scholarly journals CBL2-CIPK6-TST2-Mediated Regulation of Sugar Homeostasis

2020 ◽  
Vol 183 (1) ◽  
pp. 21-22
Author(s):  
Kerri Hunter
Keyword(s):  
Sugar Homeostasis

scholarly journals Sugar homeostasis mediated by cell wall invertase GRAIN INCOMPLETE FILLING 1 (GIF1) plays a role in pre-existing and induced defence in rice

2013 ◽  
Vol 15 (2) ◽  
pp. 161-173 ◽  
Author(s):  
Li Sun ◽  
Dong-lei Yang ◽  
Yu Kong ◽  
Ying Chen ◽  
Xiao-Zun Li ◽  
...  
Keyword(s):  
Cell Wall ◽  
Induced Defence ◽  
Cell Wall Invertase ◽  
Incomplete Filling ◽  
Sugar Homeostasis

Cytosolic phosphofructokinases are important for sugar homeostasis in leaves of Arabidopsis thaliana

2021 ◽  
Author(s):  
Laura Kathrine Perby ◽  
Simon Richter ◽  
Konrad Weber ◽  
Alina Johanna Hieber ◽  
Natalia Hess ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Double Mutant ◽  
Normal Growth ◽  
Growth Conditions ◽  
Metabolic Phenotype ◽  
Minor Role ◽  
Knock Out ◽  
Genes Encoding ◽  
Fructose 1,6 Bisphosphate ◽  
Sugar Homeostasis

Abstract Background and Aims ATP-dependent phosphofructokinases (PFKs) catalyse phosphorylation of the carbon-1 position of fructose-6-phosphate, to form fructose-1,6-bisphosphate. In the cytosol, this is considered a key step in channelling carbon into glycolysis. Arabidopsis thaliana has seven genes encoding PFK isoforms, two chloroplastic and five cytosolic. This study focusses on the four major cytosolic isoforms of PFK in vegetative tissues of A. thaliana. Methods We have isolated homozygous knock-out individual mutants (pfk1, pfk3, pfk6, pfk7) and two double mutants (pfk1/7 and pfk3/6) and characterized their growth and metabolic phenotypes. Key Results In contrast to single mutants and the double mutant pfk3/6 for the hypoxia-responsive isoforms, the double mutant pfk1/7 had reduced PFK activity and shows a clear visual and metabolic phenotype with reduced shoot growth, early flowering, and elevated hexose levels. This mutant also has an altered ratio of short/long aliphatic glucosinolates and an altered root-shoot distribution. Surprisingly, this mutant does not show any major changes in short-term carbon flux and in levels of hexose-phosphates. Conclusions We conclude that the two isoforms PFK1 and PFK7 are important for sugar homeostasis in leaf metabolism and apparently source/sink relations in Arabidopsis, while PFK3 and PFK6 only play a minor role under normal growth conditions.

scholarly journals Phosphoglucose Isomerase Plays a Key Role in Sugar Homeostasis, Stress Response, and Pathogenicity in Aspergillus flavus

2021 ◽  
Vol 11 ◽  
Author(s):  
Yao Zhou ◽  
Chao Du ◽  
Arome Solomon Odiba ◽  
Rui He ◽  
Chukwuemeka Samson Ahamefule ◽  
...  
Keyword(s):  
Stress Response ◽  
Aspergillus Flavus ◽  
Plant Pathogens ◽  
Galleria Mellonella ◽  
Unmet Need ◽  
Pentose Phosphate ◽  
Phosphoglucose Isomerase ◽  
Infection Model ◽  
Experimental Conditions ◽  
Sugar Homeostasis

Aspergillus flavus is one of the important human and plant pathogens causing not only invasive aspergillosis in immunocompromised patients but also crop contamination resulting from carcinogenic aflatoxins (AFs). Investigation of the targeting factors that are involved in pathogenicity is of unmet need to dismiss the hazard. Phosphoglucose isomerase (PGI) catalyzes the reversible conversion between glucose-6-phosphate and fructose-6-phosphate, thus acting as a key node for glycolysis, pentose phosphate pathway, and cell wall biosynthesis in fungi. In this study, we constructed an A. flavus pgi deletion mutant, which exhibited specific carbon requirement for survival, reduced conidiation, and slowed germination even under optimal experimental conditions. The Δpgi mutant lost the ability to form sclerotium and displayed hypersusceptibility to osmotic, oxidative, and temperature stresses. Furthermore, significant attenuated virulence of the Δpgi mutant was documented in the Caenorhabditis elegans infection model, Galleria mellonella larval model, and crop seeds. Our results indicate that PGI in A. flavus is a key enzyme in maintaining sugar homeostasis, stress response, and pathogenicity of A. flavus. Therefore, PGI is a potential target for controlling infection and AF contamination caused by A. flavus.

scholarly journals The Calcium Sensor CBL2 and Its Interacting Kinase CIPK6 Are Involved in Plant Sugar Homeostasis via Interacting with Tonoplast Sugar Transporter TST2

2020 ◽  
Vol 183 (1) ◽  
pp. 236-249 ◽  
Author(s):  
Jinwu Deng ◽  
Xiyan Yang ◽  
Weinan Sun ◽  
Yuhuan Miao ◽  
Liangrong He ◽  
...  
Keyword(s):  
Calcium Sensor ◽  
Sugar Transporter ◽  
Sugar Homeostasis

scholarly journals Fine-tuning of amino sugar homeostasis by EIIANtr in Salmonella Typhimurium

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Woongjae Yoo ◽  
Hyunjin Yoon ◽  
Yeong-Jae Seok ◽  
Chang-Ro Lee ◽  
Hyung Ho Lee ◽  
...  
Keyword(s):  
Salmonella Typhimurium ◽  
Amino Sugar ◽  
Fine Tuning ◽  
Sugar Homeostasis
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