Significance of Wood Anatomical Features to the Taxonomy of Five Cola Species

Akinloye, Akinwumi Johnson; Illoh, H. C.; Olagoke, O A

doi:10.5539/sar.v1n2p21

Cited by 6 publications

(3 citation statements)

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“…It can be implied from the above account that, while empirical data on wood anatomy provided by authors such as Perrone et al 49 , Akinloye et al 51 and Marques and Callado 52 have been successfully used to diagnose many medicinal and non-medicinal plants, the story has not been the same for the three woody species reported in this study. This is a further justification for the present effort, with the results that qualitative and quantitative characteristics of wood anatomy are reliable in evaluating pharmacognostic parameters of the species.…”

Section: The Diagnostic Value Of Wood Anatomy In the Medicinal Herbs Studiedmentioning

confidence: 67%

Evaluation of some pharmacognostic parameters of the herbs for a traditional hematinic (Haematol -B) powdered formulation in Ogbomoso, Nigeria

Ogunkunle¹,

Ideh

Olaniran³

et al. 2021

JPBS

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The traditional hematinic oral powdered herbal drug (Haematol-B) from Ogbomoso, Nigeria had been characterized in terms of its botanical constituents, ascorbic acid and mineral elements composition, but there is inadequate information on the pharmacognostic properties of the ten herbal materials for its formulation. Therefore the objective of this study was to evaluatethe bark and wood anatomy (as appropriate) of seven of these herbs with a view to highlighting the diagnostic markers for their authentication. Following the conventional anatomical procedures of transverse sectioning (TS) and tissue maceration (TIM), a total of 21 characters were drawn from the barks (root or stem as appropriate) of the seven woody species studied, while 41 characteristics of the wood in the roots of three of the species were compiled using TS, transverse longitudinal sectioning (TLS), radial longitudinal sectioning (RLS) and TIM techniques. Staining, mounting and microscopic examinations followed, and the observed features were taxonomically described in accordance with the provisions of International Association of Wood Anatomists. Their diagnostic values among the medicinal herbs studied were also explored. The bark anatomical features that can be used to diagnose the species studied were those of the secondary cortex, phloem rays, axial parenchyma, sclereids and resin ducts. The wood anatomical markers included features of the vessels in the TS and variable ray characteristics in the TLS. The two artificial keys constructed from discontinuities in qualitative and quantitative anatomical features of the barks and the wood are useful tools for avoiding misidentification of the herbal materials studied.

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Section: The Diagnostic Value Of Wood Anatomy In the Medicinal Herbs Studiedmentioning

confidence: 67%

Evaluation of some pharmacognostic parameters of the herbs for a traditional hematinic (Haematol -B) powdered formulation in Ogbomoso, Nigeria

Ogunkunle¹,

Ideh

Olaniran³

et al. 2021

JPBS

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“…While empirical data on wood anatomy have been successfully used to diagnose many medicinal and non-medicinal plants (e.g. [47][48][49][50] ), available literature seems to be poor in pharmacognostic studies of these three medicinal plants from Ogbomoso Nigeria from the point of view of their wood anatomy. By and large, the results of this study are confirmatory of the view that qualitative and quantitative characteristics of wood anatomy are reliable in pharmacognostic evaluation of medicinal plants.…”

Section: The Diagnostic Value Of Wood Anatomy In the Medicinal Herbs Studiedmentioning

confidence: 99%

Aspects of pharmacognostic evaluation of the herbs for a traditional antimalarial (maloff-hb) powdered formulation in ogbomoso, Nigeria

Ogunkunle¹,

Ideh

Olaniran³

et al. 2021

JPBS

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Maloff-HB is a documented traditional oral powdered herbal drug in Ogbomoso, Nigeria whose botanical constituents, ascorbic acid and mineral elements composition have been quantified but there is inadequate information on the pharmacognostic properties of the nine herbal materials for its formulation. This study therefore sought to elucidate the bark and wood anatomy of eight of the nine herbs used in the formulation, and identify the diagnostic markers for their authentication. The conventional anatomical techniques of transverse sectioning (TS) and tissue maceration (TIM) were used to draw out 21 characteristics from the root barks of the eight woody species studied. In addition, 41 features of the wood in the roots of three of the species were drawn using TS, transverse longitudinal sectioning (TLS), radial longitudinal sectioning (RLS) and TIM. Following staining, mounting and microscopic examinations, the observed qualitative and quantitative features were taxonomically described in accordance with the provisions of International Association of Wood Anatomists, and their diagnostic values among the medicinal herbs were explored. Bark anatomical markers that are clearly diagnostic of the species studied included features of the secondary cortex, phloem rays, axial parenchyma, sclereids and resin ducts. In the wood, these included features of the vessels in the TS and variable ray characteristics in the TLS. The two artificial keys obtained from discontinuities in qualitative and quantitative features observed in the barks and the woods are useful tools for reliable identification of the herbal materials studied.

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“…For maceration of tissues, slices of each wood sample were put in a beaker containing Schulz's fluid (obtained by mixing equal volume of 10% chromic acid and 10% nitric acid as described by Ogbonnaya et al (1997), Akinloye et al (2012), and Oladipo and Oyaniran (2013). The macerated specimens were rinsed in water about five times and later preserved in 50% ethanol.…”

Section: Wood Microscopic Studiesmentioning

confidence: 99%

Wood micro-morphological characteristics of the Tribe Dalbergieae in Nigeria

Chukwuma

Ayodele

2021

webbia

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The present study examined the wood micro-characters of 18 species of the tribe Dalbergieae across 4 genera in Nigeria, following previously described methods by other authors. The species are distributed across all geo-ecological zones of the country but more abundant in the southern area which is characterized by higher precipitation. Findings clearly showed that members of the tribe Dalbergieae have more generic/tribal characteristics than delimiting characters. The species have certain unifying characters such as diffuse pore porosity, simple perforation plates, oblique to orthogonal vessel transverse wall inclination, prismatic/styloid crystals, and non-septate fibres. Vessels were longest and widest in D. saxatilis, about 197.89x104.23µm. On the contrary, the shortest was observed in D. hostilis - 67.62 µm while the narrowest was in D. oligophylla (28.4 µm). While fibre length was highest in P. mildbraedii (331.22 µm±7.5) and smallest in D. saxatilis (0.69 µm±0.0), the ray cells were longest in D. saxatilis (185µm) and shortest in P. santalinoides (41.82µm) respectively. We confirm here that anatomical studies should not be neglected in plant systematics, even though molecular approaches have been the focus in recent times.

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Significance of Wood Anatomical Features to the Taxonomy of Five Cola Species

Cited by 6 publications

References 1 publication

Evaluation of some pharmacognostic parameters of the herbs for a traditional hematinic (Haematol -B) powdered formulation in Ogbomoso, Nigeria

Evaluation of some pharmacognostic parameters of the herbs for a traditional hematinic (Haematol -B) powdered formulation in Ogbomoso, Nigeria

Aspects of pharmacognostic evaluation of the herbs for a traditional antimalarial (maloff-hb) powdered formulation in ogbomoso, Nigeria

Wood micro-morphological characteristics of the Tribe Dalbergieae in Nigeria

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