Micro-morphology of Wild Ovary-Glabrous Tea Germplasms in Fujian
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摘要:
目的 观察云霄、诏安野生茶种质资源子房微形态,为福建特色茶树种质资源的发掘、鉴定提供参考依据。 方法 利用冷场发射扫描电镜对29份野生茶种质资源的子房微形态性状进行观察分析。 结果 福建云霄县和诏安县的野生茶种质资源分为秃房资源和茸房资源2种类型,其中子房茸毛少、极少和秃房种质占72.4%,茸房种质子房茸毛密度存在差异且茸毛主要分布在子房上部;子房外壁纹饰分为凹陷型、平展型和凸起型3种类型,云霄种质子房外壁纹饰多为凹陷型,诏安种质子房外壁纹饰多为平展型。 结论 福建首次发现野生秃房茶树群体种质资源,该群体的茶树子房微形态特征具有明显的多样性,且云霄、诏安野生茶种质资源子房外壁纹饰地域差异明显。 Abstract:Objective Micro-morphology of ovaries from the wild tea germplasms in Yunxiao and Zhao'an was examined to facilitate the identification and resource collection of tea germplasms in Fujian. Method The morphological characteristics of the ovaries from 29 wild tea germplasms were studied under a field emission scanning electron microscope (FE-SEM). Result The germplasms collected in Yunxiao and Zhao'an were classified by the morphology of their ovaries into the glabrous and trichome types. Those had a few, scarce or none trichomes on the ovary accounted for 72.4% of all. The trichomes were found mainly on the top of an ovary that determined the overall density and classification of a germplasm. The exine ornamentation on an ovary could be concave, flat or convex in appearance. Those on the ovaries of Yunxiao germplasms were mostly concave, while those of Zhao'an largely flat. Conclusion This study made the first report on the abovementioned observations. The micro-morphology of the ovary-glabrous germplasms displayed distinct difference on the exine ornamentation between the cultivars collected from Yunxiao and Zhao'an. -
Key words:
- Fujian /
- wild tea plant /
- germplasm resource /
- ovary-glabrous /
- ovary trichome /
- micro-morphology
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表 1 云霄、诏安野生茶树秃房种质的子房微形态性状
Table 1. Ovarian micro-morphological traits of ovary-glabrous germplasms from Yunxiao and Zhao'an
序号 No. 种质资源 Germplasm 树型 Tree shape 外壁纹饰 Exine ornamentation 照片编号 Photo number 1 云霄小帽山02 Yunxiaoxiaomaoshan02 小乔木 Small arbor 凹陷 Concave 16A 2 云霄小帽山05 Yunxiaoxiaomaoshan05 小乔木 Small arbor 凹陷 Concave 17A 3 云霄小帽山07 Yunxiaoxiaomaoshan07 小乔木 Small arbor 凹陷 Concave 18A 4 云霄大帽山01 Yunxiaodamaoshan01 小乔木 Small arbor 凹陷 Concave 19A 5 云霄乌山02 Yunxiaowushan02 小乔木 Small arbor 凹陷 Concave 20A 6 云霄小帽山10 Yunxiaoxiaomaoshan10 小乔木 Small arbor 平展 Flat 21A 7 云霄小帽山13 Yunxiaoxiaomaoshan13 小乔木 Small arbor 凹陷 Concave 22A 8 诏安龙伞01 Zhao'anlongsan01 小乔木 Small arbor 平展 Flat 23B 9 诏安龙伞02 Zhao'anlongsan02 小乔木 Small arbor 平展 Flat 24B 10 诏安龙伞03 Zhao'anlongsan03 小乔木 Small arbor 平展 Flat 25B 11 诏安龙伞06 Zhao'anlongsan06 小乔木 Small arbor 凸起 Convex 26B 12 诏安龙伞岽01 Zhao'anlongsandong01 小乔木 Small arbor 平展 Flat 27B 13 诏安龙伞岽02 Zhao'anlongsandong02 小乔木 Small arbor 平展 Flat 28B 14 诏安大茶树 Zhao'andachashu 小乔木 Small arbor 平展 Flat 29B 表 2 云霄、诏安野生茶树茸房种质的子房微形态性状
Table 2. Ovarian micro-morphological traits of ovary-trichome germplasms from Yunxiao and Zhao'an
序号
No.种质资源
Germplasm树型
Tree
shape外壁纹饰
Exine
ornamentation茸毛分布
Trichome
distribution茸毛多少
How much
trichome茸毛长度/μm
Trichome
length/μm照片编号
Photo number1 云霄小帽山01 Yunxiaoxiaomaoshan01 小乔木
Small arbor凹陷 Concave 满披茸毛
Covered with trichomes多 Numerous 688.72±107.85 a 1A 2 云霄小帽山03 Yunxiaoxiaomaoshan03 小乔木
Small arbor凹陷 Concave 多数位于顶部
Mostly on top极少 Few 542.11±247.74 a 2A 3 云霄小帽山04 Yunxiaoxiaomaoshan04 小乔木
Small arbor凹陷 Concave 集中于顶部和上部
Focused on the top and the upper portion中 Medium 281.58±47.47 a 3A 4 云霄小帽山06 Yunxiaoxiaomaoshan06 小乔木
Small arbor凹陷 Concave 集中于顶部和上部
Focused on the top and the upper portion中 Medium 461.42±82.84 a 4A 5 云霄乌山01 Yunxiaowushan01 小乔木
Small arbor平展 Flat 多数位于顶部
Mostly on top极少 Few 151.31±26.25 a 5A 6 云霄大帽山02 Yunxiaodamaoshan02 小乔木
Small arbor平展 Flat 集中于顶部和上部
Focused on the top and the upper portion中 Medium 395.85±61.82 a 6A 7 云霄小帽山08 Yunxiaoxiaomaoshan08 小乔木
Small arbor凹陷 Concave 多数位于顶部
Mostly on top极少 Few 183.10±54.22 b 7A 8 云霄小帽山09 Yunxiaoxiaomaoshan09 小乔木
Small arbor凹陷 Concave 集中于顶部和上部
Focused on the top and the upper portion中 Medium 714.27±87.21 a 8A 9 云霄小帽山11 Yunxiaoxiaomaoshan11 小乔木
Small arbor凹陷 Concave 集中于顶部和上部
Focused on the top and the upper portion中 Medium 437.21±105.10 a 9A 10 云霄小帽山12 Yunxiaoxiaomaoshan12 小乔木
Small arbor凹陷 Concave 满披茸毛
Covered with trichomes多 Numerous 506.08±104.22 a 10A 11 诏安龙伞04 Zhao'anlongsan04 小乔木
Small arbor平展 Flat 多数位于顶部
Mostly on top极少 Few 301.27±109.75 a 11B 12 诏安龙伞05 Zhao'anlongsan05 小乔木
Small arbor平展 Flat 集中于顶部和上部
Focused on the top and the upper portion中 Medium 275.27±61.24 a 12B 13 诏安龙伞07 Zhao'anlongsan07 小乔木
Small arbor平展 Flat 多数位于顶部
Mostly on top少 Rare 272.21±63.85 a 13B 14 诏安龙伞08 Zhao'anlongsan08 小乔木
Small arbor凸起 Convex 多数位于顶部
Mostly on top少 Rare 322.36±43.13 a 14B 15 诏安龙伞09 Zhao'anlongsan09 小乔木
Small arbor凸起 Convex 多数位于顶部
Mostly on top少 Rare 270.42±50.37 a 15B 注:同列数据后不同小写字母表示在0.05水平下差异显著。
Note: Data with different lowercase letters on same column indicate significant difference at 5% level. -
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