INTERCALARY GROWTH IN AERIAL SHOOT OF ELEOCHARIS ACUTA R BR PRODR .I. STRUCTURE OF GROWING ZONE
INTERCALARY GROWTH IN AERIAL SHOOT OF ELEOCHARIS ACUTA R BR PRODR .I. STRUCTURE OF GROWING ZONE
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DOI：
10.1093/oxfordjournals.aob.a083943
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发表时间：
1965-01-01
期刊：
影响因子：
4.2
通讯作者：
EVANS, PS
中科院分区：
文献类型：
--
作者：
EVANS, PS
本文对马蹄（Eleocharis acuta R.）Br.产品细胞分裂在薄壁组织中最多，在板状薄壁组织中最少。在所有组织检查，除了板薄壁组织，细胞长度与细胞分裂的数量呈负相关。发生在居间分生组织维管组织中的细胞分裂被认为是居间生长的一部分，而不是原形成层的正常发育。成熟的木质部和韧皮部存在于穿过分生区的较大的维管束中，并且木质部管胞显示出传导性。连接相邻维管束的横索被认为在水分的传导中起重要作用。
The numbers and distribution of cell division and the cell lengths have been determined for the various tissues in the intercalary meristem of Eleocharis acuta R. Br. Prodr. Cell divisions are most numerous in the chlorenchyma tissue and fewest in the plate parenchyma. In all tissues examined except the plate parenchyma, cell length is inversely correlated with numbers of cell divisions. The cell divisions which occur in the vascular tissue in the intercalary meristem are regarded as being a part of the intercalary growth and not as a normal development of a procambium. Mature xylem and phloem are seen to be present in the larger vascular bundles right through the meristematic zone, and the xylem tracheids are shown to be conductive. The transverse strands connecting adjacent vascular bundles are considered to be important in the conduction of water.