for separate cell wall components, and their various molecular characteristics in vitro as well as in situ ...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774040/-oligocellula1-high-expression-of-osmotically-responsive-genes15-promotes-cell-proliferation-with-histone-deacetylase9-and-powerdress-during-leaf-development-in-arabidopsis-thaliana
#16
Marina Suzuki, Nanae Shinozuka, Tomohiro Hirakata, Miyuki T Nakata, Taku Demura, Hirokazu Tsukaya, Gorou Horiguchi
Organ size regulation is dependent on the precise spatial and temporal regulation of cell proliferation and cell expansion. A number of transcription factors have been identified that play a key role in the determination of aerial lateral organ size, but their functional relationship to various chromatin modifiers has not been well understood. To understand how leaf size is regulated, we previously isolated the oligocellula1 ( oli1 ) mutant of Arabidopsis thaliana that develops smaller first leaves than the wild type (WT) mainly due to a reduction in the cell number...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774039/a-membrane-bound-nac-like-transcription-factor-osntl5-represses-the-flowering-in-oryza-sativa
#17
Siyi Guo, Shaojun Dai, Prashant K Singh, Hongyan Wang, Yanan Wang, Jeanie L H Tan, Wanyi Wee, Toshiro Ito
In spite of short-day (SD) nature, rice ( Oryza sativa ) shares a conserved photoperiodic network for flowering control with long-day plants like Arabidopsis thaliana. Flowering or heading is an important agronomic trait in rice. NAC transcription factors (TFs) are well-conserved and one of the largest families of plant TFs. However, their function in flowering or heading time is not well-known yet. A preferential expression of a membrane-bound NAC-like TF OsNTL5 in developing leaves and panicles of rice indicated to us its putative role in flowering...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774038/altered-expression-of-the-malate-permeable-anion-channel-osalmt4-reduces-the-growth-of-rice-under-low-radiance
#18
Jie Liu, Muyun Xu, Gonzalo M Estavillo, Emmanuel Delhaize, Rosemary G White, Meixue Zhou, Peter R Ryan
We examined the function of OsALMT4 in rice ( Oryza sativa L.) which is a member of the aluminum-activated malate transporter family. Previous studies showed that OsALMT4 localizes to the plasma membrane and that expression in transgenic rice lines results in a constitutive release of malate from the roots. Here, we show that OsALMT4 is expressed widely in roots, shoots, flowers, and grain but not guard cells. Expression was also affected by ionic and osmotic stress, light and to the hormones ABA, IAA, and salicylic acid...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774037/plant-sediment-interactions-in-salt-marshes-an-optode-imaging-study-of-o-2-ph-and-co-2-gradients-in-the-rhizosphere
#19
Ketil Koop-Jakobsen, Peter Mueller, Robert J Meier, Gregor Liebsch, Kai Jensen
In many wetland plants, belowground transport of O2 via aerenchyma tissue and subsequent O2 loss across root surfaces generates small oxic root zones at depth in the rhizosphere with important consequences for carbon and nutrient cycling. This study demonstrates how roots of the intertidal salt-marsh plant Spartina anglica affect not only O2 , but also pH and CO2 dynamics, resulting in distinct gradients of O2 , pH, and CO2 in the rhizosphere. A novel planar optode system (VisiSens TD® , PreSens GmbH) was used for taking high-resolution 2D-images of the O2 , pH, and CO2 distribution around roots during alternating light-dark cycles...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774036/the-pattern-and-distribution-of-induced-mutations-in-j-curcas-using-reduced-representation-sequencing
#20
Fatemeh Maghuly, Stephan Pabinger, Julie Krainer, Margit Laimer
Mutagenesis in combination with Genotyping by Sequencing (GBS) is a powerful tool for introducing variation, studying gene function and identifying causal mutations underlying phenotypes of interest in crop plant genomes. About 400 million paired-end reads were obtained from 82 ethylmethane sulfonate (EMS) induced mutants and 14 wild-type accessions of Jatropha curcas for the detection of Single Nucleotide Polymorphisms (SNPs) and Insertion/Deletions (InDels) by two different approaches (nGBS and ddGBS) on an Illumina HiSeq 2000 sequencer...
2018: Frontiers in Plant Science
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