我国松杉球壳孢生长适应性分化研究

doi:10.11707/j.1001-7488.20020214

林业科学 ›› 2002, Vol. 38 ›› Issue (2): 78-82.doi: 10.11707/j.1001-7488.20020214

我国松杉球壳孢生长适应性分化研究

吴小芹¹ 魏玉莲³ 何宗明²

南京林业大学森林资源与环境学院,南京210037；福建农林大学林学院,南平353001

收稿日期:2001-02-16 修回日期:1900-01-01 出版日期:2002-03-25 发布日期:2002-03-25

STUDY ON GROWTH ADAPTABILITY DIFFERENTIATION OF SPHAEROPSIS SAPINEA IN CHINA

Wu Xiaoqin¹,Weiyulian³,He Zhongming²

Resource and Environment College, Nanjing Forestry University Nanjing 210037;Forestry College, Fujian Agriculture and forestry university Nanping 353001

Received:2001-02-16 Revised:1900-01-01 Online:2002-03-25 Published:2002-03-25

摘要/Abstract

摘要：

对来自我国13个省份的松杉球壳孢(S.sapinea) 49～55个菌株进行生长适应性研究。在6种培养基质、系列温度梯度和系列pH值梯度条件下,各菌株的生长适应性存在较大的差异。在Czapek培养基上,有些菌株存在明显的营养适性分化。运用高次多项式数学模型拟合方法构建出各供试菌株0～72h的生长量随系列温度、系列pH值的变化曲线,从而确定了各菌株的平均最适生长温度为26.8℃,其中最低值为2 3.1℃(ZJ2) ,最高值为29.6℃(F1);平均最适生长pH值为pH5.6,其中最低值为pH4.4(F7),最高值为pH6.7(F5)。地理来源及其生境对松枯梢病菌菌株间的适温性变化似有一定影响,但与该菌对基质pH值变化的适应性似乎无明显关系。

关键词: 松树枯梢病, 松杉球壳孢, 生长适应性分化

Abstract:

Growth adaptability differentiation in 49～55 isolates of Sphaeropsis sapinea obtained from 13 provinces in China was studied. There were growth differences in various media, six temperatures and six pH values among the isolates. It is the first report to apply a mathematical function for establishing temperature and pH growth curve (0～72 h) to compare their optimum values and differences in the isolates of S. sapinea in China. The average optimum growth temperature of all isolates was 26.8℃ , and that of isolate ZJ2 was the lowest (23.1℃), the isolate F1 highest (29.6℃) . The average optimum growth pH was pH 5.6 ,and the isolate F7 lowest (pH 4.4), the isolate F5 highest (pH 6.7). Different geographic regions may have some effects on adaptation of isolates to temperature , but no obviously effect on adaptation to pH.

Key words: Pine shoot blight, Sphaeropsis sapinea, Growth adaptation

吴小芹魏玉莲何宗明. 我国松杉球壳孢生长适应性分化研究[J]. 林业科学, 2002, 38(2): 78-82.

Wu Xiaoqin;Weiyulian;He Zhongming. STUDY ON GROWTH ADAPTABILITY DIFFERENTIATION OF SPHAEROPSIS SAPINEA IN CHINA[J]. Scientia Silvae Sinicae, 2002, 38(2): 78-82.

[1]	叶建仁廖太林;. 松树枯梢病发生的立地条件及其主要诱因分析[J]. 林业科学, 2006, 42(9): 79-82.
[2]	吴小芹黄敏仁尹佟明. 中国松树枯梢病菌遗传多态性的RAPD分析[J]. 林业科学, 2000, 36(4): 32-38.
[3]	吴小芹. 中国松树枯梢病菌营养体亲和性研究[J]. 林业科学, 2000, 36(1): 47-52.

我国松杉球壳孢生长适应性分化研究

STUDY ON GROWTH ADAPTABILITY DIFFERENTIATION OF SPHAEROPSIS SAPINEA IN CHINA

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