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Plant Cell

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https://www.readbyqxmd.com/read/28928118/know-your-histone-zip-code-flowering-time-and-phosphorylation-of-histone-h2a-on-serine-95
#1
Patrice A Salomé
No abstract text is available yet for this article.
September 19, 2017: Plant Cell
https://www.readbyqxmd.com/read/28916613/time-intensive-transcriptomics-reveal-temporal-patterns-in-the-jasmonic-acid-gene-regulatory-network
#2
Sonali Roy
No abstract text is available yet for this article.
September 15, 2017: Plant Cell
https://www.readbyqxmd.com/read/28912348/a-time-to-divide-and-a-time-to-expand-histone-deacetylases-flip-a-gibberellin-oxidase-mediated-switch-in-root-meristem-cells
#3
Jennifer Mach
No abstract text is available yet for this article.
September 14, 2017: Plant Cell
https://www.readbyqxmd.com/read/28912347/intra-family-protein-interactions-contribute-to-dna-localization
#4
Diarmuid O'Maoileidigh
No abstract text is available yet for this article.
September 14, 2017: Plant Cell
https://www.readbyqxmd.com/read/28899982/correction-transcriptome-wide-identification-of-rna-targets-of-arabidopsis-serine-arginine-rich45-uncovers-the-unexpected-roles-of-this-rna-binding-protein-in-rna-processing
#5
https://www.readbyqxmd.com/read/28899981/evidence-for-a-role-of-anac082-as-a-ribosomal-stress-response-mediator-leading-to-growth-defects-and-developmental-alterations-in-arabidopsis
#6
Iwai Ohbayashi, Chung-Yi Lin, Naoki Shinohara, Yoko Matsumura, Yasunori Machida, Gorou Horiguchi, Hirokazu Tsukaya, Munetaka Sugiyama
Ribosome-related mutants in Arabidopsis thaliana share several notable characteristics regarding growth and development, which implies the existence of a common pathway that responds to disorders in ribosome biogenesis. As a first step to explore this pathway genetically, we screened a mutagenized population of root initiation defective 2 (rid2), a temperature-sensitive mutant that is impaired in pre-rRNA processing, and isolated suppressor of root initiation defective two 1 (sriw1), a suppressor mutant in which the defects of cell proliferation observed in rid2 at the restrictive temperature was markedly rescued...
September 12, 2017: Plant Cell
https://www.readbyqxmd.com/read/28893852/root-architecture-shaping-by-the-environment-is-orchestrated-by-dynamic-gene-expression-in-space-and-time
#7
Liam Walker, Clare Boddington, Dafyd Jenkins, Ying Wang, Jesper T Grønlund, Jo Hulsmans, Sanjeev Kumar, Dhaval Patel, Jonathan D Moore, Anthony Carter, Siva Samavedam, Giovanni Bomono, David S Hersh, Gloria M Coruzzi, Nigel J Burroughs, Miriam L Gifford
Shaping of root architecture is a quintessential developmental response that involves the concerted action of many different cell types, is highly dynamic and underpins root plasticity. To determine to what extent the environmental regulation of lateral root development is a product of cell type preferential activities, we tracked transcriptomic responses to two different treatments that both change root development in Arabidopsis thaliana, at an unprecedented level of temporal detail. We found that individual transcripts are expressed with a very high degree of temporal and spatial specificity, yet biological processes are commonly regulated, in a mechanism we term response non-redundancy...
September 11, 2017: Plant Cell
https://www.readbyqxmd.com/read/28887406/maize-npf6-proteins-are-homologs-of-arabidopsis-chl1-that-are-selective-for-both-nitrate-and-chloride
#8
Zhengyu Wen, Stephen Tyerman, Julie Dechorgnat, Evgenia Ovchinnikova, Kanwarpal Dhugga, Brent N Kaiser
Nitrate uptake by plant cells requires both high and low-affinity transport activities. Arabidopsis (Arabidopsis thaliana, At) nitrate transporter 1/peptide transporter family (NPF) 6.3 is a dual-affinity plasma membrane transport protein that has both high and low-affinity functions. At-NPF6.3 imports and senses nitrate and is regulated by phosphorylation at Thr-101 (T101). A detailed functional analysis of two maize (Zea mays, Zm) homologs of At-NPF6.3 (Zm-NPF6.6 and Zm-NPF6.4) showed that Zm-NPF6.6 was a pH dependent non-biphasic high-affinity nitrate-specific transport protein...
