| 摘要: |
| 应用根系分析软件(WinRHIZO)获得了大灰藓(Hypnum plumaeforme Wils.)、大羽藓(Thuidium cymbifolium (Dozy et Molk.) Dozy et Molk.)和密叶绢藓(Entodon compressus (Hedw.) Müll.Hal.)32份标本的配子体枝条长度、投影面积、表面积、枝条平均直径、长度/体积、总体积、枝尖数、枝的分叉数、枝交叠数等10个形态参数,基于这些数据,应用聚类分析和无度量多维标定生成了这32份标本的排序和聚类图.聚类与排序结果表明:32份标本可以分成3组,与大灰藓、大羽藓和密叶绢藓有很好的对应性.单因素方差分析表明这32份标本的10个形态指标在大灰藓、密叶绢藓、大羽藓之间多数存在显著差异.因此,配子体的这10个性状在研究的3类侧蒴藓类植物中具有相对的稳定性,根系分析仪在侧蒴藓类植物生理生态学研究上具有潜在的应用价值. |
| 关键词: 侧蒴藓类植物 排序 聚类 单因素方差分析 根系分析仪 |
| DOI： |
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| 基金项目:国家自然科学基金(30970184,30570121);上海市科委重点项目(11391901200;12490502700);上海市教委重点学科(J50401);上海师范大学前瞻性预研项目(DYL201202) |
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| On application potential of root analyzer in ecological and physiological studies of pleurocarpous mosses |
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LI Qian1, FANG Fang2, YU Jing1, GUO Shuiliang1, ZHOU Xiang1
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1.College of Life and Environment Sciences,Shanghai Normal Universit;2.College of Chemistry and Life Science,Zhejiang Normal Universtiy
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| Abstract: |
| A software of root analyzer (WinRHIZO) was used to analyze the gametophytic morphology of 32 specimens of Hypnum plumaeforme Wils., Thuidium cymbifolium (Dozy et Molk.) Dozy et Molk.and Entodon compressus (Hedw.) Müll.Hal..The length of stems and branches,projected area,surface area,average diameter,length/volume,volume,tips,forks,and the crossings number of links of gametophytes of these 32 specimens were obtained.Based on the above morphological parameters,the cluster dendrogram and ordination plots were produced by using cluster analysis and non-metric multi-dimensional scaling method.The results showed that the 32 specimens could be divided into three groups,which match well with Hypnum plumaeforme Wils., Thuidium cymbifolium (Dozy et Molk.) Dozy et Molk.and Entodon compressus (Hedw.) Müll.Hal.,respectively.One-way ANOVA of the 10 characters among the three species shows that most morphological parameters are statistically different among the above three species.Therefore,the above 10 characters are relative stable in the genus level,the root analyzer and its attached software have a potential in the physiological and ecological studies in pleurocarpous mosses. |
| Key words: pleurocarpous moss ordination analysis cluster analysis one-way ANOVA root analyzer |
