Paraveinal mesophyll: Review and survey of the subtribeErythrininae (Phaseoleae,Papilionoideae, Leguminosae) |
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| Authors: | Curt L. Brubaker Nels R. Lersten |
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| Affiliation: | (1) Department of Botany, Iowa State University, 50011-1020 Ames, IA, USA;(2) Present address: Commonwealth Scientific and Industrial Research Organisation, Division of Plant Industry, G. P. O. Box 1600, 2601 Canberra, ACT, Australia |
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| Abstract: | Paraveinal mesophyll (PVM) is a distinctive anatomical feature of the leaf mesophyll of some plant taxa that may represent a specialized physiological compartment. A comprehensive review of the 42 published references that mention PVM or similar cell layers and a survey of 121 of the 272 species of all nine genera of thePhaseoleae subtribeErythrininae demonstrate that PVM is nearly exclusively found inLeguminosae. InLeguminosae, PVM is either rare or absent in subfamilyCaesalpinioideae, uncommon inMimosoideae, and extensively distributed amongPapilionoideae. In subtribeErythrininae, PVM is ubiquitous inErythrina, and occurs in four other genera. ThreeErythrininae genera (Apios, Mucuna, andCochlianthus) lack PVM. Unique chloroplast-poor, enlarged conical cells (pellucid palisade idioblasts) occur in 80 species ofErythrina but not in any other genus ofErythrininae. |
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| Keywords: | Fabaceae Phaseoleae Erythrininae Apios Butea Cochlianthus Erythrina Mucuna Neorudolphia Rhodopis Spatholobus Strongylodon Leaf anatomy paraveinal mesophyll (PVM) pellucid palisade idioblasts (PPIs) |
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