September 8, 2017: Plant Cell
https://www.readbyqxmd.com/read/28887405/phosphorylation-of-phosphoenolpyruvate-carboxylase-is-essential-for-maximal-and-sustained-dark-co2-fixation-and-core-circadian-clock-operation-in-the-obligate-crassulacean-acid-metabolism-species-kalancho%C3%A3-fedtschenkoi
#9
Susanna F Boxall, Louisa V Dever, Jana Knerova, Peter D Gould, James Hartwell
Phosphoenolpyruvate carboxylase (PPC; EC 4.1.1.31) catalyzes primary nocturnal CO2 fixation in Crassulacean acid metabolism (CAM) species. CAM PPC is regulated post-translationally by a circadian clock controlled protein kinase called phosphoenolpyruvate carboxylase kinase (PPCK). PPCK phosphorylates PPC during the dark period, reducing its sensitivity to feedback inhibition by malate, and thus enhancing nocturnal CO2 fixation to stored malate. Here, we report the generation and characterization of transgenic RNAi lines of the obligate CAM species Kalanchoë fedtschenkoi with reduced levels of KfPPCK1 transcripts...
September 8, 2017: Plant Cell
https://www.readbyqxmd.com/read/28887404/flowering-versus-runnering-uncovering-the-protein-behind-a-trait-that-matters-in-strawberry
#10
Jennifer A Lockhart
No abstract text is available yet for this article.
September 8, 2017: Plant Cell
https://www.readbyqxmd.com/read/28874511/retraction-arabidopsis-augmin-subunit-8-is-a-microtubule-plus-end-binding-protein-that-promotes-microtubule-reorientation-in-hypocotyls
#11
https://www.readbyqxmd.com/read/28874510/some-like-it-hot-protein-translation-and-heat-stress-in-plants
#12
Patrice A Salomé
No abstract text is available yet for this article.
September 5, 2017: Plant Cell
https://www.readbyqxmd.com/read/28874509/the-maize-imprinted-gene-floury3-encodes-a-platz-protein-required-for-trna-and-5s-rrna-transcription-through-interaction-with-rna-polymerase-iii
#13
Qi Li, Jiechen Wang, Jianwei Ye, Xixi Zheng, Xiaoli Xiang, Changsheng Li, Miaomiao Fu, Qiong Wang, Zhi-Yong Zhang, Yongrui Wu
Maize (Zea mays) floury3 (fl3) is a classic semi-dominant negative mutant that exhibits severe defects in the endosperm but fl3 plants otherwise appear normal. We cloned the fl3 gene and determined that it encodes a PLATZ (plant AT-rich sequence- and zinc-binding) protein. The mutation in fl3 resulted in an Asn to His replacement in the conserved PLATZ domain, creating a dominant allele. Fl3 is specifically expressed in starchy endosperm cells and regulated by genomic imprinting, which leads to the suppressed expression of fl3 when transmitted through the male, perhaps as a consequence the semi-dominant behavior...
September 5, 2017: Plant Cell
https://www.readbyqxmd.com/read/28874508/aba-induced-stomatal-closure-involves-almt4-a-phosphorylation-dependent-vacuolar-anion-channel-of-arabidopsis
#14
Cornelia Eisenach, Ulrike Baetz, Nicola V Huck, Jingbo Zhang, Alexis De Angeli, Gerold Beckers, Enrico Martinoia
Stomatal pores are formed between a pair of guard cells, and allow plant uptake of CO2 and water evaporation. Their aperture depends on changes in osmolyte concentration of guard cell vacuoles, specifically of K+ and Mal2-. Efflux of Mal2- from the vacuole is required for stomatal closure; however, it is not clear how the anion is released. Here we report the identification of ALMT4 (ALUMINIUM ACTIVATED MALATE TRANSPORTER 4) as an Arabidopsis thaliana ion channel that can mediate Mal2- release from the vacuole and is required for stomatal closure in response to abscisic acid (ABA)...
September 5, 2017: Plant Cell
https://www.readbyqxmd.com/read/28874507/a-specific-gibberellin-20-oxidase-dictates-the-flowering-runnering-decision-in-diploid-strawberry
#15
Tracey Tenreira, Maria Joao Pimenta Lange, Theo Lange, Cécile Bres, Marc Labadie, Amparo Monfort, Michel Hernould, Christophe Rothan, Beatrice Denoyes
Asexual and sexual reproduction occur jointly in many angiosperms. Stolons (elongated stems) are used for asexual reproduction in the crop species potato (Solanum tuberosum) and strawberry (Fragaria spp.), where they produce tubers and clonal plants, respectively. In strawberry, stolon production is essential for vegetative propagation at the expense of fruit yield, but the underlying molecular mechanisms are unknown. Here, we show that the stolon-deficiency trait of the runnerless (r) natural mutant in woodland diploid strawberry (Fragaria vesca) is due to a deletion in the active site of a gibberellin (GA) 20-oxidase (GA20ox) gene, which is expressed primarily in the axillary meristem dome and primordia and in developing stolons...
