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RELATION BETWEEN CHINESE FIR RESISTANCE TO GLOMERELLA CINGULATA AND PHENYLALANINE AMMONIA LYASE (PAL)

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF APPLIED & ENVIRONMENTAL BIOLOGY
Issue:
6
DOI:
10.3321/j.issn:1006-687X.2002.06.005
Key Word:
杉木;炭疽菌;抗病性;苯丙氨酸解氨酶

Abstract: 接种前的杉木(Cunninghamia lanceolata)针叶中,苯丙氨酸解氨酶(PAL)比活力与抗感病性之间不呈规律性相关.不同抗病性的杉木接种炭疽菌(Glomerella cingulata)后,PAL比活力均上升,接种5 d后,抗病性强的杉木PAL比活力比抗病性弱的杉木高.接种前以及接种后的各个时间段内,木质素含量都是抗病杉木比感病杉木高.绿原酸的含量与杉木的抗病性之间不呈规律性的相关,从绿原酸对炭疽菌菌丝生长影响的测定结果可知,杉木针叶的绿原酸浓度不足以构成对炭疽菌的影响.可见,接种后针叶的PAL比活力以及接种前、后针叶的木质素含量可作为衡量杉木抗病性的指标.图3 表2 参14

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