Comparative study of upper and lower leaf epidermis and trichomes in some species belong to Malvaceae family

: Leaf characteristics of four genera represented by nine species belonging to the family Malvaceae were examined: Althaea ludwigii L., Gossypium herbaceum L., Hibiscus cannabinum L., H. sabdariffa L., H. rosa-sinensis L., H. tiliaceus L., Malva sylvestris L., M. nicaeensis All., and M. parviflora L...

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Main Authors: Sadeq S.K. Al-Taie, Sahar A.A.M. Al-Saadi
Format: Article
Language:English
Published: University of Basrah 2025-06-01
Series:Maǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ
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Online Access:https://www.bjas.bajas.edu.iq/index.php/bjas/article/view/2515
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author Sadeq S.K. Al-Taie
Sahar A.A.M. Al-Saadi
author_facet Sadeq S.K. Al-Taie
Sahar A.A.M. Al-Saadi
author_sort Sadeq S.K. Al-Taie
collection DOAJ
description : Leaf characteristics of four genera represented by nine species belonging to the family Malvaceae were examined: Althaea ludwigii L., Gossypium herbaceum L., Hibiscus cannabinum L., H. sabdariffa L., H. rosa-sinensis L., H. tiliaceus L., Malva sylvestris L., M. nicaeensis All., and M. parviflora L. The results reveal differences in the shape of anticlinal wall cells, stomatal frequency, stomatal index, and trichome types among the species. Additionally, the shape of the anticlinal wall cells is straight in A. ludwigii, G. herbaceum, H. sabdariffa and H. tiliaceu species; sinuate in H. cannabinum and H. rosa-sinensis and undulate or strongly undulate in Malva species. On average epidermal cells in the upper epidermis of M. sylvestris were 91.25 µm long, while on average, they were 27.18 µm long in H. tiliaceus. The current results identified five different stomatal patterns: anomocytic (rununculaceous); hemiparacytic; paracytic; anisocytic (cruciferous) and diacytic. Trichomes on the leaves are recognized as unicellular non-glandular in M. parviflora, M. nicaeensis, and M. sylvestris, glandular in H. rosa-sinensis, G. herbaceum, and H. sabdariffa, and stellate hairs in M. nicaeensis, M. parviflora, M. sylvestris and A. ludwigii. The stomatal index varies between species and on the upper and lower epidermis. The highest stomatal index was 50.98 in H. sabdariffa on the lower surface and the lowest 7.11 on the upper surface.
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series Maǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ
spelling doaj-art-d311072bfeed435a9fb81d7eca571e022025-08-20T03:29:14ZengUniversity of BasrahMaǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ1814-58682520-08602025-06-01381Comparative study of upper and lower leaf epidermis and trichomes in some species belong to Malvaceae familySadeq S.K. Al-Taie0Sahar A.A.M. Al-Saadi1Department of Biology, College of Science, University of Misan, IraqDepartment of Biology, College of Science, University of Basrah, Iraq: Leaf characteristics of four genera represented by nine species belonging to the family Malvaceae were examined: Althaea ludwigii L., Gossypium herbaceum L., Hibiscus cannabinum L., H. sabdariffa L., H. rosa-sinensis L., H. tiliaceus L., Malva sylvestris L., M. nicaeensis All., and M. parviflora L. The results reveal differences in the shape of anticlinal wall cells, stomatal frequency, stomatal index, and trichome types among the species. Additionally, the shape of the anticlinal wall cells is straight in A. ludwigii, G. herbaceum, H. sabdariffa and H. tiliaceu species; sinuate in H. cannabinum and H. rosa-sinensis and undulate or strongly undulate in Malva species. On average epidermal cells in the upper epidermis of M. sylvestris were 91.25 µm long, while on average, they were 27.18 µm long in H. tiliaceus. The current results identified five different stomatal patterns: anomocytic (rununculaceous); hemiparacytic; paracytic; anisocytic (cruciferous) and diacytic. Trichomes on the leaves are recognized as unicellular non-glandular in M. parviflora, M. nicaeensis, and M. sylvestris, glandular in H. rosa-sinensis, G. herbaceum, and H. sabdariffa, and stellate hairs in M. nicaeensis, M. parviflora, M. sylvestris and A. ludwigii. The stomatal index varies between species and on the upper and lower epidermis. The highest stomatal index was 50.98 in H. sabdariffa on the lower surface and the lowest 7.11 on the upper surface. https://www.bjas.bajas.edu.iq/index.php/bjas/article/view/2515Epidermal cellsLeafMalvaceaeStomataTrichome
spellingShingle Sadeq S.K. Al-Taie
Sahar A.A.M. Al-Saadi
Comparative study of upper and lower leaf epidermis and trichomes in some species belong to Malvaceae family
Maǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ
Epidermal cells
Leaf
Malvaceae
Stomata
Trichome
title Comparative study of upper and lower leaf epidermis and trichomes in some species belong to Malvaceae family
title_full Comparative study of upper and lower leaf epidermis and trichomes in some species belong to Malvaceae family
title_fullStr Comparative study of upper and lower leaf epidermis and trichomes in some species belong to Malvaceae family
title_full_unstemmed Comparative study of upper and lower leaf epidermis and trichomes in some species belong to Malvaceae family
title_short Comparative study of upper and lower leaf epidermis and trichomes in some species belong to Malvaceae family
title_sort comparative study of upper and lower leaf epidermis and trichomes in some species belong to malvaceae family
topic Epidermal cells
Leaf
Malvaceae
Stomata
Trichome
url https://www.bjas.bajas.edu.iq/index.php/bjas/article/view/2515
work_keys_str_mv AT sadeqskaltaie comparativestudyofupperandlowerleafepidermisandtrichomesinsomespeciesbelongtomalvaceaefamily
AT saharaamalsaadi comparativestudyofupperandlowerleafepidermisandtrichomesinsomespeciesbelongtomalvaceaefamily