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Plant Cell

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https://www.readbyqxmd.com/read/30651348/the-cotton-apoplastic-protein-crr1-stabilizes-chitinase-28-to-facilitate-defense-against-the-fungal-pathogen-verticillium-dahliae
#1
Li-Bo Han, Yuan-Bao Li, Fu-Xin Wang, Wen-Yan Wang, Jun Liu, Jia-He Wu, Nai-Qin Zhong, Sheng-Jie Wu, Gai-Li Jiao, Hai-Yun Wang, Gui-Xian Xia
The apoplast serves as the first battlefield between the plant hosts and invading microbes; therefore, work on plant-pathogen interactions has increasingly focused on apoplastic immunity. In the present study, we identified three proteins in the apoplast of cotton (Gossypium sp.) root cells during interaction of the plant with the fungal pathogen Verticillium dahliae. Among these proteins, cotton host cells secrete chitinase 28 (Chi28) and the cysteine-rich repeat protein 1 (CRR1), while the pathogen releases the protease VdSSEP1...
January 16, 2019: Plant Cell
https://www.readbyqxmd.com/read/30651347/97-shades-of-gray-genetic-interactions-of-the-gray-mold-botrytis-cinerea-with-wild-and-domesticated-tomato
#2
Emily Breeze
No abstract text is available yet for this article.
January 16, 2019: Plant Cell
https://www.readbyqxmd.com/read/30651346/in-brief-for-478-bisseling
#3
Sonali Roy
No abstract text is available yet for this article.
January 16, 2019: Plant Cell
https://www.readbyqxmd.com/read/30651345/genome-scale-sequence-disruption-following-biolistic-transformation-in-rice-and-maize
#4
Jianing Liu, Natalie J Nannas, Fang-Fang Fu, Jinghua Shi, Brooke Aspinwall, Wayne Allen Parrott, R Kelly Dawe
Biolistic transformation delivers nucleic acids into plant cells by bombarding the cells with microprojectiles, which are micron-scale, typically gold particles. Despite the wide use of this technique, little is known about its effect on the cell's genome. We biolistically transformed linear 48 kb phage lambda and two different circular plasmids into rice (Oryza sativa) and maize (Zea mays) and analyzed the results by whole genome sequencing and optical mapping. While some transgenic events showed simple insertions, others showed extreme genome damage in the form of chromosome truncations, large deletions, partial trisomy, and evidence of chromothripsis and breakage-fusion bridge cycling...
January 16, 2019: Plant Cell
https://www.readbyqxmd.com/read/30647077/the-regulation-of-cellulose-biosynthesis-in-plants
#5
Joseph J Kieber, Joanna Polko
Cell walls define the shape of plant cells, controlling the extent and orientation of cell elongation, and hence organ growth. The main load-bearing component of plant cell walls is cellulose, and how plants regulate its biosynthesis during development and in response to various environmental perturbations is a central question in plant biology. It is synthesized by cellulose synthase (CESA) complexes (CSCs) that are assembled in the Golgi apparatus and then delivered to the plasma membrane (PM) where they then actively synthesis cellulose...
January 15, 2019: Plant Cell
https://www.readbyqxmd.com/read/30647076/interactions-of-tomato-and-botrytis-genetic-diversity-parsing-the-contributions-of-host-differentiation-domestication-and-pathogen-variation
#6
Nicole E Soltis, Susanna Atwell, Gongjun Shi, Rachel F Fordyce, Raoni Gwinner, Dihan Gao, Aysha Shafi, Daniel J Kliebenstein
While the impacts of crop domestication on specialist pathogens are well-studied, less is known about the interaction of crop variation and generalist pathogens. To study how genetic variation within a crop impacts plant resistance to generalist pathogens, we infected a collection of wild and domesticated tomato accessions with a genetically diverse population of the generalist pathogen Botrytis cinerea. We quantified variation in lesion size of 97 B. cinerea genotypes (isolates) on 6 domesticated Solanum lycopersicum and 6 wild S...
January 15, 2019: Plant Cell
https://www.readbyqxmd.com/read/30626621/the-apetala2-like-transcription-factor-supernumerary-bract-controls-rice-seed-shattering-and-seed-size
#7
Liyun Jiang, Xin Ma, Shuangshaung Zhao, Yanyan Tang, Fengxia Liu, Ping Gu, Yongcai Fu, Zuofeng Zhu, Hongwei Cai, Chuanqing Sun, Lubin Tan
The elimination of seed shattering was a crucial event during crop domestication. Improving and fine-tuning the regulation of this process will further enhance grain yield by avoiding seed losses during crop production. In this work, we identified a loss-of-shattering mutant suppression of shattering 1 (ssh1) through a screen of mutagenized wild rice introgression lines with naturally high shattering. Using the MutMap approach and transformation experiments, we isolated a genetic factor for seed shattering, SSH1, which is an allele of SUPERNUMERARY BRACT (SNB), a gene encoding a plant-specific APETALA2-like transcription factor...
