Anatomical Tool as Additional Approach for Identifying Pharmaceutically Important <i>Ephedra</i> Species (Ephedraceae) at Gender Identity Level in Egypt

The genus <i>Ephedra</i> Tourn. ex L. (Ephedraceae) is an important source with pharmacological and environmental potential. Conversely, <i>Ephedra</i> spp. still exhibit taxonomic complexity, especially for the specimens lacking reproductive cones. This complexity is attribu...

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Main Authors: Maha H. Khalaf, Wafaa M. Amer, Najla A. Al Shaye, Mahmoud O. Hassan, Nasr H. Gomaa
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Biology
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Online Access:https://www.mdpi.com/2079-7737/13/11/947
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author Maha H. Khalaf
Wafaa M. Amer
Najla A. Al Shaye
Mahmoud O. Hassan
Nasr H. Gomaa
author_facet Maha H. Khalaf
Wafaa M. Amer
Najla A. Al Shaye
Mahmoud O. Hassan
Nasr H. Gomaa
author_sort Maha H. Khalaf
collection DOAJ
description The genus <i>Ephedra</i> Tourn. ex L. (Ephedraceae) is an important source with pharmacological and environmental potential. Conversely, <i>Ephedra</i> spp. still exhibit taxonomic complexity, especially for the specimens lacking reproductive cones. This complexity is attributed to its xeromorphic features, notably the reduced leaves and analogous assimilating branches, which make the species identification a real challenge. The current study provides a pioneering approach to distinguish fragments of <i>Ephedra</i> species at the gender level. This study was based on the stem anatomy and stem epidermal features using a light microscope for five species (<i>E. alata</i> Decne., <i>E. aphylla</i> Forssk., <i>E. ciliata</i> Fisch. & C.A.Mey., <i>E. foeminea</i> Forssk. and <i>E. Ephedra pachyclada</i> Boiss.) represented by ten genders collected from S. Sinai, Egypt. Anomocytic and brachyparacytic stomata, tanniniferous idioblasts, annual rings, a terete and furrowed outline, the number and width of tracheids, patches of cortical fibers, unicellular trichomes, druses, solitary crystals, and the activity of interfascicular cambium were among the distinguishing features that were found. Different statistical analyses were applied to explore the diversity at interspecific and intra-generic levels. This study revealed that the stem anatomy was not only an efficient tool for identifying the investigated five <i>Ephedra</i> species at the species level but also presented a differential key to distinguish between genders and species. In addition, our results indicated that the epidermal features played a critical role in differentiating the studied <i>Ephedra</i> species at the gender level. This study confirms the efficacy of stem anatomy as an identification approach for the <i>Ephedra</i> species at the gender level and recommends this approach to identify the fragmented <i>Ephedra</i> for taxonomical, pharmaceutical, and medical applications.
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spelling doaj-art-3c8d845438134b0e907d720c7d85f55a2024-11-26T17:52:35ZengMDPI AGBiology2079-77372024-11-01131194710.3390/biology13110947Anatomical Tool as Additional Approach for Identifying Pharmaceutically Important <i>Ephedra</i> Species (Ephedraceae) at Gender Identity Level in EgyptMaha H. Khalaf0Wafaa M. Amer1Najla A. Al Shaye2Mahmoud O. Hassan3Nasr H. Gomaa4Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62521, EgyptDepartment of Botany and Microbiology, Faculty of Science, Cairo University, Giza 12613, EgyptDepartment of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi ArabiaDepartment of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62521, EgyptDepartment of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62521, EgyptThe genus <i>Ephedra</i> Tourn. ex L. (Ephedraceae) is an important source with pharmacological and environmental potential. Conversely, <i>Ephedra</i> spp. still exhibit taxonomic complexity, especially for the specimens lacking reproductive cones. This complexity is attributed to its xeromorphic features, notably the reduced leaves and analogous assimilating branches, which make the species identification a real challenge. The current study provides a pioneering approach to distinguish fragments of <i>Ephedra</i> species at the gender level. This study was based on the stem anatomy and stem epidermal features using a light microscope for five species (<i>E. alata</i> Decne., <i>E. aphylla</i> Forssk., <i>E. ciliata</i> Fisch. & C.A.Mey., <i>E. foeminea</i> Forssk. and <i>E. Ephedra pachyclada</i> Boiss.) represented by ten genders collected from S. Sinai, Egypt. Anomocytic and brachyparacytic stomata, tanniniferous idioblasts, annual rings, a terete and furrowed outline, the number and width of tracheids, patches of cortical fibers, unicellular trichomes, druses, solitary crystals, and the activity of interfascicular cambium were among the distinguishing features that were found. Different statistical analyses were applied to explore the diversity at interspecific and intra-generic levels. This study revealed that the stem anatomy was not only an efficient tool for identifying the investigated five <i>Ephedra</i> species at the species level but also presented a differential key to distinguish between genders and species. In addition, our results indicated that the epidermal features played a critical role in differentiating the studied <i>Ephedra</i> species at the gender level. This study confirms the efficacy of stem anatomy as an identification approach for the <i>Ephedra</i> species at the gender level and recommends this approach to identify the fragmented <i>Ephedra</i> for taxonomical, pharmaceutical, and medical applications.https://www.mdpi.com/2079-7737/13/11/947<i>Ephedra</i> fragmentslight microscopestem anatomyepidermal systemgender identificationEphedraceae
spellingShingle Maha H. Khalaf
Wafaa M. Amer
Najla A. Al Shaye
Mahmoud O. Hassan
Nasr H. Gomaa
Anatomical Tool as Additional Approach for Identifying Pharmaceutically Important <i>Ephedra</i> Species (Ephedraceae) at Gender Identity Level in Egypt
Biology
<i>Ephedra</i> fragments
light microscope
stem anatomy
epidermal system
gender identification
Ephedraceae
title Anatomical Tool as Additional Approach for Identifying Pharmaceutically Important <i>Ephedra</i> Species (Ephedraceae) at Gender Identity Level in Egypt
title_full Anatomical Tool as Additional Approach for Identifying Pharmaceutically Important <i>Ephedra</i> Species (Ephedraceae) at Gender Identity Level in Egypt
title_fullStr Anatomical Tool as Additional Approach for Identifying Pharmaceutically Important <i>Ephedra</i> Species (Ephedraceae) at Gender Identity Level in Egypt
title_full_unstemmed Anatomical Tool as Additional Approach for Identifying Pharmaceutically Important <i>Ephedra</i> Species (Ephedraceae) at Gender Identity Level in Egypt
title_short Anatomical Tool as Additional Approach for Identifying Pharmaceutically Important <i>Ephedra</i> Species (Ephedraceae) at Gender Identity Level in Egypt
title_sort anatomical tool as additional approach for identifying pharmaceutically important i ephedra i species ephedraceae at gender identity level in egypt
topic <i>Ephedra</i> fragments
light microscope
stem anatomy
epidermal system
gender identification
Ephedraceae
url https://www.mdpi.com/2079-7737/13/11/947
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