scholarly journals SKIP regulates environmental fitness and floral transition by forming two distinct complexes in Arabidopsis

2019 ◽  
Vol 224 (1) ◽  
pp. 321-335 ◽  
Author(s):  
Yan Li ◽  
Jing Yang ◽  
Xudong Shang ◽  
Wenzhu Lv ◽  
Congcong Xia ◽  
...  
Keyword(s):  
Floral Transition ◽  
Environmental Fitness

scholarly journals Characterisation of Listeria monocytogenes food-associated isolates to assess environmental fitness and virulence potential

2021 ◽  
pp. 109247
Author(s):  
Jessica A. Gray ◽  
P. Scott Chandry ◽  
Mandeep Kaur ◽  
Chawalit Kocharunchitt ◽  
John P. Bowman ◽  
...  
Keyword(s):  
Listeria Monocytogenes ◽  
Virulence Potential ◽  
Environmental Fitness

scholarly journals Simple network motifs can capture key characteristics of the floral transition inArabidopsis

2013 ◽  
Vol 8 (11) ◽  
pp. e26149 ◽  
Author(s):  
Nick Pullen ◽  
Katja E Jaeger ◽  
Philip A Wigge ◽  
Richard J Morris
Keyword(s):  
Floral Transition ◽  
Network Motifs ◽  
Key Characteristics ◽  
Simple Network

scholarly journals Peptidyl-Prolyl-cis/trans-Isomerases Mip and PpiB ofLegionella pneumophilaContribute to Surface Translocation, Growth at Suboptimal Temperature, and Infection

2018 ◽  
Vol 87 (1) ◽  
Author(s):  
J. Rasch ◽  
C. M. Ünal ◽  
A. Klages ◽  
Ü. Karsli ◽  
N. Heinsohn ◽  
...  
Keyword(s):  
Legionella Pneumophila ◽  
Acanthamoeba Castellanii ◽  
Temperature Tolerance ◽  
Lung Damage ◽  
Atypical Pneumonia ◽  
Content Type ◽  
Wide Range ◽  
Legionnaires Disease ◽  
Environmental Fitness ◽  
Sliding Motility

ABSTRACTThe gammaproteobacteriumLegionella pneumophilais the causative agent of Legionnaires’ disease, an atypical pneumonia that manifests itself with severe lung damage.L. pneumophila, a common inhabitant of freshwater environments, replicates in free-living amoebae and persists in biofilms in natural and man-made water systems. Its environmental versatility is reflected in its ability to survive and grow within a broad temperature range as well as its capability to colonize and infect a wide range of hosts, including protozoa and humans. Peptidyl-prolyl-cis/trans-isomerases (PPIases) are multifunctional proteins that are mainly involved in protein folding and secretion in bacteria. InL. pneumophilathe surface-associated PPIase Mip was shown to facilitate the establishment of the intracellular infection cycle in its early stages. The cytoplasmic PpiB was shown to promote cold tolerance. Here, we set out to analyze the interrelationship of these two relevant PPIases in the context of environmental fitness and infection. We demonstrate that the PPIases Mip and PpiB are important for surfactant-dependent sliding motility and adaptation to suboptimal temperatures, features that contribute to the environmental fitness ofL. pneumophila. Furthermore, they contribute to infection of the natural hostAcanthamoeba castellaniias well as human macrophages and human explanted lung tissue. These effects were additive in the case of sliding motility or synergistic in the case of temperature tolerance and infection, as assessed by the behavior of the double mutant. Accordingly, we propose that Mip and PpiB are virulence modulators ofL. pneumophilawith compensatory action and pleiotropic effects.

DhEFL2, 3 and 4, the three EARLY FLOWERING4-like genes in a Doritaenopsis hybrid regulate floral transition

2015 ◽  
Vol 34 (12) ◽  
pp. 2027-2041 ◽  
Author(s):  
Weiwei Chen ◽  
Qiaoping Qin ◽  
Chi Zhang ◽  
Yongping Zheng ◽  
Chun Wang ◽  
...  
Keyword(s):  
Floral Transition ◽  
Doritaenopsis Hybrid

Floral transition in maize infected with Sporisorium reilianum disrupts compatibility with this biotrophic fungal pathogen

Planta ◽  
2013 ◽  
Vol 237 (5) ◽  
pp. 1251-1266 ◽  
Author(s):  
Shaopeng Zhang ◽  
Jack Gardiner ◽  
Yannong Xiao ◽  
Jiuran Zhao ◽  
Fengge Wang ◽  
...  
Keyword(s):  
Fungal Pathogen ◽  
Floral Transition ◽  
Sporisorium Reilianum

scholarly journals TEM1 combinatorially binds to FLOWERING LOCUS T and recruits a Polycomb factor to repress the floral transition in Arabidopsis

2021 ◽  
Vol 118 (35) ◽  
pp. e2103895118
Author(s):  
Hongmiao Hu ◽  
Shu Tian ◽  
Guohui Xie ◽  
Rui Liu ◽  
Nana Wang ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Molecular Basis ◽  
Floral Transition ◽  
Flowering Locus T ◽  
Dna Binding Domains ◽  
Adult Transition ◽  
Binding Domains ◽  
Flowering Locus ◽  
Specific Regulation

Arabidopsis TEMPRANILLO 1 (TEM1) is a transcriptional repressor that participates in multiple flowering pathways and negatively regulates the juvenile-to-adult transition and the flowering transition. To understand the molecular basis for the site-specific regulation of FLOWERING LOCUS T (FT) by TEM1, we determined the structures of the two plant-specific DNA-binding domains in TEM1, AP2 and B3, in complex with their target DNA sequences from the FT gene 5′-untranslated region (5′-UTR), revealing the molecular basis for TEM1 specificity for its DNA targets. In vitro binding assays revealed that the combination of the AP2 and B3 binding sites greatly enhanced the overall binding of TEM1 to the FT 5′-UTR, indicating TEM1 combinatorically recognizes the FT gene 5′-UTR. We further showed that TEM1 recruits the Polycomb repressive complex 2 (PRC2) to the FT 5′-UTR. The simultaneous binding of the TEM1 AP2 and B3 domains to FT is necessary for deposition of H3K27me3 at the FT 5′-UTR and for the flowering repressor function of TEM1. Overall, our data suggest that the combinatorial recognition of FT 5′-UTR by TEM1 ensures H3K27me3 deposition to precisely regulate the floral transition.

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