CSB353H1 Lecture Notes - Lecture 1: Chalcone Synthase, Nicotine, Start Codon
8 Apr 2016
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Create virus resistant crops by using virus coat protein gene. Tobacco mosaic virus (tmv) 1st coat protein that makes a plant transgenic. Papaya ring spot virus (prsv) almost wiped out papaya -> tmv introduced -> papaya became the 1st commercialized transgenic fruit. Specialized cells like macrophages, nk cells, neutrophils. Plants expose to fungi, oomycetes, bacteria, viruses, etc. Very few pathogens can actually cause disease (2% of 100 thousands fungi can cause disease in plants) Entry routes for plant pathogens: wounds -> tmv, agrobacterium, sot rut fungi, natural openings -> lenicels, stomata rust fungi, Pseudomonas: direct penetraion -> powdery mildews, rice blast. Plants become very suscepible to pathogens if cuicles are lost. Plant issue is killed and colonized by pathogen. Plant cells alive only in the iniial stages of infecion. #1 cause of crop losses worldwide; while most diseases in humans and animals are caused by bacteria and viruses. * virus is too small to penetrate plant cell wall by themselves*
