MICR 3220 Lecture 17: MICR – lecture 17
30 Dec 2015
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Document Summary
Mating types (parents of two different mating types, one would have a small and one would have a large gamete) Oospores forms as a resistant spore, can control harsh conditions. In the spring if the oospore survives it will become active in warmer/wetter environments. Up until the 1980"s there was only one mating type found as a result no oospores were produced because you need two. The second mating type was found in central mexico could indicate it originated here. In 1976 in europe, there was a major drought and. Europeans were heavily users of potatoes so they imported potatoes from all over the world (including. Mexico), therefore introducing the other mating type from central mexico. With the second mating type that meant we could now have oospores around the world. The importation caused the spread of infection bringing the second mating type in (better able to survive with oospores)
