Theodor Seuss Geisel, better known by his pen name, Dr. Seuss, graduated Dartmouth College in 1925, then pursued a Doctor of Philosophy (in the US, PhD) in English Literature from Lincoln College, Oxford University. He married in 1927 and returned to the United States without completing his studies.
Penicillium species are one of the most common causes of fungal spoilage in fruits and vegetables. Penicillium italicum and Penicillium digitatum are the most common attackers of citrus fruits, while Penicillium expansum is known to attack apples. P. digitatum works by producing ethylene to accelerate ripening.
Penicillium. Description. Penicillium is a fungus, and is the most abundant mold source in soil. There are more than 150 species of penicillium. Penicillium that is more than two-weeks old is bluish in color. Penicillium is a cryophilic fungi, which means it likes the cold, growing best at 34 degrees (the temperature of a refrigerator). It is xerophilic, which means it can obtain moisture from the air if humidity is at 60% or higher. Photos.