1979•Bulletin de la Société Botanique de France Lettres BotaniquesOpen access

Sieve-tube proportion in the secondary phloem of someCassiaspecies

A.K.M. Ghouse, Jamal Ahmad

Abstract

SummaryMicroscopic examination of the serial sections of conducting phloem of Cassia species has revealed that the percentage of sieve-tube elements differs in the different species and the area occupied by them varies from 12 to 26%. The need for a thorough investigation of structural details of phloem as a prelude to physiological studies related to translocation is emphasized.

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Key concepts: Phloem, Sieve tube element, Cassia, Sieve (category theory), Botany, Tube (container), Biology, Materials science