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Molecular Plant

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https://www.readbyqxmd.com/read/28919533/engineering-non-transgenic-gynoecious-cucumber-using-an-improved-transformation-protocol-and-optimized-crispr-cas9-system
#1
LETTER
Bowen Hu, Dawei Li, Xin Liu, Jingjing Qi, Dongli Gao, Shuqiao Zhao, Sanwen Huang, Jinjing Sun, Li Yang
No abstract text is available yet for this article.
September 14, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28917590/karyotype-stability-and-unbiased-fractionation-in-the-paleo-allotetraploid-cucurbita-genomes
#2
Honghe Sun, Shan Wu, Guoyu Zhang, Chen Jiao, Shaogui Guo, Yi Ren, Jie Zhang, Haiying Zhang, Guoyi Gong, Zhangcai Jia, Fan Zhang, Jiaxing Tian, William J Lucas, Jeff J Doyle, Haizhen Li, Zhangjun Fei, Yong Xu
The Cucurbita genus contains several economically important species in the Cucurbitaceae family. Here we report high-quality genome sequences of C. maxima and C. moschata and provide evidence supporting an allotetraploidization event in Cucurbita. We are able to partition the genome into two homoeologous subgenomes based on different genetic distances to melon, cucumber and watermelon in the Benincaseae tribe. We estimate that the two diploid progenitors successively diverged from Benincaseae around 31 and 26 million years ago (Mya), and the allotetraploidization happened at some point between 26 Mya and 3 Mya, the estimated date when C...
September 13, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28917589/a-novel-rgl2-dof6-complex-contributes-to-primary-seed-dormancy-in-arabidopsis-thaliana-by-regulating-a-gata-transcription-factor
#3
Pratibha Ravindran, Vivek Verma, Petra Stamm, Prakash P Kumar
The DELLA protein RGA-LIKE2 (RGL2) is a key transcriptional repressor of gibberellic acid (GA) signaling that regulates seed germination. We identified GATA12, a gene encoding a GATA-type zinc finger transcription factor, as one of the downstream targets of RGL2 in Arabidopsis thaliana. Our data show that freshly harvested (unstratified) seeds of GATA12 antisense suppression lines have reduced dormancy than the wild type, while ectopic expression lines show enhanced seed dormancy. We show that GATA12 transcription is negatively regulated by GA and its transcript levels decline dramatically under dormancy-breaking conditions such as dry storage and cold-stratification of seeds...
September 13, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28893715/class-i-and-class-ii-tcp-transcription-factors-modulate-soc1-dependent-flowering-at-multiple-levels
#4
LETTER
Leandro E Lucero, Pablo A Manavella, Diana E Gras, Federico D Ariel, Daniel H Gonzalez
No abstract text is available yet for this article.
September 8, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28893714/transcriptional-regulation-of-the-ambient-temperature-response-by-h2a-z-nucleosomes-and-hsf1-transcription-factors-in-arabidopsis
#5
Sandra Cortijo, Varodom Charoensawan, Anna Brestovitsky, Ruth Buning, Charles Ravarani, Daniela Rhodes, John van Noort, Katja E Jaeger, Philip A Wigge
Temperature influences the distribution, range and phenology of plants. The key transcriptional activators of the heat shock response in eukaryotes, the heat shock factors (HSFs), have undergone a large-scale gene amplification in plants. While HSFs are central in heat stress responses, their role in ambient temperature changes is less well understood. We show here that the warm ambient temperature transcriptome is dependent upon the HSFA1 clade of Arabidopsis HSFs, which cause a rapid and dynamic eviction of H2A...
September 8, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28893713/next-generation-plant-metabolic-engineering-inspired-by-an-ancient-chinese-irrigation-system
#6
REVIEW
Rao Fu, Cathie Martin, Yang Zhang
Specialized secondary metabolites serve not only to protect plants against abiotic and biotic challenges, but have also been used extensively by humans to combat diseases. Due to the importance of medicinal plants for health, we need to find new and sustainable ways to produce their specialized metabolites. In addition to direct extraction, recent progress in metabolic engineering of plants offers alternative supply options. We argue that metabolic engineering for the production of some secondary metabolites in plants may have distinct advantages over microbial production platforms and we propose new approaches to plant metabolic engineering, inspired by an ancient Chinese irrigation system...
