Pollen grain morphology of three species and a variety of Ocimum linn.(Lamiaceae) in Southwestern Nigeria

Arogundade, O.O; Adedeji, O.

doi:10.4314/just.v29i3.50028

Cited by 12 publications

(9 citation statements)

References 7 publications

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“…Harley et al (1992) found in their studies that most of Ocimum species pollens are with bireticulate-perforate tectum sculpture and suggested a re-evaluation in their classification. As well as Arogundade and Adedeji (2009) in their study of Ocimum L. species concentrated on pollen colpi reporting different types of pollens acolpate to octacolpate pollens which reveal that there are significant differences among the species. Moreover, Dinç et al (2009) reported in their study on Lallemantia species growing in Turkey, the exine sculpture of pollen had taxonomic value.…”

Section: Introductionmentioning

confidence: 96%

Pollen morphology of certain species of the family Lamiaceae in Saudi Arabia

Doaigey

El-Zaidy

Alfarhan

et al. 2018

Saudi Journal of Biological Sciences

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The intention of the present wok is to provide an account on the pollen morphological features of Lamiaceae in Saudi Arabia as a basis for future studies of Lamiaceae pollens in the region. Pollen morphology of 20 species belong to 16 genera of the Lamiaceae has been investigated using Light Microscope (LM) and Scanning Electron Microscope (SEM). The study revealed that the pollen grains were characterized by 3-zonocolpate or 6-zonocolpate. Size of the pollen is variable between the genera but not among the species of the same genus. The surface pattern of the exine varies from fine reticulate, rough reticulate, mega-reticulate, reticulate-perforate, bireticulate-perforate or granulate, leading to 6 types of pollen grains. These variations revealed by this study implies that pollen Morphology may be of significant value sharing in solving problems in the classification of Lamiaceae members. A Key to the species, based on the morphological features of pollen grains, is also provided.

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Section: Introductionmentioning

confidence: 96%

Pollen morphology of certain species of the family Lamiaceae in Saudi Arabia

Doaigey

El-Zaidy

Alfarhan

et al. 2018

Saudi Journal of Biological Sciences

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“…Pollen shapes have been found useful in the delimitation of groups of plants (Moore and Web, 1978;Arogundade and Adedeji, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Palynological evidences have proven useful at all taxonomic levels because the structure of the pollen wall which is usually being employed in the study is not affected by environmental factors Nnamani and Onu (2014). Palynological characters have therefore been variously employed in the taxonomy of species of plants, forensic sciences, crime site detection, archaeology, paleoecology, delimitation of closely related or sympatric species, valuable in phylogenetic inferences (Nyananyo, 1992;Akinwusi and Illoh, 1996;Edeoga et al, 1998;Adedeji, 2005;Arogundade and Adedeji, 2009;Simpson, 2010, Arogundade andLawal, 2018). According to Acharya et al (2011), there are still a lot of taxonomic work to be done at the genera and specific levels of the subfamily Caesalpinioideae.…”

Section: Introductionmentioning

confidence: 99%

Taxonomic importance of the palynological features of some members of family Leguminosae-Caesalpinioideae

Arogundade¹,

Fatunmise²,

Bernard³

2019

Ife Journal of Science

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Acetolysed pollen grains of eight species in the Leguminosae-Caesalpinioideae were studied with the aim of identifying palynological characters of taxonomic importance among the taxa and determining their probable evolutionary relationships. The Acetolysis procedure and pollen type description were carried out following standard methods. The eight species include two species from genus Cassia Linn.-Cassia sieberiana DC and Cassia fistula Linn and six species from genus Senna Mill.-Senna occidentalis (Linn.) Link, Senna siamea (Lam.) Irwin and Barneby, Senna podocarpa (Guill. & Perr.) Lock, Senna hirsuta (Linn.) Irwin and Barneby, Senna obtusifolia (L.) Irwin and Barneby and Senna sophera (L.) Roxb. The pollens of all the species were shed as monads and they all had perforate sculpturing pattern on their exine. The pollen size of all the species falls into the group media (25-50 µm). All the species had ovate pollen shapes except for some additional circular, elliptic and club-shaped types observed in some of the species. All the species had monocolporate and tricolpate pollen grain types. Tetracolpate, pentacolpate and hexacolpate pollen grains, which are advanced pollen types were observed only in the species of Senna while the primitive pollen types, acolpate and monocolpate, were observed more in the members of the genus Cassia, thus, the evolutionary advancement of Senna over Cassia was discussed. Other pollen types observed in some of the species were bicolpate, trilete, diporate, tricolporate, and pentacolporate. Their importance in the identification and classification of the Cassia and Senna species was also discussed.

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“…), Hierocymum Benth and Gymnocymum Benth. Pollen grains of three species and a variety of Ocimum occurring in South-western Nigeria by light microscopy (LM) have been reported by Arogundade and Adedeji (2009). Morphological characteristics of family Lamiaceae of seeds of Al-Taif in Saudi Arabia are focused by Hassan and Altobatti (2015) and formerly by El-Gazzar and Watson (1970).…”

Section: Introductionmentioning

confidence: 99%

Pollen grains and seed-morphology as related to Biochemical Patterns in five species of genus Ocimum L (Lamiaceae Juss.) of Saudi Arabia

Kasem¹

2017

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This study aims to investigate the pollen and seed morphology by light microscopy (LM) and scanning electron microscope (SEM) as related to biochemical data of seed protein and esterase isoenzymes by sodium dodecyl sulfate-polyacrylamide gel electrophoresis technique (SDS-PAGE) in the five Saudi Arabian Ocimum L. species. The detailed description for pollen and seed morphology in addition electrophoretic patterns were represented by means of numerical analyses based on total 39 studied characters. The pollen grains were zonocolpate, hexacolpate, and prolate to subprolate, with bireticulate tetctum in all the studied species. The types of exine ornamentation were recognized, perforate, reticulate, and granulate. In seed morphology, the anticlinal cell wall boundaries and periclinal cell walls are described by the aid of SEM which exhibited four main distinct types of nutlets sculpture, undulate, quirky, circular, and straight. On the other hand, the molecular patterns of protein profiles and esterase (EC.3.1.1.1) showed that esterase could be considered as positive markers, minimum and maximum gene/gene expression of protein profiles and esterase isoenzymes demonstrated. An constructed artificial keys and the relationships between the studied species were elucidated.

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Pollen grain morphology of three species and a variety of Ocimum linn.(Lamiaceae) in Southwestern Nigeria

Cited by 12 publications

References 7 publications

Pollen morphology of certain species of the family Lamiaceae in Saudi Arabia

Pollen morphology of certain species of the family Lamiaceae in Saudi Arabia

Taxonomic importance of the palynological features of some members of family Leguminosae-Caesalpinioideae

Pollen grains and seed-morphology as related to Biochemical Patterns in five species of genus Ocimum L (Lamiaceae Juss.) of Saudi Arabia

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