Description of plant viruses

http://www.dpvweb.net/dpv/dpvnameidx.php

botany biology online

http://www.biologie.uni-hamburg.de/b-online/

plant virology online

http://www.dias.kvl.dk/plantvirology/links.html

botany online complete

http://www.biologie.uni-hamburg.de/b-online/e00/contents.htm

medical, human physiology biochemistry PPT slides important

http://biology.nairnacademy.org.uk/wp-content/uploads/2011/06/

host- virus ICTV classification important

http://www.mcb.uct.ac.za/tutorial/vf_fst-h.htm

host virus classification

http://biology.clc.uc.edu/courses/bio106/viruses.htm