scholarly journals Myco- and microorganisms in the tuberculosis pathology of the common ash in Ukraine and interaction between them

2021 ◽  
Vol 12 (2) ◽  
pp. 81-92
Author(s):  
I. M. Kulbanska ◽  
А. F. Goychuk ◽  
M. V. Shvets
Keyword(s):  
Pseudomonas Syringae ◽  
Woody Plants ◽  
Self Regulation ◽  
Pathological Process ◽  
Tree Plantations ◽  
Phytopathogenic Bacterium ◽  
Fusarium Sp ◽  
The Common ◽  
Fusarium Heterosporum ◽  
Mycelia Sterilia

Attention is focused on the fact that in recent years there has been epiphytotic dieback out of many species of forest woody plants both in Ukraine and in other countries of the world, which has a dynamic character and a tendency to grow. In the deep pathology of this phenomenon, phytopathogenic bacteria, which have high reproduction energy and can penetrate the plant both from the outside and cause a pathological process as vital obligates, were left without attention. It has been established that the most common and harmful disease of common ash in Ukraine is tuberculosis. The causative agent of the disease is the phytopathogenic bacterium Pseudomonas syringae pv. savastanoi Gard. affects both trunks, branches and shoots, and inflorescences of common ash. Bacteria Pseudomonas sp., Pseudomonas fluorescens Mig., Pseudomonas syringae Van., Erwinia herbicola Eh., Xanthomonas sp. were isolated from tuberculous pathology as a concomitant myco- and microbiota and micromycetes Cladosporium cladosporiodes Fres., Ulocladium botrytis Preus., Mycelia sterilia (dark), Mycelia sterilia (orange), Fusarium heterosporum Lin., Fusarium sp., W., Cylindrocarpon didymium Har., etc. The mechanism of systemic relationships of the components of myco- and microbiota of tuberculous pathology of common ash in the regulation (self-regulation) of pathogenicity and aggressiveness of vital obligates has been investigated. Attention is focused on the prospects and expediency of using the antagonistic properties of myco- and microorganisms and biological products based on them for the prevention and protection of tree plantations from bacterial pathogens. It is shown that the pathology of common ash is a multifaceted phenomenon with interrelated processes of an infectious and non-infectious nature. The need to distinguish between the etiology and pathogenesis of this negative phenomenon is indicated, that is, not to mix the factors that lead to the weakening of ordinary ash (factors catalyzing the disease) and the factors that cause its epiphytotic dieback. Keywords: bacteria, fungi, common ash, antagonism, Pseudomonas syringae pv. savastanoi.

scholarly journals The algT Gene of Pseudomonas syringae pv. glycinea andNew Insights into the Transcriptional Organization of thealgT-muc Gene Cluster

2006 ◽  
Vol 188 (23) ◽  
pp. 8013-8021 ◽  
Author(s):  
Alexander Schenk ◽  
Michael Berger ◽  
Lisa M. Keith ◽  
Carol L. Bender ◽  
Georgi Muskhelishvili ◽  
...  
Keyword(s):  
Gene Cluster ◽  
Pseudomonas Syringae ◽  
Azotobacter Vinelandii ◽  
Regulatory Gene ◽  
In Planta ◽  
Phytopathogenic Bacterium ◽  
Reverse Transcription Pcr ◽  
Alginate Production ◽  
Alginate Biosynthesis

ABSTRACT The phytopathogenic bacterium Pseudomonas syringae pv. glycinea infects soybean plants and causes bacterial blight. In addition to P. syringae, the human pathogen Pseudomonas aeruginosa and the soil bacterium Azotobacter vinelandii produce the exopolysaccharide alginate, a copolymer of d-mannuronic and l-guluronic acids. Alginate production in P. syringae has been associated with increased fitness and virulence in planta. Alginate biosynthesis is tightly controlled by proteins encoded by the algT-muc regulatory gene cluster in P. aeruginosa and A. vinelandii. These genes encode the alternative sigma factor AlgT (σ22), its anti-sigma factors MucA and MucB, MucC, a protein with a controversial function that is absent in P. syringae, and MucD, a periplasmic serine protease and homolog of HtrA in Escherichia coli. We compared an alginate-deficient algT mutant of P. syringae pv. glycinea with an alginate-producing derivative in which algT is intact. The alginate-producing derivative grew significantly slower in vitro growth but showed increased epiphytic fitness and better symptom development in planta. Evaluation of expression levels for algT, mucA, mucB, mucD, and algD, which encodes an alginate biosynthesis gene, showed that mucD transcription is not dependent on AlgT in P. syringae in vitro. Promoter mapping using primer extension experiments confirmed this finding. Results of reverse transcription-PCR demonstrated that algT, mucA, and mucB are cotranscribed as an operon in P. syringae. Northern blot analysis revealed that mucD was expressed as a 1.75-kb monocistronic mRNA in P. syringae.

