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|Table of Contents|

松针褐斑(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1999年06期
Page:
1-4
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
Studies on the Biological Specialization of the Toxin Producing by Brown Spot Needle Blight Fungus
Article ID:
1000-2006(1999)06-0001-04
Author(s):
Ye Jianren\ Qi Gaofu
College of Forest Resources and Environment Nanjing Forestry University Nanjing\ 210037
Keywords:
Brown spot needle blight( Lecanosticta acicola) Biological specializationFungi toxin
Classification number :
S763
DOI:
10.3969/j.jssn.1000-2006.1999.06.001
Document Code:
A
Abstract:
The root cutted seedlings of several pine species were treated with the toxin of brown spot needle blight fungus( Lecanosticta acicola), and the results showed that slash pine (Pinus elliottii Engelm.)and lobollolly pine( P.taeda L.)were very sensitive,masson pine ( P.massoniana Lamb.)was also sensitive,but japanese black pine( P.thunbergii Parl.)was not so sensitive.The results of toxin bioassay were simillar with the expression of natural infection in the field,but not totally identical.There were some differences in the reaction of slash pine resistant clones to the fungus toxin.The minimal effective concentration of the toxin was less than 100 μg/mL.The toxin was also virulent to Alternanthera philixeroides and Echinochloa crusgalli. The results suggested as though the toxin should be a kind of non host specific toxin(NHST),it actually possessed some biological specialization.

References

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Last Update: 1900-01-01