January 9, 2019: Plant Cell
https://www.readbyqxmd.com/read/30626620/master-mycs-myc2-the-jasmonate-signaling-master-switch
#8
Emily Breeze
No abstract text is available yet for this article.
January 9, 2019: Plant Cell
https://www.readbyqxmd.com/read/30610169/thank-you-editors-and-reviewers-of-the-plant-cell
#9
Nancy Eckardt, Sabeeha S Merchant
No abstract text is available yet for this article.
January 4, 2019: Plant Cell
https://www.readbyqxmd.com/read/30610168/binding-of-the-magnaporthe-oryzae-chitinase-mochia1-by-a-rice-tetratricopeptide-repeat-protein-allows-free-chitin-to-trigger-immune-responses
#10
Chao Yang, Yongqi Yu, Junkai Huang, Fanwei Meng, Jinhuan Pang, Qiqi Zhao, Aziz Islam, Ning Xu, Yun Tian, Jun Liu
To defend against pathogens, plants have developed complex immune systems, including plasma membrane receptors that recognize pathogen-associated molecular patterns, such as chitin from fungal cell walls, and mount a defense response. Here, we identify a chitinase, MoChia1, secreted by Magnaporthe oryzae, a fungal pathogen of rice (Oryza sativa). MoChia1 can trigger plant defense responses and expression of MoChia1 under an inducible promoter in rice enhances its resistance to M. oryzae. MoChia1 is a functional chitinase required for M...
January 4, 2019: Plant Cell
https://www.readbyqxmd.com/read/30610167/a-remote-cis-regulatory-region-is-required-for-nin-expression-in-the-pericycle-to-initiate-nodule-primordium-formation-in-medicago-truncatula
#11
Jieyu Liu, Luuk Rutten, Erik Limpens, Tjitse van der Molen, Robin van Velzen, Rujin Chen, Yuhui Chen, Rene Geurts, Wouter Kohlen, Olga Kulikova, Ton Bisseling
The legume-rhizobium symbiosis results in nitrogen fixing root nodules, and their formation involves both intracellular infection initiated in the epidermis and nodule organogenesis initiated in inner root cell layers. NODULE INCEPTION (NIN) is a nodule-specific transcription factor essential for both processes. These NIN-regulated processes occur at different times and locations in the root, demonstrating a complex pattern of spatiotemporal regulation. We show that regulatory sequences sufficient for the epidermal infection process are located within a 5 kb region directly upstream of the NIN start codon in Medicago truncatula...
January 4, 2019: Plant Cell
https://www.readbyqxmd.com/read/30610166/myc2-regulates-the-termination-of-jasmonate-signaling-via-an-autoregulatory-negative-feedback-loop
#12
Yuanyuan Liu, Minmin Du, Lei Deng, Jiafang Shen, Mingming Fang, Qian Chen, Yanhui Lu, Qiaomei Wang, Chuanyou Li, Qingzhe Zhai
In tomato (Solanum lycopersicum), as with in other plants, the immunity hormone jasmonate (JA) triggers genome-wide transcriptional changes in response to pathogen and insect attack. These changes are largely regulated by the basic helix-loop-helix (bHLH) transcription factor MYC2. The function of MYC2 depends on its physical interaction with the MED25 subunit of the Mediator transcriptional co-activator complex. Although much has been learned about the MYC2-dependent transcriptional activation of JA-responsive genes, relatively less studied is the termination of JA-mediated transcriptional responses and the underlying mechanisms...
January 4, 2019: Plant Cell
https://www.readbyqxmd.com/read/30606781/arabidopsis-er-localized-ubac2-proteins-interact-with-pamp-induced-coiled-coil-to-regulate-pathogen-induced-callose-deposition-and-plant-immunity
#13
Zhe Wang, Xifeng Li, Xiaoting Wang, Nana Liu, Binjie Xu, Qi Peng, Zhifu Guo, Baofang Fan, Cheng Zhu, Zhixiang Chen
Pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) is initiated upon recognition of PAMPs by pattern recognition receptors (PRRs) and associated with complex defense responses including activation of mitogen-activated protein kinases (MAPKs), production of reactive oxygen species (ROS) and callose deposition. Here, we report that mutants for two Arabidopsis homologs of UBIQUITIN-ASSOCIATED DOMAIN-CONTAING PROTEIN 2 (UBAC2), a conserved endoplasmic reticulum (ER) protein implicated in ER quality control, were compromised in PTI based on their hypersusceptibility to a type III secretion system-deficient strain of Pseudomonas syringae...
