Penicillium

concentration of (Mn, Cu, Fe) showed variable sensitivity in growth rate (Table 39, Fig. 49), it was noticed that high concentrations (500 ppm and 1000 ppm) delayed the growth up to 5 days whereas the fungus treated with 500 ppm start to grow at the day 6 and those treated with 1000 ppm start to grow at the 7 day but very slowly growth. P. duclauxii recorded high resistance against different concentrations of (Zn, Pb, Ni, Al) up to 1000 ppm (Table 39, Fig. 49). High concentration 1000 ppm of (Mn, Zn, Ni, Al) couldn’t stopped Penicillium italicum growth (Table 40, Fig. 50). The fungus pigmentation was low or not detected comparing with that of control with different concentration of Zn (Fig. 51). Microscopical examination of this fungus fed with different concentrations of zinc investigated variable sporulation comparing with that of control (Fig. 52). Copper slightly stimulated the growth in concentrations 30 ppm-100 ppm while other concentrations inhibited Penicillium italicum growth and 1000 ppm delayed the fungus growth to 6th day but with a slowly rate (Table 40, Fig.…

research on Penicillium until 1938 when he viewed Fleming’s paper on the mold. Alongside Florey was Doctor Ernst Chain who fought with Florey on who deserved credit for this new drug. During the summer of 1940, Chain and Florey began experiments on fifty mice infected with streptococcus. In this experiment, twenty-five mice were given penicillin and the other twenty-five did not. The results of the experiment showed that the mice given penicillin were cured and the others died a slow, painful…

Mutations of Penicillium notatum When Introduced to Ultraviolet Radiation in Different Environments Introduction DNA is composed of two strands composed of polynucleotides arranged in a double helix formation composed of four nucleotide subunits: adenine (A), thymine (T), guanine (G), and cytosine (C). Each base must form a hydrogen bond with its respective compatible base, therefore adenine always bonds with thymine and guanine always bonds with cytosine. DNA is used to…

Name Vaxi Chokshi Biology 102 Section 002 RL Kingdom Fungi Homework Date 3-20-2015 A. Identify the unknown Fungi specimens: Unknown A Rhizopus stolonifer Unknown B Aspergillus niger Unknown C Penicillium notatum Unknown D________________________________________ B. Type the answer the following questions. (20 pts. each) Remember to include a citation after each question (author, year) and a full citation in the literature cited section at the end of the report. If you…

In the text it states, “Fleming saw a ring around the mold. After some experimentation he noticed that the ring was actually bacteria free and it was a rare spore called Penicillium Notatum.” (Lane 121) This evidence from the text explains that Fleming accidentally left chemicals in his lab and when he arrived home he noticed that there was a ring of mold that was bacteria free and it had a cell called penicillium. That penicillium notatum soon turned into penicillin. After that discovery,…

Varroa destructor (Anderson and Trueman, 2000) is an obligatory ectoparasite of the honeybee (Apis mellifera L). It caused severe damage to populations of this species world-wide in recent years (Le Conte et al., 2010). The direct negative effect of the Varroa on honeybee has well documented (Weinberg and Madel, 1985; Daly et al., 1988, Wienands and Madel, 1988; Marcangeli et al., 1992; Bowen-Walker and Gunn, 2001; Contzen et al., 2004; Yang and Cox-Foster, 2005; Belaïd and Doumandji, 2010;…

that lucky experience would come years of history, well being, and the general study of the discovery of penicillin. Penicillin is one of the earliest discovered and used medicine. Originally the Penicillium mold, the mold that penicillin is derived from, was discovered by a French medical student, Ernest Duchesne in 1896. But then was re-discovered by Alexander Fleming which it states in the Article “The History of Penicillin”, “Penicillin was re-discovered by bacteriologist…

in the U.S, and the effects of over using. Transition: I will begin by giving some background on antibiotics. II. Body 1. First Main Point the uses of antibiotics started in the 1940s. 2. Sub point: In the late 19th century, scientist by the name of Luis Pasteur and Robert Koch are responsible for confirming the main causes of human illness came from germs or bacteria 3. Sub point: According to In Opposing Viewpoints Online Collection, it says, “The biggest advance in the field of antibiotics…

Penicillin was one of the first antibiotics created and used on the population. Sir Alexander Fleming changed the world of medicine not only in his days but also in present-day society. Penicillin was one of the greatest discoveries of the twentieth century, as antibiotics are one of the highest prescribed drugs in the world today. Penicillin is responsible for preventing the spread of infectious disease, and for improving military medicine. While revolutionizing the study of medicine,…

London in 1948. While working on an influenza virus in 1928, he observed that a sample of mold had accidently developed on the culture plate containing staphylococcus. Taking a closer look, he noted that the mold sample had created a bacteria-free circle surrounding itself. He further experimented and found that the mold culture he had discovered prevented the staphylococcus from growing. He named this active substance penicillin and wrote numerous papers revolving around bacteriology,…