DETERMINATION OF MICROSCOPIC OBJECTS DIMENSIONS USING DIGITAL IMAGES

The proposed method is less time consuming, since the microscope is needed only for obtaining the image of the measured object, as established of the object-micrometer or images of the Goryaev camera grid. Working with a scale ruler and an image is more comfortable and less difficult than working with a microscope, an ocular micrometer and a coordinate microscope table. Working with an image, unlike working with a microscope, is convenient for people using glasses as it reduces the burden on the researcher’s vision.</p

СРАВНИТЕЛЬНАЯ АНТИФУНГАЛЬНАЯ АКТИВНОСТЬ ИЗОЛЯТОВ BACILLUS SUBTILIS И BACILLUS THURINGIENSIS IN VITRO

ACTIVITATEA COMPARATIVĂ ANTIFUNGICĂ A IZOLATELOR DE BACILLUS SUBTILIS ŞI BACILLUS THURINGIENSIS IN VITROSunt arătate rezultatele evaluării comparative a acţiunii antifungice a trei culturi de B. subtilis şi a reprezentanţilor a trei subspecii de B. thuringiensis împotriva ciupercilor fitopatogene Botrytis cinerea, Rhizoctonia solani, Fusarium oxysporum var. orthoceras şi Alternaria alternata în condiţiile experimentului în vitro. Subspeciile de B. thuringiensis au activitate antifungică mai slabă decât B. subtilis. Cel mai activ s-a dovedit a fi B. thuringiensis var. kurstaki.COMPARATIVE ANTIFUNGAL ACTIVITY OF BACILLUS SUBTILIS AND BACILLUS THURINGIENSIS ISOLATES IN VITROThe results of antifungal activity comparative assessment of three B. subtilis culture and representatives of three B. thuringiensis subspecies against phytopathogenic fungi Botrytis cinerea, Sclerotinia sclerotiorum, Rhizoctonia solani, Fusarium oxysporum var. orthoceras and Alternaria alternata in the in vitro experience are presented. B. turingiensis subspecies antifungal activity was less than B. subtilis one. B. thuringiensis var. kurstaki was the most active among B. thuringiensis subspecies.</p

СПОСОБ ОТСРОЧЕННОГО УЧЕТА ЧИСЛА КОЛОНИЙ НА ЧАШКАХ ПЕТРИ

METODĂ DE EVIDENŢĂ AMÂNATĂ A NUMĂRULUI COLONIILOR DE MICROORGANISME ÎN CUTII PETRISe propune o metodă de evidenţă a coloniilor de microorganisme în cutii Petri prin analiza imaginilor digitale, marcarea coloniilor evidenţiate într-un program pentru crearea şi editarea desenelor Microsoft Paint şi înregistrarea numărului lor într-o fereastră Microsoft Office Excel deschisă paralel. Obţinerea imaginilor digitale permite a documenta, arhiva şi evidenţia datele în orice moment potrivit. Posedând toate avantajele aparatului pentru numărarea coloniilor în cutii Petri, metoda propusă de noi evită necesitatea de echipament special şi permite a evidenţia coloniile oricărui microorganism.THE METHOD OF DEFERRED ACCOUNTING OF COLONIES NUMBER IN PETRI DISHESA method for colony account in Petri dishes by analyzing digital images of dishes and marking of recorded colonies by means of computer graphics editor Microsoft Paint and a registration of recorded colonies number in the new open Microsoft Office Excel window is proposed. Obtaining digital images allows documentation and archivation the data and to carry out account at any desired time. Possessing all device advantages for counting colonies in Petri dishes, the method allows to avoid any other special devices for this purpose and to account any kinds of microorganism colonies.</p