Bacillus pumilus and Stenotrophomonas maltophilia as two potentially causative agents involved in Persian oak decline in Zagros forests (Iran)

2019 ◽  
Vol 49 (5) ◽  
pp. e12541 ◽  
Author(s):  
Elahe Ahmadi ◽  
Mojegan Kowsari ◽  
Davood Azadfar ◽  
Gholamreza Salehi Jouzani
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mohadeseh Ghanbari Motlagh ◽  
Masoud Kiadaliri

Abstract Zagros forests have the greatest impact on soil and water protection in western Iran. Despite this, a significant part of these forests, especially in Ilam province, have suffered a lot due to the phenomenon of oak decline. The first and most fundamental thing a person must know when combating this issue is the distribution of these areas in forests. Therefore, using the parameters affecting the decline in the forests of Ilam province and based on fuzzy logic, a map of susceptible to oak decline areas was prepared. In this study, the parameters of temperature and precipitation, slope, aspect, altitude, distance from farmlands, roads and forest density were selected as effective parameters and fuzzy gamma overlap method was used. The results showed that more than 77% of the oak forests in the province are highly and extremely susceptible to the decline. This confirms the need for rapid action to plan and protect these forests. In addition, the fuzzy method is proposed, which is considered as a fast and efficient method in preparing such maps for other areas.


2013 ◽  
Vol 58 (No. 12) ◽  
pp. 637-640
Author(s):  
M. Lukac ◽  
K. Matanovic ◽  
L. Barbic ◽  
B. Seol

A three-year-old male western black-tailed rattlesnake (Crotalus molossus molossus), which was refusing food and losing weight was presented with a swelling on the right side of the head below the eye. An abscess was suspected and treatment with subcutaneous enrofloxacin was started immediately. After identification of the causative agents as Pseudomonas aeruginosa and Stenotrophomonas maltophilia, and following susceptibility testing, enrofloxacin treatment was replaced with marbofloxacin, intralesional gentamicin/betamethasone treatment and gentamicin administered subcutaneously at an increased terrarium temperature of 35 °C. Seven days later, the formed pus plug was debrided and a combined marbofloxacin/gentamicin/betamethasone treatment was continued for an additional seven days. The swelling disappeared. Marbofloxacin was continued for ten more days, after which time microbiology tests were negative for S. maltophilia and P. aeruginosa. The animal began to eat and gain body weight. To our knowledge, this is the first report of an abscess treatment in a rattlesnake and the first to demonstrate the effective treatment of a S. maltophilia-induced infection with a combination of marbofloxacin and gentamicin.


2021 ◽  
Vol 51 (6) ◽  
Author(s):  
Vanessa Silva Santos ◽  
Paula Fabiane Martins ◽  
Lucélia Borgo ◽  
Paula Sperotto Alberto Faria ◽  
Cintia Faria da Silva ◽  
...  

ABSTRACT: The excessive use of agrochemicals negatively impacts the environment, making the development of sustainable technologies for the reduction of contaminants in soil necessary. Hexazinone is the herbicide most used for sugarcane crops and persists in the environment. Moreover, its main route of degradation in the soil is through microorganisms. Therefore, six microorganisms were selected that presented growth in the presence of the herbicide; SCR1 - Microbacterium arborescens; SCR2 - Bacillus pumilus; SCM3 - Stenotrophomonas maltophilia; SCM4 - Bacillus cereus; SCM5A - M. arborescens; and SCM5B - B. safensis. A test was performed to evaluate the ability of each lineage in phosphate solubilization. For the Ca3(PO4)2 solubilization test, the strains that showed the best results were B. pumilus and S. maltophilia. Subsequently, the inoculants were prepared and the concentrations after plating were 2.71 × 109 CFU mL-1 for B. pumilus, 1.02 × 109 CFU mL-1 for S. maltophilia, and 1.14 × 1010 CFU mL-1 for a combination of the two strains. These were satisfactory values for use as inoculants.


1966 ◽  
Vol 05 (04) ◽  
pp. 167-171 ◽  
Author(s):  
L. E. Faer

Developments of disease hypotheses and conceptions of disease as philosophic entities have shown bursts of great advance. One just concluded includes emergence of bacteriology and virology culminating in Koch’s Postulates, which in the twentieth century were primary bases for disease study and colored all approaches to medicine.With recent extraordinary advances in technology, medicine faces great new obligations demanding fresh approaches and untrammeled thinking for solution of problems posed. It is clear that any approach to diseases and disabilities induced by exposures to environmental pollutants must take multiple etiology into account. For example, contributing to causation of lung malignancies one must list usual dusts, radioactivity, smog, auto exhausts, cigarette smoke and genetic composition. Consideration of plural factors in genesis of environmentally associated disease leads to the hypothesis of the incremental insult, a complex and difficult conception in which must be included provision for multiple causative agents, each contributing but a fraction toward total etiology^ Computers developed to their present refinement provide necessary tools for whatever complexity required to spawn and fructify hypotheses of inter-relating associations of incremental insults leading to pathology.


2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
Dorothea Taylor ◽  
George M Garrity
Keyword(s):  

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
Nicole Danielle Osier ◽  
George M Garrity
Keyword(s):  

2019 ◽  
Vol 53 (4) ◽  
pp. 265-268
Author(s):  
M. Mirab-balou

Abstract Liophloeothrips baharae sp. n. is described based on the holotype female collected on dead branches under oak trees in Zagros forests from Ilam province, western Iran. It is related to L. reperticus Ananthakrishnan and Muraleedharan, 1974 from India.


Author(s):  
Е.Н. Ильина ◽  
Е.И. Олехнович ◽  
А.В. Павленко

С течением времени подходы к изучению резистентности к антибиотикам трансформировались от сосредоточения на выделенных в виде чистой культуры патогенных микроорганизмах к исследованию резистентности на уровне микробных сообществ, составляющих биотопы человека и окружающей среды. По мере того, как продвигается изучение устойчивости к антибиотикам, возникает необходимость использования комплексного подхода для улучшения информирования мирового сообщества о наблюдаемых тенденциях в этой области. Все более очевидным становится то, что, хотя не все гены резистентности могут географически и филогенетически распространяться, угроза, которую они представляют, действительно серьезная и требует комплексных междисциплинарных исследований. В настоящее время резистентность к антибиотикам среди патогенов человека стала основной угрозой в современной медицине, и существует значительный интерес к определению ниши, в которых бактерии могут получить гены антибиотикорезистентности, и механизмов их передачи. В данном обзоре мы рассматриваем проблемы, возникшие на фоне широкого использования человечеством антибактериальных препаратов, в свете формирования микрофлорой кишечника резервуара генов резистентности. Over the time, studies of antibiotic resistance have transformed from focusing on pathogenic microorganisms isolated as a pure culture to analysis of resistance at the level of microbial communities that constitute human and environmental biotopes. Advancing studies of antibiotic resistance require an integrated approach to enhance availability of information about observed tendencies in this field to the global community. It becomes increasingly obvious that, even though not all resistance genes can geographically and phylogenetically spread, the threat they pose is indeed serious and requires complex interdisciplinary research. Currently, the antibiotic resistance of human pathogens has become a challenge to modern medicine, which is now focusing on determining a potential source for bacterial genes of drug resistance and mechanisms for the gene transmission. In this review, we discussed problems generated by the widespread use of antibacterial drugs in the light of forming a reservoir of resistance genes by gut microflora.


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