Lecture 16 - !"#$%&'#(%)*+,-+.)%#(+.%(/,),01+...

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Unformatted text preview: !"#$%&'#(%)*+,-+.)%#(+.%(/,),01+ 2(%03#0+%#+4#5%*3,#+ disease cycle! 6%3#3#0+7#(81+ appressorium viruses use genetic entry by coding for the host 9':/%#3:%)+!,8:'+ wax layer cuticle layer penetration peg ;8'%<#0+="80,8+.8'**"8'+ spore with appressorium pathogen strengthens wall wheat rust needs free water on surface (to build up p ressure) warm temperature to enter >%))+8'3#-,8:'$+ 2,)"('+?8,$":<,#+ @0)1:'8,)A+,(/'8*B+ decreases water concentration water moves across concentration gradient; water moves via osmosis down penetration peg >%('8+"?(%C'+ 7#D1&'*+ control the transcription & translation of enzyme; control the enzyme! not wasting energy plant defenses... will wait until critical mass to start p roduction .)%#(+;'))*+%*+%#+7#538,#&'#(+ lamellae made of pectins cell walls made of cellulose ;"<#+@?,)1'*('8+,-+ ;IJ+K+;IL+,M10'#%('$+ -%N1+%:3$*+%#$+0)1:'8,)B+ 4E+9,)[email protected]?3$+G3H8%81B+ .)%#(+;'))*+%*+%#+7#538,#&'#(+ 7#D1&'*+ 7#D1&'*+ G,O+)'5')+:,#*<("<5'+ :"<#%*'+?8,$":<,#+3#+*?,8'+ adhesion- break down cutin to build adhesion; able to colonize produces small amounts of enzyme as a way to signal that it's landed on cutin and not a windshield! induces production of more cutinase !"#$%&"'()*+#,)%"'(-E+*?E+,&#&( 7#D1&'*+ •  P#+?)%#(+*"8-%:'A+:"<#%*'+8')'%*'*+:"<#+&,#,&'8*+ •  2?,8'+*'#*'*+?8'*'#:'+,-+:"<#+&,#,&'8*+ 7#D1&'*+ •  9,#,&'8*+%:(+%*+*30#%)+(,+3#:8'%*'+:"<#%*'+?8,$":<,#+ •  ;"<#%*'+?8,$":<,#+!"#$%&#+ •  ;"<:)'+$'08%$'$A+0'8&+("H'+:%#+?'#'(8%('+ 7#D1&'*+ pectobacterium; e rwinia •  G,O+)'5')+?':<#%*'+ ?8,$":<,#+3#+3#$353$"%)+ H%:('83%)+:'))*+ •  Q",8"&+*'#*3#0+3#$":'$+ ?':<#%*'+?8,$":<,#R+/30/S )'5')+:,,8$3#%('$+%N%:C+ O3(/+&")<?)'+'#D1&'*T+ -./0)1$/0.%&"'($0%)#.,2/"'(( @3%4&5&$(/$%)0)6)%$(*"H*?E+$0%)#.,2/$B+ 7#D1&'*+ structure; found in xylem of wood structure very resistant in cell walls brown rot fungi- degrades white cellulose, leaves brown lignin white rot fungi- eats dark lignin, leaves cellulose >/3('+8,(+-"#03+ =,M3#*+ U,#/,*(S*?':3V:+=,M3#*+ .%")+Y%:/3+ introduced as inorganic nitrogen --> organic form UWX+ 6)"(%&%('+ 6)"(%&3#'+ 21#(/'(%*'+ no enzyme = no glutamine build up of ammonia; becomes toxic destroys chloroplast chlorosis plant diiiiies from no photosynthesis 6)"(%&3#'+ interactive; free radicals highly reactive to oxidize things inactivates active oxygen species 7.%/)#,)%$(5$58&5$.+,#+*%:8'$+H%&H,,+ U,#/,*(S*?':3V:+=,M3#*+ W,*(S*?':3V:+=,M3#*+ affected breedling line U;2F+Z'?(E+.)%#(+.%(/,),01+ ZEYE+G%#0*(,#[+F6\+ W,*(S*?':3V:+=,M3#*+ \)('8#%83%+=,M3#+9,$'*+,-+\:<,#+ 68,O(/+]'0")%(,8*+ stem elongation .%(/,0'#*+K+./1(,/,8&,#'*+ \"M3#+?8,$":<,#+H1+-#."8)')5$#(#$6$#0$5)&(3#+,)35'+ 63HH'8'))3#+?8,$":<,#+H1+9&11.%.::$(;"<&="%)&(3#+83:'+ .,)1*%::/%83$'*+ ^'1+;,#:'?(*+ ...
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This note was uploaded on 12/16/2011 for the course PLP 3022 taught by Professor Richter during the Fall '11 term at University of Florida.

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