id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-023724-5at0rhqk	Cann, Alan J.	Infection	2015-07-24		.txt	text/plain	14979	755	48	The problems plant viruses face in initiating infections of host cells have already been described (Chapter 4), as has the fact that no known plant virus employs a specific cellular receptor of the types that animal and bacterial viruses use to attach to cells. There are probably many different mechanisms involved in systemic resistance, but in general terms there is a tendency of these processes to increase local necrosis when substances such as proteases and peroxidases are produced by the plant to destroy the virus and to prevent its spread and subsequent systemic infection. Virus-resistant plants have been created by the production of transgenic plants expressing recombinant virus proteins or nucleic acids which interfere with virus replication without producing the pathogenic consequences of infection, for example: I Virus coat proteins, which have a variety of complex effects, including inhibition of virus uncoating and interference of expression of the virus at the level of RNA ("gene silencing" by "untranslatable" RNAs), I Intact or partial virus replicases which interfere with genome replication, I Antisense RNAs, I Defective virus genomes, I Satellite sequences (see Chapter 8), I Catalytic RNA sequences (ribozymes), I Modified movement proteins.	./cache/cord-023724-5at0rhqk.txt	./txt/cord-023724-5at0rhqk.txt