Week 10, Lecture 3, Plant Diseases

Week 10, Lecture 3, Plant Diseases - 2010-2011 Science...

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Unformatted text preview: 2010-2011 Science Students' CouncilPositions are available for next year’s SSC!Application forms for the following positions are due WEDNESDAY MARCH 4th, 4 PMAwards CommissionerSecretaryAbsolute Zero EditorSpeakerCharity Commissioner Deputy SpeakerStudent Services CommissionerWeb CommissionerStudent Events-at-Large CommissionerNomination forms for Department Reps & VPs are due MONDAY MARCH 22nd, 4 PMVisithttp://www.uwoscience.comor stop by the Council Office (NatSci 108) to pick up a formQuestions? Email [email protected] exam Thu, Apr 22, 7:00 pm5 questions from Oct lectures5 questions from Dec lectures5 questions from Mar lectures50 questions from new lectures65 questions (worth 30% of your final mark)PlusWriting assignment like Tutorial 10(worth 5% of your final mark)It is a WarB I O L O G Y 1 2 2 3Morphogenetic Changes in Hosts Brought about by Fungal infectionResistance responses (hypersensitivity)Galls, etiolation (elongation), witches’ broom (excess branching): mediated by fungal hormones (auxins and gibberellins) Stunting: root loss, phloem disruption, defoliationDiscoloration: loss of chlorophyll, pigment productionWilting: root rot, xylem disruption or plugging B I O L O G Y 1 2 2 318-Mar-10Gardiner618-Mar-10Gardiner7B I O L O G Y 1 2 2 3Plant Defences• Constructive (Passive)• Induced (Active)• Genetic InteractionsB I O L O G Y 1 2 2 3Constructive• Waxy cuticle• bark• Size and shape of stomata• Dense layers of hairs• Suberized cells • Collenchyma and sclerenchyma cells around vascular bundles18-Mar-10Gardiner1018-Mar-10Gardiner11B I O L O G Y 1 2 2 3Constructive• Secondary metabolites– Caffeine, nicotine, etc..B I O L O G Y...
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This note was uploaded on 04/18/2010 for the course BIOLOGY 1223 taught by Professor Gardiner/lajoie during the Fall '09 term at UWO.

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Week 10, Lecture 3, Plant Diseases - 2010-2011 Science...

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