The Resistance gene was activated afteR the wheat was infected by Puccinia tRiticina，and the metabolism activity of Related Resistant mateRials was stRengthened then． This aRticle was aimed to Reveal the Relationship between the activity changes of defense enzymes of wheat neaR isogenic line( NIL) TcLR19 and the infection pRocess of Puccinia tRiticina． The infection pRocesses on wheat NIL TcLR19 of the leaf Rust Race 366 and 165 weRe obseRved by fluoRescent staining． AccoRding to that Result， the activity changes of PAL and PO weRe deteRmined when the TcLR19 was inoculated with 366 ( infection type was 0; ) and 165 ( infection type was 1) at diffeRent times． The Results showed that theRe weRe two activity peaks of the PAL in TcLR19 at 24 h and 72 h afteR inoculated by leaf Rust Race 366，and the PO activity peak appeaRed at 48 h． DuRing this time，cell aRea undeRgoing HR was Raising fRom 24 hpi until 96 hpi． While， theRe was a same tendency on the combination of 165 and TcLR19． But all of the numbeRs weRe loweR than the otheR combination． The Resistance of wheat to leaf Rust fungus was positively coRRelative with the expRession stRengthen of defence Reaction．
YAN Ai-hua
,
ZHANG Li-feng
,
ZHANG Yun-wei
,
LIU Meng
,
HOU Chun-yan
,
WANG Dong-mei
. Relationship between the Activity Changes of Defense Enzymes of Wheat NeaR Isogenic Line TcLR19 and the Infection PRocess of Puccinia tRiticina[J]. Acta Agriculturae Boreali-Sinica, 2013
, 28(1)
: 221
-226
.
DOI: 10.3969/j.issn.1000-7091.2013.01.039
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