CONSTITUTION OF AMPHICRIBRAL VASCULAR BUNDLES IN CAPSULE OF PAPAVER-SOMNIFERUM LINN
CONSTITUTION OF AMPHICRIBRAL VASCULAR BUNDLES IN CAPSULE OF PAPAVER-SOMNIFERUM LINN
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DOI:
10.1086/336698
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发表时间:
1973-01-01
影响因子:
--
通讯作者:
KAPOOR, LD
中科院分区:
文献类型:
--
作者:
KAPOOR, LD
Transverse sections of receptacle and capsule of Papaver somniferum in acropetal succession reveal the distribution and branching of vascular bundles to the sepals, petals, and stamens. Eventually three or four of these vascular bundles fuse to form 11 amphicribral bundles which supply the base of the capsule. In the process of fusion, the xylem assumes a reniform shape in transverse section. In each bundle the phloem extends around one side of the xylary strand. Two adjacent vascular bundles with their xylary strands facing each other join. Xylem joins xylem, and phloem becomes continuous around the resulting xylem strand to form an amphicribral bundle. Ascending toward the distal end of the capsule, these bundles bend and become progressively reduced from an amphicribral to a collateral type of vascular bundle.