YEPD or yeast extract peptone dextrose, also often abbreviated as YPD, is a complete medium for yeast growth. It contains yeast extract, peptone, double-distilled water, and glucose (dextrose).[1] It can be used as solid medium by including agar. The yeast extract will typically contain all the amino acids necessary for growth. By being a complete medium, YEPD cannot be used as a selection medium to test for auxotrophs. Instead, YEPD is used as a growth medium to grow yeast cultures.
YEPD typically contains 1% yeast extract, 2% peptone, and 2% glucose in distilled water. It may be made as a broth, or made into an agar gel by adding 1.5 to 2% agar.[2][3]
References
[edit]- ^ "YPD media". Cold Spring Harbor Protocols. 2010 (9): pdb.rec12315. 2010-09-01. doi:10.1101/pdb.rec12315. ISSN 1940-3402.
- ^ "Yeast Extract-Peptone-Dextrose (YPD) Agar" (PDF). Retrieved 2017-12-29.
- ^ "protocol: YPD plates". fg.cns.utexas.edu. Retrieved 2017-12-29.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction