Anatomical characteristics of xeranthemum l. (compositae) species: taxonomical insights and evolution of life form
Само за регистроване кориснике
2019
Аутори
Gavrilović, MilanRančić, Dragana
Skundrić, Tamara
Dajić-Stevanović, Zora
Marin, Petar D.
Garcia-Jacas, Nuria
Susanna, Alfonso
Janacković, Pedja
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Comparative anatomical and micromorphological analyses of root, stem, peduncle, leaf and inflorescence have been conducted on two Xeranthemum species, X. annuum and X. cylindraceum, by light microscopy (LM) and scanning electron microscopy (SEM). The main goal of the study was to examine the most important anatomical features and to find new valid taxonomic delimiting characters for the first time in both species. Regarding vegetative organs anatomy, the data obtained in this study indicated that both species possessed secondary tissues in the root, although these plants are annual. Also, stem anatomy was a typical of the Compositae family members, and anomocytic stomata type and dorsiventral leaf structure were present. On the involucral bracts surface crystals were noticeable, while highly developed multilayer sclerenchyma was present in the mesophyll. Palea anatomy was very similar to bract anatomy. Some floral features were as follows: lateral anther dehiscence, corolla composed of... uniseriate epidermis and with a homogeneous parenchyma in the mesophyll, inferior ovary and anatropous ovule with basal placentation. The specific quantitative characters that were different between the examined species were emphasized. Some selected, well defined qualitative anatomical characters (e.g. shape of the young stem and peduncle cross-sections, type of glandular trichomes and cortical vascular bundles occurrence), on the basis of which the studied species were distinguishable, strengthen the taxonomy of the Xeranthemum genus and provide features for better identification of the taxa. This is the first study of the anatomy of Xeranthemum species and some of the characters found (secondary growth and dorsiventral leaves) points towards an adaptation of mesophilous ancestors to xeric habitats in Xeranthemum.
Кључне речи:
Xeranthemum / Cardueae / Anatomy / Micromorphology / TaxonomyИзвор:
Pakistan Journal of Botany, 2019, 51, 3, 1007-1019Издавач:
- Pakistan Botanical Soc, Karachi
Финансирање / пројекти:
- Микроморфолошка, фитохемијска и молекуларна истраживања биљака - систематски, еколошки и применљиви аспекти (RS-173029)
DOI: 10.30848/PJB2019-3(26)
ISSN: 0556-3321
WoS: 000462609100028
Scopus: 2-s2.0-85061757186
Институција/група
Poljoprivredni fakultetTY - JOUR AU - Gavrilović, Milan AU - Rančić, Dragana AU - Skundrić, Tamara AU - Dajić-Stevanović, Zora AU - Marin, Petar D. AU - Garcia-Jacas, Nuria AU - Susanna, Alfonso AU - Janacković, Pedja PY - 2019 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/5120 AB - Comparative anatomical and micromorphological analyses of root, stem, peduncle, leaf and inflorescence have been conducted on two Xeranthemum species, X. annuum and X. cylindraceum, by light microscopy (LM) and scanning electron microscopy (SEM). The main goal of the study was to examine the most important anatomical features and to find new valid taxonomic delimiting characters for the first time in both species. Regarding vegetative organs anatomy, the data obtained in this study indicated that both species possessed secondary tissues in the root, although these plants are annual. Also, stem anatomy was a typical of the Compositae family members, and anomocytic stomata type and dorsiventral leaf structure were present. On the involucral bracts surface crystals were noticeable, while highly developed multilayer sclerenchyma was present in the mesophyll. Palea anatomy was very similar to bract anatomy. Some floral features were as follows: lateral anther dehiscence, corolla composed of uniseriate epidermis and with a homogeneous parenchyma in the mesophyll, inferior ovary and anatropous ovule with basal placentation. The specific quantitative characters that were different between the examined species were emphasized. Some selected, well defined qualitative anatomical