scholarly journals Physical map of the chromosome of the phytopathogenic bacterium Pseudomonas syringae pv. phaseolicola

Microbiology ◽  
1998 ◽  
Vol 144 (2) ◽  
pp. 493-501 ◽  
Author(s):  
M. E. De Ita ◽  
R. Marsch-Moreno ◽  
P. Guzman ◽  
A. Alvarez-Morales
Keyword(s):  
Pseudomonas Syringae ◽  
Physical Map ◽  
Phytopathogenic Bacterium

scholarly journals Applying a Common-Sense Approach to Fighting Obesity

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Jessica Y. Breland ◽  
Ashley M. Fox ◽  
Carol R. Horowitz ◽  
Howard Leventhal
Keyword(s):  
Common Sense ◽  
Weight Maintenance ◽  
Self Regulation ◽  
Initial Weight ◽  
Initial Weight Loss ◽  
Common Sense Model ◽  
Change Models ◽  
Obesity Epidemic ◽  
The Common ◽  
Sense Model

The obesity epidemic is a threat to the health of millions and to the economic viability of healthcare systems, governments, businesses, and nations. A range of answers come to mind if and when we ask, “What can we, health professionals (physicians, nurses, nutritionists, behavioral psychologists), do about this epidemic?” In this paper, we describe the Common-Sense Model of Self-Regulation as a framework for organizing existent tools and creating new tools to improve control of the obesity epidemic. Further, we explain how the Common-Sense Model can augment existing behavior-change models, with particular attention to the strength of the Common-Sense Model in addressing assessment and weight maintenance beyond initial weight loss.

Using the Common Sense Model of Self-Regulation to Understand the Relationship Between Symptom Reporting and Trait Negative Affect

2014 ◽  
Vol 21 (6) ◽  
pp. 989-994 ◽  
Author(s):  
Lisa M. McAndrew ◽  
Pablo A. Mora ◽  
Karen S. Quigley ◽  
Elaine A. Leventhal ◽  
Howard Leventhal
Keyword(s):  
Negative Affect ◽  
Common Sense ◽  
Self Regulation ◽  
Symptom Reporting ◽  
Common Sense Model ◽  
The Common ◽  
The Relationship ◽  
Sense Model

TAKEOVER REGULATION: HISTORICAL AND THEORETICAL PERSPECTIVES ON THE CITY CODE

2007 ◽  
Vol 66 (2) ◽  
pp. 422-460 ◽  
Author(s):  
Andrew Johnston
Keyword(s):  
Low Cost ◽  
Self Regulation ◽  
Company Law ◽  
General Management ◽  
Theoretical Perspectives ◽  
The Common ◽  
The City ◽  
Defensive Measures ◽  
Regulatory Measure ◽  
The Way

The City Code on Takeovers and Mergers has generally been lauded as a system of self-regulation that offers the advantages of speed, flexibility and low cost administration by experts. Many of its provisions are uncontroversial and do indeed reflect a consensus view about the way in which takeovers should be carried out. However, the Code's prohibition on defensive measures by management in the event of a takeover is far more controversial. This article argues that the City Code – and the prohibition on defensive measures in particular - was introduced because the common law had demonstrated itself incapable of putting in place a system of takeover regulation that ensured the takeover remained a viable means of ensuring managerial accountability to shareholders. Its introduction in 1968 fundamentally transformed the UK's system of corporate governance. Through its prohibition on defensive measures once a takeover becomes imminent, the Code truncates the general management discretion that lies at the heart of company law and forces management to focus on the generation of short-term shareholder value. What is striking is that this fundamental reorientation of the way in which companies are controlled was brought about not by an Act of Parliament but by a self-regulatory measure put in place by financial institutions. Following the implementation of the Takeover Directive, which itself was heavily influenced by the City Code, the Companies Act 2006 now requires the Takeover Panel to maintain that prohibition.

Reformulating the Common Sense Model of Self-Regulation

2016 ◽  
Vol 29 (2) ◽  
pp. 154-159 ◽  
Author(s):  
Jennifer T. Sonney ◽  
Kathleen C. Insel
Keyword(s):  
Common Sense ◽  
Self Regulation ◽  
Common Sense Model ◽  
The Common ◽  
Sense Model
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