September 8, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28866081/mapping-the-arabidopsis-metabolic-landscape-by-untargeted-metabolomics-at-different-environmental-conditions
#7
Si Wu, Takayuki Tohge, Álvaro Cuadros-Inostroza, Hao Tong, Hezi Tenenboim, Rik Kooke, Michaël Méret, Joost B Keurentjes, Zoran Nikoloski, Alisdair R Fernie, Lothar Willmitzer, Yariv Brotman
Metabolic genome-wide association studies (mGWAS), whereupon metabolite levels are regarded as traits, can help unravel the genetic basis of metabolic networks. 309 Arabidopsis accessions were grown under two independent environmental conditions (control and stress) and subjected to untargeted LC-MS-based metabolomics; levels of the obtained hydrophilic metabolites were used in GWAS. Our two-condition-based GWAS for more than 3,000 semi-polar metabolites resulted in the detection of 123 highly resolved metabolite quantitative trait loci (mQTL) (p ≤ 1...
August 30, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28859907/release-recycle-rebuild-cell-wall-remodeling-autodegradation-and-sugar-salvage-for-new-wall-biosynthesis-during-plant-development
#8
REVIEW
William J Barnes, Charles T Anderson
Plant cell walls contain complex polysaccharide networks and regulate plant growth, development, mechanics, cell-cell communication and adhesion, and defense. Despite conferring rigidity to support plant structures, the cell wall is a dynamic extracellular matrix that is modified, reorganized, and degraded to tightly control its properties during growth and development. Far from being a terminal carbon sink, many cell wall polymers can be degraded and recycled by plant cells, either via direct re-incorporation by transglycosylation or via internalization and metabolic salvage of wall-derived sugars to produce new precursors for wall synthesis...
August 28, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28844521/direct-modulation-of-the-guard-cell-outward-rectifying-potassium-channel-gork-by-abscisic-acid
#9
LETTER
Amanda Ooi, Fouad Lemtiri-Chlieh, Aloysius Wong, Christoph Gehring
No abstract text is available yet for this article.
August 24, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28842248/two-cyp82d-enzymes-function-as-flavone-hydroxylases-in-the-biosynthesis-of-root-specific-4-deoxyflavones-in-scutellaria-baicelensis
#10
Qing Zhao, Meng-Ying Cui, Olesya Levsh, Dongfeng Yang, Jie Liu, Jie Li, Lionel Hill, Lei Yang, Yonghong Hu, Jing-Ke Weng, Xiao-Ya Chen, Cathie Martin
Baicalein, wogonin and their glycosides are major bioactive compounds found in the medicinal plant Scutellaria baicalensis Georgi. These flavones can induce apoptosis in a variety of cancer cell lines but have no effect on normal cells. Furthermore, they have many additional benefits for human health, such as anti-oxidant, antiviral, and liver-protective properties. We describe isolation and characterization of two CYP450 enzymes (SbCYP82D1.1 and SbCYP82D2) that function as the flavone 6-hydroxylase (F6H) and flavone 8-hydroxylase (F8H), respectively, in S...
August 22, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28838703/pacbio-sequencing-reveals-transposable-element-as-a-key-contributor-to-genomic-plasticity-and-virulence-variation-in-magnaporthe-oryzae
#11
LETTER
Jiandong Bao, Meilian Chen, Zhenhui Zhong, Wei Tang, Lianyu Lin, Xingtan Zhang, Haolang Jiang, Deyu Zhang, Chenyong Miao, Haibao Tang, Jishen Zhang, Guodong Lu, Ray Ming, Justice Norvienyeku, Baohua Wang, Zonghua Wang
No abstract text is available yet for this article.
August 21, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28827172/the-bhlh-transcription-factors-myc2-myc3-and-myc4-are-required-for-jasmonate-mediated-inhibition-of-flowering-in-arabidopsis
#12
LETTER
Houping Wang, Yang Li, Jinjing Pan, Dengji Lou, Yanru Hu, Diqiu Yu
No abstract text is available yet for this article.
August 18, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28827168/flavonoids-and-ros-play-opposing-roles-in-mediating-pollination-in-ornamental-kale-brassica-oleracea-var-acephala
#13
LETTER
Xingguo Lan, Jia Yang, Abhinandan Kumar, Yuzhe Nie, Xiaoyu Li, Yuhua Li, Marcus A Samuel
No abstract text is available yet for this article.
August 18, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28827167/breeding-major-cereal-grains-through-the-lens-of-nutrition-sensitivity
#14
REVIEW
Shu Yu, Li Tian
Cereal grains are the common food staples that collectively provide over 50% of dietary calories for the world's population. Although the Green Revolution has greatly increased the yield of commercial cereal crops, they often lack nutrients essential for human health in the edible tissues. In developing nutrition-sensitive agriculture, the nutritional quality of cereal grains has been a target for improvement using breeding and biotechnology approaches. This review examines recent progress on biofortification of micronutrients (provitamin A and folates) and an essential amino acid (lysine) in three major cereal grains, wheat, rice and maize, through plant breeding...