September 5, 2017: Plant Cell
https://www.readbyqxmd.com/read/28855334/plant-specific-histone-deacetylases-hdt%C3%A2-regulate-gibberellin-2-oxidase-2-expression-to-control-arabidopsis-root-meristem-cell-number
#16
Huchen Li, Jesus Torres-Garcia, David Latrasse, Moussa Benhamed, Stefan Schilderink, Wenkun Zhou, Olga Kulikova, Heribert Hirt, Ton Bisseling
Root growth is modulated by environmental factors and depends on cell production in the root meristem (RM). New cells in the meristem are generated by stem cells and transit-amplifying cells, which together determine RM cell number. Transcription factors and chromatin-remodelling factors have been implicated in regulating the switch from stem cells to transit-amplifying cells. Here we show that two Arabidopsis thaliana paralogs encoding plant-specific histone deacetylases, HDT1 and HDT2, regulate a second switch from transit-amplifying cells to expanding cells...
August 30, 2017: Plant Cell
https://www.readbyqxmd.com/read/28855333/plant-signaling-and-metabolic-pathways-enabling-arbuscular-mycorrhizal-symbiosis
#17
Allyson M MacLean, Armando Bravo, Maria J Harrison
Plants have lived in close association with arbuscular mycorrhizal (AM) fungi for over 400 million years and today this endosymbiosis occurs broadly in the plant kingdom where it has a pronounced impact on plant mineral nutrition. The symbiosis develops deep within the root cortex with minimal alterations in the external appearance of the colonized root; however, the absence of macroscopic alterations belies the extensive signaling, cellular remodeling and metabolic alterations that occur within each colonized cortical cell to enable accommodation of the fungal endosymbiont...
August 30, 2017: Plant Cell
https://www.readbyqxmd.com/read/28855332/general-control-non-repressible-4-gcn4-degrades-14-3-3-and-rin4-complex-to-regulate-stomatal-aperture-with-implications-on-nonhost-resistance-and-drought-tolerance
#18
Amita Kaundal, Vemanna Ramu, Sunhee Oh, Seonghee Lee, Bikram D Pant, Hee-Kyung Lee, Clemencia Rojas, Muthappa Senthil-Kumar, Kirankumar S Mysore
Plants have complex and adaptive innate immune responses against pathogen infections. Stomata are key entry points for many plant pathogens. Both pathogens and plants regulate stomatal aperture for pathogen entry and defense, respectively. Not all plant proteins involved in stomatal aperture regulation have been identified. Here we report general control non-repressible-4 (GCN4), an AAA+-ATPase family protein, as one of the key proteins regulating stomatal aperture during biotic and abiotic stress. Silencing of GCN4 in Nicotiana benthamiana and Arabidopsis compromises host and nonhost disease resistance due to open stomata during pathogen infection...
August 30, 2017: Plant Cell
https://www.readbyqxmd.com/read/28842535/journal-impact-brave-new-world
#19
Nancy Eckardt, Sabeeha S Merchant
No abstract text is available yet for this article.
August 25, 2017: Plant Cell
https://www.readbyqxmd.com/read/28842534/light-and-ethylene-coordinately-regulate-the-phosphate-starvation-response-through-transcriptional-regulation-of-phosphate-starvation-response1
#20
Yang Liu, Yurong Xie, Hai Wang, Xiaojing Ma, Wenjun Yao, Haiyang Wang
Plants have evolved an array of adaptive responses to low phosphate (Pi) availability, a process modulated by various external stimuli and endogenous growth regulatory signals. Little is known about how these signaling processes interact to produce an integrated response. Arabidopsis thaliana PHOSPHATE STARVATION RESPONSE1 (PHR1) encodes a conserved MYB type transcription factor that is essential for programming Pi starvation-induced (PSI) gene expression and downstream Pi starvation responses (PSRs). Here, we show that loss-of-function mutations in FHY3 and FAR1, encoding two positive regulators of phytochrome signaling, and in EIN3, encoding a master regulator of ethylene responses, cause attenuated PHR1 expression, whereas mutation in HY5, encoding another positive regulator of light signaling, causes increased PHR1 expression...
August 25, 2017: Plant Cell
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