characters (e.g. shape of the young stem and peduncle cross-sections, type of glandular trichomes and cortical vascular bundles occurrence), on the basis of which the studied species were distinguishable, strengthen the taxonomy of the Xeranthemum genus and provide features for better identification of the taxa. This is the first study of the anatomy of Xeranthemum species and some of the characters found (secondary growth and dorsiventral leaves) points towards an adaptation of mesophilous ancestors to xeric habitats in Xeranthemum. PB - Pakistan Botanical Soc, Karachi T2 - Pakistan Journal of Botany T1 - Anatomical characteristics of xeranthemum l. (compositae) species: taxonomical insights and evolution of life form EP - 1019 IS - 3 SP - 1007 VL - 51 DO - 10.30848/PJB2019-3(26) ER -
@article{ author = "Gavrilović, Milan and Rančić, Dragana and Skundrić, Tamara and Dajić-Stevanović, Zora and Marin, Petar D. and Garcia-Jacas, Nuria and Susanna, Alfonso and Janacković, Pedja", year = "2019", abstract = "Comparative anatomical and micromorphological analyses of root, stem, peduncle, leaf and inflorescence have been conducted on two Xeranthemum species, X. annuum and X. cylindraceum, by light microscopy (LM) and scanning electron microscopy (SEM). The main goal of the study was to examine the most important anatomical features and to find new valid taxonomic delimiting characters for the first time in both species. Regarding vegetative organs anatomy, the data obtained in this study indicated that both species possessed secondary tissues in the root, although these plants are annual. Also, stem anatomy was a typical of the Compositae family members, and anomocytic stomata type and dorsiventral leaf structure were present. On the involucral bracts surface crystals were noticeable, while highly developed multilayer sclerenchyma was present in the mesophyll. Palea anatomy was very similar to bract anatomy. Some floral features were as follows: lateral anther dehiscence, corolla composed of uniseriate epidermis and with a homogeneous parenchyma in the mesophyll, inferior ovary and anatropous ovule with basal placentation. The specific quantitative characters that were different between the examined species were emphasized. Some selected, well defined qualitative anatomical characters (e.g. shape of the young stem and peduncle cross-sections, type of glandular trichomes and cortical vascular bundles occurrence), on the basis of which the studied species were distinguishable, strengthen the taxonomy of the Xeranthemum genus and provide features for better identification of the taxa. This is the first study of the anatomy of Xeranthemum species and some of the characters found (secondary growth and dorsiventral leaves) points towards an adaptation of mesophilous ancestors to xeric habitats in Xeranthemum.", publisher = "Pakistan Botanical Soc, Karachi", journal = "Pakistan Journal of Botany", title = "Anatomical characteristics of xeranthemum l. (compositae) species: taxonomical insights and evolution of life form", pages = "1019-1007", number = "3", volume = "51", doi = "10.30848/PJB2019-3(26)" }
Gavrilović, M., Rančić, D., Skundrić, T., Dajić-Stevanović, Z., Marin, P. D., Garcia-Jacas, N., Susanna, A.,& Janacković, P.. (2019). Anatomical characteristics of xeranthemum l. (compositae) species: taxonomical insights and evolution of life form. in Pakistan Journal of Botany Pakistan Botanical Soc, Karachi., 51(3), 1007-1019. https://doi.org/10.30848/PJB2019-3(26)
Gavrilović M, Rančić D, Skundrić T, Dajić-Stevanović Z, Marin PD, Garcia-Jacas N, Susanna A, Janacković P. Anatomical characteristics of xeranthemum l. (compositae) species: taxonomical insights and evolution of life form. in Pakistan Journal of Botany. 2019;51(3):1007-1019. doi:10.30848/PJB2019-3(26) .
Gavrilović, Milan, Rančić, Dragana, Skundrić, Tamara, Dajić-Stevanović, Zora, Marin, Petar D., Garcia-Jacas, Nuria, Susanna, Alfonso, Janacković, Pedja, "Anatomical characteristics of xeranthemum l. (compositae) species: taxonomical insights and evolution of life form" in Pakistan Journal of Botany, 51, no. 3 (2019):1007-1019, https://doi.org/10.30848/PJB2019-3(26) . .