Authors:
Toan Le Thanh* Kanjana Thamanu
, Rungthip Sangpueak
, Miyuki Kusajima
, Hideo Nakashita
, Sopone
Wongkaew
, Piyaporn Phansak
, Narendra Kumar Papathoti
and Natthiya Buensanteai ,Vietnam |
Abstract:
The aim of this study was to compare biochemical traits of two rice leaf positions in induced
resistance by 1,2-Benzisothiazol-3 (2H)-one 1,1-dioxide (BIT) at a concentration of 2 mM
against leaf blight in rice plants. The results showed that BIT-induced rice leaves had many
intense peaks which represented defensive carbohydrates, proteins and lipids. At leaves above
the inoculated leaf, exogenous BIT treatment had higher peaks of lipids and proteins, such as
2920, 2851, 1736 cm-1, and the structural change of amide I from alpha helix type at the peak of
1655 cm-1 to ?-sheet type at 1636 cm-1. At rice leaves below the inoculated leaf, its Fourier
transform infrared peak assignments of the BIT-induced treatment had significantly spectral
peaks at some vibrational peaks of lipids and carbohydrates, such as 2920, 2851, 1319, 1103 and
1040 cm-1. In this study, the elicitor of BIT reduced leaf blight severity by approximately
34.82%.
|
