Comparative anatomy and salt management of Sonneratia caseolaris (L.) Engl. (Lythraceae) grown in saltwater and freshwater.
Comparative anatomy and salt management of Sonneratia caseolaris (L.) Engl. (Lythraceae) grown in saltwater and freshwater.
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作者：
Tatongjai S;Kraichak E;Kermanee P
海桑 (Sonneratia caseolaris) 是红树林的先驱物种。它可以在咸水和淡水中自然生长。该研究旨在调查和比较在不同条件下生长的 S. caseolaris 植物的解剖特征以及它们如何应对盐度。研究了根、茎、叶柄和叶片的解剖特征。使用石蜡法将植物样品制备成永久载玻片，而使用滑动切片机技术将木材样品制成永久载玻片。对叶片进行组织清理并对木材进行扫描电子显微镜分析。此外，还检查了各种器官和组织中的氯化钠含量。结果发现，两种条件下的索根、茎和叶片表现出一些不同的解剖特征。周皮是咸水根中的重要组织。在咸水植物的气托、叶柄、茎和叶片中观察到鞣质细胞，但在淡水植物的气托和叶片中未发现。盐水条件下叶肉厚度较低。咸水条件下的容器密度显着高于淡水条件下的容器密度，而淡水条件下的容器直径显着大于咸水条件下的容器直径。由此可见，根周皮在排盐过程中发挥着重要作用，鞣质细胞的发生与排盐有关。
Sonneratia caseolaris is a pioneer species in mangrove. It can naturally grow in both saltwater and freshwater. The study was aimed at investigating and comparing the anatomical character of the S. caseolaris plants growing in different conditions and how they coped with salinity. The anatomical characteristics of roots, stems, petioles and leaf blade were investigated. The plant samples were prepared into permanent slides using a paraffin method, while the wood samples were made into permanent slides using a sliding microtome technique. Tissue clearing of leaf blade and scanning electron microscopic analysis of wood were performed. In addition, sodium chloride content in various organs and tissues was examined. It was found that cable root, stem and leaf blade showed some different anatomical characteristics between the two conditions. Periderm is a prominent tissue in saltwater roots. Tanniferous cells were observed in pneumatophores, petioles, stems and leaf blades of saltwater plants, but not found in pneumatophores and lamina of freshwater plants. Mesophyll thickness was lower in the saltwater condition. The vessel density was significantly higher in the saltwater condition than in the freshwater condition, whereas the vessel diameters in the freshwater condition were significantly higher than those in the saltwater condition. From the results, it can be concluded that root periderm plays an important role in salt exclusion, and the occurrence of tanniferous cells is associated with salt elimination.
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影响因子：
5.8
作者：
Defew, LH;Mair, JM;Guzman, HM
通讯作者：
Guzman, HM
影响因子：
2
作者：
KIMURA, M;WADA, H
通讯作者：
WADA, H
影响因子：
2.7
作者：
CLOUGH, BF;SIM, RG
通讯作者：
SIM, RG
影响因子：
3
作者：
Mauseth, JD;Plemons-Rodriguez, BJ
通讯作者：
Plemons-Rodriguez, BJ
DOI：
10.1071/pp97161
发表时间：
1998-01-01
期刊：
AUSTRALIAN JOURNAL OF PLANT PHYSIOLOGY
影响因子：
--
作者：
Delfine, S;Alvino, A;Loreto, F
通讯作者：
Loreto, F