August 18, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28803900/dissecting-the-genetic-basis-of-grain-shape-and-chalkiness-traits-in-hybrid-rice-using-multiple-collaborative-populations
#15
LETTER
Junyi Gong, Jiashun Miao, Yan Zhao, Qiang Zhao, Qi Feng, Qilin Zhan, Benyi Cheng, Junhui Xia, Xuehui Huang, Shihua Yang, Bin Han
No abstract text is available yet for this article.
August 10, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28827193/auxin-binding-protein-1-reinforces-resistance-to-sugarcane-mosaic-virus-in-maize
#16
LETTER
Pengfei Leng, Qing Ji, Torben Asp, Ursula K Frei, Christina R Ingvardsen, Yongzhong Xing, Bruno Studer, Margaret Redinbaugh, Mark Jones, Priyanka Gajjar, Sisi Liu, Fei Li, Guangtang Pan, Mingliang Xu, Thomas Lübberstedt
No abstract text is available yet for this article.
August 5, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28782720/alternative-polyadenylation-of-the-sense-transcript-controls-antisense-transcription-of-delay-of-germination-1-in-arabidopsis
#17
LETTER
Justyna Kowalczyk, Malgorzata Palusinska, Agata Wroblewska-Swiniarska, Zbigniew Pietras, Lukasz Szewc, Jakub Dolata, Artur Jarmolowski, Szymon Swiezewski
No abstract text is available yet for this article.
August 3, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28866080/the-tartary-buckwheat-genome-provides-insights%C3%A2-into-rutin-biosynthesis-and-abiotic-stress%C3%A2-tolerance
#18
Lijun Zhang, Xiuxiu Li, Bin Ma, Qiang Gao, Huilong Du, Yuanhuai Han, Yan Li, Yinghao Cao, Ming Qi, Yaxin Zhu, Hongwei Lu, Mingchuan Ma, Longlong Liu, Jianping Zhou, Chenghu Nan, Yongjun Qin, Jun Wang, Lin Cui, Huimin Liu, Chengzhi Liang, Zhijun Qiao
Tartary buckwheat (Fagopyrum tataricum) is an important pseudocereal crop that is strongly adapted to growth in adverse environments. Its gluten-free grain contains complete proteins with a well-balanced composition of essential amino acids and is a rich source of beneficial phytochemicals that provide significant health benefits. Here, we report a high-quality, chromosome-scale Tartary buckwheat genome sequence of 489.3 Mb that is assembled by combining whole-genome shotgun sequencing of both Illumina short reads and single-molecule real-time long reads, sequence tags of a large DNA insert fosmid library, Hi-C sequencing data, and BioNano genome maps...
September 12, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28827171/the-g-protein-%C3%AE-subunit-agb1-promotes-hypocotyl-elongation-through-inhibiting-transcription-activation-function-of-bbx21-in%C3%A2-arabidopsis
#19
Dong-Bei Xu, Shi-Qing Gao, Ya-Nan Ma, Xiao-Ting Wang, Lu Feng, Lian-Cheng Li, Zhao-Shi Xu, Yao-Feng Chen, Ming Chen, You-Zhi Ma
Hypocotyl development in Arabidopsis thaliana is regulated by light and endogenous hormonal cues, making it an ideal model to study the interplay between light and endogenous growth regulators. BBX21, a B-box (BBX)-like zinc-finger transcription factor, integrates light and abscisic acid signals to regulate hypocotyl elongation in Arabidopsis. Heterotrimeric G-proteins are pivotal regulators of plant development. The short hypocotyl phenotype of the G-protein β-subunit (AGB1) mutant (agb1-2) has been previously identified, but the precise role of AGB1 in hypocotyl elongation remains enigmatic...
September 12, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28827170/modulation-of-aba-signaling-by-altering-vxg%C3%AE-l-motif-of-pp2cs-in-oryza-sativa
#20
Seungsu Han, Myung Ki Min, Su-Youn Lee, Chae Woo Lim, Nikita Bhatnagar, Yeongmok Lee, Donghyuk Shin, Ka Young Chung, Sung Chul Lee, Beom-Gi Kim, Sangho Lee
The abscisic acid (ABA) signaling pathway is regulated by clade A type 2C protein phosphatases (PP2CAs) in plants. In the presence of ABA, PP2Cs release stress/ABA-activated protein kinases by binding to ABA-bound receptors (PYL/RCARs) for activation. Although the wedging tryptophan in PP2Cs is critical in the interaction with PYL/RCARs in Arabidopsis and rice, it remains elusive as to how other interface regions are involved in the interaction. Here, we report the identification of a conserved region on PP2Cs, termed the VxGΦL motif, which modulates the interaction with PYL/RCARs through its second and fourth residues...
September 12, 2017: Molecular Plant
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