In this study,we adopted maize variety Jundan 20 to explore the effect of Brassinosteroid(BR) treatment on Ca2+ distribution in maize seedling cells and resistance change of maize leaf against Fusarium proliferatum,aiming to verify the influence of BR on Ca2+ messenger system and its correlation with the enhancement of disease resistancein maize,thus providing the theoretical basis for illuminating the mechanism of BR in enhancing disease resistance of maize.The results showed that the number of disease infected sheath decreased after BR treatment along with shrunken lesion area,significant decrease of Ca2+ distribution in cell wall and obvious increase of Ca2+ distribution in intercellular space.In this way,the infected area will be more capable to resist softening compared with healthy tissues,and further fungus infection will be inhibited.
YOU Shi-dong
,
ZHANG Hai-li
,
GAO Jing
,
ZHANG Hao
,
HUANG Xin
,
LI Sheng-hui
,
WANG Feng-ru
,
DONG Jin-gao
. Effect of Brassinosteroid on the Physiological Characters and the Ca2+ Distribution in Maize[J]. Acta Agriculturae Boreali-Sinica, 2014
, 29(4)
: 151
-154
.
DOI: 10.7668/hbnxb.2014.04.026
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