title: [Research on rice blast, corn and broad bean rust leaves by FTIR spectroscopy].
abstract: Fourier transform infrared Spectroscopy (FTIR) was used to study healthy and diseased leaves of rice, corn, and broad bean. The results show that the infrared spectra of the leaves are mainly composed of the absorption bands of proteins and polysaccharide. The spectra are similar, but the differences were observed in the peak positions, shapes, and absorption ratios. The remarkable differences in correlation coefficients were also observed in the region of 1 800-1 000 cm(-1) of the second derivate spectra. The absorption ratio A1 056 /A1 652 of healthy rice leaves and rice blast leaves, A1 652/A2 920 of healthy broad bean leaves and leaves, A1 056/A2 920 of healthy corn and corn rust (non-lesion site), and A1 652/A2 920 of healthy corn and corn rust (lesion site) all show a decline from healthy to diseased leaves, showing that the contents of polysaccharide and the protein have some differences.
authors.affiliation: School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China. ouquanhong@163.com
authors.forename: Quan-Hong
authors.initials: QH
authors.lastname: Ou
authors.forename: Xing-Xiang
authors.initials: XX
authors.lastname: Zhao
authors.forename: Xiang-Ping
authors.initials: XP
authors.lastname: Zhou
authors.forename: Gang
authors.initials: G
authors.lastname: Liu
authors.forename: Lun
authors.initials: L
authors.lastname: Li
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
mesh_terms: D001487:Basidiomycota; D012275:Oryza / Q000382:microbiology*; D010935:Plant Diseases; D018515:Plant Leaves; D010940:Plant Proteins / Q000032:analysis; D011134:Polysaccharides / Q000032:analysis; D017550:Spectroscopy, Fourier Transform Infrared; D003313:Zea mays / Q000382:microbiology*
chemical_list: D010940:Plant Proteins; D011134:Polysaccharides