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 is classified as a genus of: domain eukaryota, kingdom Fungi, division Ascomycota (order Eurotiales, class Eurotiomycetes, family Trichocomaceae).enicillium Spp. under bright field microscopy (10 x 100 magnification) with lactophenol cotton blue stain. The thallus (mycelium) typically consists of a highly branched network of multinucleate, septate, usually colorless hyphae.