Comparative Foliar and Petiole Anatomy of Some Members of the Genus Dieffenbachia Schott in the Family Araceae

Arogundade, Oluwabunmi Okerinmola; Adedeji, O.

doi:10.15835/nsb9110022

Cited by 8 publications

(11 citation statements)

References 6 publications

(8 reference statements)

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“…We found that when a difference in cell solidity was present, the abaxial cells tended to have more undulations (lower solidity, Fig. a), in line with the qualitative literature (Linsbauer, ; Watson, ; Arogundade & Adedeji, ).…”

Section: Resultssupporting

confidence: 89%

“…Sparse qualitative observations indicated that abaxial cells tend to have more undulate margins than adaxial cells (Linsbauer, ; Watson, ; Arogundade & Adedeji, ). To test this across our sampling, we calculated the difference between the average adaxial solidity and the average abaxial solidity in the 146 species for which we had data from both sides of the leaf (81 eudicots, 30 monocots, 28 ferns; see the Materials and Methods section).…”

Section: Resultsmentioning

confidence: 99%

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Of puzzles and pavements: a quantitative exploration of leaf epidermal cell shape

et al. 2018

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Summary Epidermal cells of leaves are diverse: tabular pavement cells, trichomes, and stomatal complexes. Pavement cells from the monocot Zea mays (maize) and the eudicot Arabidopsis thaliana (Arabidopsis) have highly undulate anticlinal walls. The molecular basis for generating these undulating margins has been extensively investigated in these species. This has led to two assumptions: first, that particular plant lineages are characterized by particular pavement cell shapes; and second, that undulatory cell shapes are common enough to be model shapes. To test these assumptions, we quantified pavement cell shape in epidermides from the leaves of 278 vascular plant taxa. We found that monocot pavement cells tended to have weakly undulating margins, fern cells had strongly undulating margins, and eudicot cells showed no particular undulation degree. Cells with highly undulating margins, like those of Arabidopsis and maize, were in the minority. We also found a trend towards more undulating cell margins on abaxial leaf surfaces; and that highly elongated leaves in ferns, monocots and gymnosperms tended to have highly elongated cells. Our results reveal the diversity of pavement cell shapes, and lays the quantitative groundwork for testing hypotheses about pavement cell form and function within a phylogenetic context.

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Of puzzles and pavements: a quantitative exploration of leaf epidermal cell shape

et al. 2018

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“…to have more undulations (lower solidity, Fig. 2a), in line with the qualitative literature 16,53 . The 293…”

Section: Abaxial Leaf Surfaces Present More Undulate Cells 287supporting

confidence: 90%

Of puzzles and pavements: a quantitative exploration of leaf epidermal cell shape

Vőfély

Gallagher

Pisano

et al. 2018

Preprint

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The epidermal cells of leaves lend themselves readily to observation and display 1 many shapes and types: tabular pavement cells, complex trichomes, and stomatal 2 complexes 1 . Pavement cells from Zea mays (maize) and Arabidopsis thaliana (arabidopsis) 3both have highly undulate anticlinal walls and are held as representative of monocots and 4 eudicots, respectively. In these two model species, we have a nuanced understanding of the 5 molecular mechanisms that generate undulating pavement cell shape 2-9 . This model-system 6 dominance has led to two common assumptions: first, that particular plant lineages are 7 characterized by particular pavement cell shapes; and second, that undulatory pavement cell 8shapes are common enough to be model shapes. To test these assumptions, we quantified 9 pavement cell shape in the leaves of 278 vascular plant taxa and assessed cell shape metrics 10 across large taxonomic groups. We settled on two metrics that described cell shape diversity 11well in this dataset: aspect ratio (degree of cell elongation) and solidity (a proxy for margin 12 undulation). We found that pavement cells in the monocots tended to have weakly undulating 13 margins, pavement cells in ferns had strongly undulating margins, and pavement cells in the 14 eudicots showed no particular degree of undulation. Indeed, we found that cells with strongly 15undulating margins, like those of arabidopsis and maize, were in the minority in seed plants. 16At the organ level, we found a trend towards cells with more undulating margins on the abaxial 17 leaf surface vs. the adaxial surface. We also detected a correlation between cell and leaf 18 aspect ratio: highly elongated leaves tended to have highly elongated cells (low aspect ratio), 19but not in the eudicots. This indicates that while plant anatomy and plant morphology can be 20 connected, superficially similar leaves can develop through very different underlying growth 21 dynamics (cell expansion and division patterns). This work reveals the striking diversity of 22 pavement cell shapes across vascular plants, and lays the quantitative groundwork for testing 23 hypotheses about pavement cell form and function. 24

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“…In their study, they reported that the outline of midrib and petiole and vascular bundle characteristics (number and arrangement) were important features that can delimit the genus. In the same way, Arogundade and Adedeji (2017) and Baruah et al (2017) found the foliar and petiole anatomy as a diagnostic feature in some members of the Dieffenbachia Schott (Araceae) and Smilax (Smilacaceae). Our study corroborates these previous reports.…”

Section: Tendrilmentioning

confidence: 67%

Comparative morphological and anatomical traits of Adenia lobata (Jacq) Engl. and Adenia cissampeloides (Planch. ex Benth.) Harms. (Passifloraceae)

Ekeke

Agogbua

2022

Not Sci Biol

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Comparative morph-anatomical studies of leaf, stem, and tendril were carried out on two Adenia species to enhance the delimitation of the species. The Adenia species have alternate phyllotaxy, simple leaf, glands at the base of their petioles, hypostomatic, similar stomata types, solitary crystal, similar vascular bundle type, tanniferous cells, and dorsiventral leaves. Both species have tetracytic and anomocytic stomata in addition A. lobata had paracytic, and anisocytic stomata. Mucilaginous cells or cavities occurred in the petiole, leaf lamina, midrib, stem, and the tendril of A. cissampeloides but were only observed in the tendril and upper epidermis of A. lobata. The mucilaginous and tanniferous cells were more abundant in A. cissampeloides compared to A. lobata and could account for the reason why A. cissampeloides is used as fish poison. The sclereids in A. cissampeloides are surrounded by lignified cells while the ones in A. lobata do not have such feature. Also, xylem cells in the A. cissampeloides tendril are thicker compared to A. lobata. This could be attributed to the fact that the fruits in A. cissampeloides are directly attached to the tendril. The outline and number of vascular bundles in the midrib and petiole differed among the two species. In A. lobata, the ridge averaged 130 µm thick and 73.76 µm in A. cissampeloides. The analysed characteristics are valuable in the delimitation of these Adenia species.

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Comparative Foliar and Petiole Anatomy of Some Members of the Genus Dieffenbachia Schott in the Family Araceae

Cited by 8 publications

References 6 publications

Of puzzles and pavements: a quantitative exploration of leaf epidermal cell shape

Of puzzles and pavements: a quantitative exploration of leaf epidermal cell shape

Of puzzles and pavements: a quantitative exploration of leaf epidermal cell shape

Comparative morphological and anatomical traits of Adenia lobata (Jacq) Engl. and Adenia cissampeloides (Planch. ex Benth.) Harms. (Passifloraceae)

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