January 3, 2019: Plant Cell
https://www.readbyqxmd.com/read/30606780/the-role-of-abscisic-acid-signaling-in-maintaining-the-metabolic-balance-required-for-arabidopsis-growth-under-non-stress-conditions
#14
Takuya Yoshida, Toshihiro Obata, Regina Feil, John E Lunn, Yasunari Fujita, Kazuko Yamaguchi-Shinozaki, Alisdair R Fernie
Abscisic acid (ABA) is a plant hormone that regulates a diverse range of cellular and molecular processes during development and in response to osmotic stresses. In Arabidopsis, three sucrose non-fermenting-1 (SNF1)-related protein kinase 2s (SnRK2s), SRK2D, SRK2E and SRK2I, are the key positive regulators involved in ABA signaling, and the substrates of these kinases have been well studied. Besides reduced drought stress tolerance, the srk2d/e/i mutant shows abnormal growth phenotypes, such as an increased number of leaves, under non-stressed conditions...
January 3, 2019: Plant Cell
https://www.readbyqxmd.com/read/30606779/uncoupled-expression-of-nuclear-and-plastid-photosynthesis-associated-genes-contributes-to-cell-death-in-a-lesion-mimic-mutant
#15
Ruiqing Lv, Zihao Li, Mengping Li, Vivek Dogra, Shanshan Lv, Renyi Liu, Keun Pyo Lee, Chanhong Kim
Chloroplast-to-nucleus retrograde signaling is essential for the coupled expression of photosynthesis-associated nuclear genes (PhANGs) and plastid genes (PhAPGs) to ensure the functional status of chloroplasts in plants. Although various signaling components involved in the process have been identified in Arabidopsis thaliana, the biological relevance of such coordination remains an enigma. Here, we show that the uncoupled expression of PhANGs and PhAPGs contributes to the cell death in the lesion simulating disease 1 (lsd1) mutant of Arabidopsis...
January 3, 2019: Plant Cell
https://www.readbyqxmd.com/read/30606778/ferroptosis-a-companion-of-ros-in-fighting-magnaporthe-in-rice
#16
CĂ©line Caseys
No abstract text is available yet for this article.
January 3, 2019: Plant Cell
https://www.readbyqxmd.com/read/30606777/hos15-interacts-with-the-histone-deactetylase-hda9-and-the-evening-complex-to-epigenetically-regulate-the-floral-activator-gigantea
#17
Hee Jin Park, Dongwon Baek, Joon-Yung Cha, Xueji Liao, Sang-Ho Kang, Robertson C McClung, Sang Yeol Lee, Dae Jin Yun, Woe-Yeon Kim
In plants, seasonal inputs such as photoperiod and temperature modulate the plant's internal genetic program to regulate the timing of the developmental transition from vegetative to reproductive growth. This regulation of the floral transition involves chromatin remodeling, including covalent modification of histones. Here, we report that HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENE 15 (HOS15), a WD40 repeat protein, associates with a histone deacetylase complex to repress transcription of the GIGANTEA (GI)-mediated photoperiodic flowering pathway in Arabidopsis thaliana...
January 3, 2019: Plant Cell
https://www.readbyqxmd.com/read/30573473/a-robust-auxin-response-network-controls-embryo-and-suspensor-development-through-a-bhlh-transcriptional-module
#18
Tatyana Radoeva, Annemarie S Lokerse, Cristina I Llavata-Peris, Jos Wendrich, Daoquan Xiang, Che-Yang Liao, Lieke Vlaar, Mark Boekschoten, Guido Hooiveld, Raju Datla, Dolf Weijers
Land plants can reproduce sexually by developing an embryo from a fertilized egg cell. However, embryos can also be formed from other cell types in many plant species. A key question is thus how embryo identity in plants is controlled, and how this process is modified during non-zygotic embryogenesis. The Arabidopsis zygote divides to produce an embryonic lineage and an extra-embryonic suspensor. Yet, normally quiescent suspensor cells can develop a second embryo when the initial embryo is damaged, or when response to the signaling molecule auxin is locally blocked...
December 20, 2018: Plant Cell
https://www.readbyqxmd.com/read/30573472/suspended-animation-a-transcriptional-module-triggers-embryo-formation-in-suspensor-cells
#19
Jennifer A Lockhart
No abstract text is available yet for this article.
December 20, 2018: Plant Cell
https://www.readbyqxmd.com/read/30573471/the-areb1-ada2b-gcn5-complex-regulates-gene-expression-during-drought-stress
#20
Christian Danve Marco Castroverde
No abstract text is available yet for this article.
December 20, 2018: Plant Cell
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