Comparative Foliar Epidermal Studies in Coix lacryma-jobi L. andCoix aquatica Roxb. (Poaceae)

Desai, Rinku J.; Raole, V. M.; Arya, Arun

doi:10.15835/nsb113449

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…Leaf epidermis is considered the second most important character after cytology for solving many taxonomic problems (Srivastava 1978) and recent studies prove the importance of the leaf epidermis in plant taxonomy (Stace 1984;Desai, Raole, and Arya 2009;Raole and Desai 2009;Ogie-Odia et al 2010;Ahmad et al 2011;Shaheen et al 2011;Folorunso and Oyetunji 2007). One of the important features of grass epidermis is the deposition of hydrated amorphous silica within or between the cells of the epidermis and subepidermal layers.…”

Section: Introductionmentioning

confidence: 99%

Foliar phytoliths as an aid to the identification of Paniceae (Panicoideae: Poaceae) grasses in South India

Jattisha

Sabu

2015

Webbia

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Foliar phytolith studies were carried out in 13 genera including 29 commonly occurring species of the tribe Paniceae of the subfamily Panicoideae (Family: Poaceae) to determine the variations that exist in the phytolith characters, thereby assessing their value in identifying the species. Phytoliths were studied intact in epidermal peeling and also after isolation in acid medium. The members of the tribe were observed to produce a wide variety of lobate phytoliths including bilobate simple type, bilobate nodular, trilobate and polylobate. Ridged bilobate phytoliths produced by certain genera like Digitaria, Echinochloa and Sacciolepis are characteristic of the subfamily. Saddle shapes were not observed in any of the taxa under study. Shapes of phytoliths in the costal regions, their size, intercostal short cell silicification, nature of outer margins, presence of different appendages like papilla, microhairs, macrohairs and prickle hairs are important characters observed in epidermal peeling. Frequency percentages of different phytolith types occurring in isolated samples were also found to be reliable for taxonomic use. A key is prepared for the identification of all the 29 species studied. This could facilitate the identification of the taxa in the vegetative stage itself even when the spikelets are not available.

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Section: Introductionmentioning

confidence: 99%

Foliar phytoliths as an aid to the identification of Paniceae (Panicoideae: Poaceae) grasses in South India

Jattisha

Sabu

2015

Webbia

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“…After cytology, leaf epidermis plays the most important role in the taxonomy of plant species [78][79][80][81][82][83][84]. The grass epidermis has three categories of elements namely bulliform elements, differentiated elements, fundamental elements [85].…”

Section: In-situ Location (Epidermal Peeling)mentioning

confidence: 99%

Phytolith profile of Acrachne racemosa (B. Heyne ex Roem. & Schult.) Ohwi (Cynodonteae, Chloridoideae, Poaceae)

et al. 2022

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Acrachne racemosa (B. Heyne. ex Roem. & Schult.) Ohwi of the subfamily Chloridoideae of the family Poaceae is an economically important grass species. Grasses are characterized by deposits of silica in the cells or tissues in the form of phytoliths which protect them from various types of biotic and abiotic stresses. Owing to variable shape and specificity of morphotypes, phytolith helps in taxonomical studies, reconstruction of paleoenvironments and prediction of climate changes. The present study focussed on developing a phytolith profile of the selected species. For isolation of phytolith, Dry Ashing Method was employed, and by epidermal peeling, in-situ location of phytoliths was deciphered. In the present study, silica percentage was studied from different parts of the plant and the maximum amount was found in the leaf. Frequency and morphometric data of phytolith morphotypes from different parts of the plants were also collected and analyzed. The strongest correlation was found between phytolith types of root and culm by Pearson’s correlation coefficient supported by cluster analysis. The saddle type of phytoliths had the highest frequency in the leaf; other types of phytoliths in different parts of the plant were bilobate, blocky types, elongate types, trapezoids, triangular, cross, sinuate elongate, tabular types, globular types. Functional groups and amorphous polymorphic phases of silica were also analyzed by FTIR and XRD. It was concluded that phytolith types are controlled by parts of plant body and by anatomical and environmental factors.

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“…Till today, 86 genera of the tribe Andropogoneae has been reported for their leaf anatomy and micromorphological features of which only 5 taxa of subtribe Ischaemineae were mentioned (Metcalfe, 1960;Renvoize, 1982a;Hilu, 1984;Davila andClarke, 1990, McWhorter et al, 1993;Abid et al, 2007;Folorunso and Oeytunji, 2007;Desai et al, 2009;Ullah et al, 2011;Triaperm et al, 2011). During present investigations, intercostal zone and costal zone are uniform in nature in terms of rectangular sinuous papillate long cells, triangular-low domed stomata and cross-dumbbell-nodular shaped silica cells.…”

Section: Leaf Epidermal Preparationmentioning

confidence: 99%

Foliar Micromorphology of Subtribe Ischaemineae, Tribe Andropogoneae, Family Poaceae

Desai

Raole

2013

Not Sci Biol

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Leaf epidermal features are very important in grass systematics for characterization of broad groups, within subfamilies and tribes. Numerous species belonging to sub-tribe Ischaemineae, tribe Andropogoneae, family Poaceae are endemic to the Indian subcontinent, but their micromorphological reports were very scares. Therefore, foliar micromorphological characters of subtribe Ischaemineae have been studied in detail for 16 taxa of subtribe Ischaemineae from Gujarat, India. All the epidermal peels were prepared after following routine scraping method, representative areas were photographed and presented here. Structural diversity as well as metric values for both the epidermises has been recorded. In general, intercostals zones and costal zones are uniform in nature in terms of sinuous papillate long cells, cross-dumbbell-nodular shaped silica cells and triangular-low domed shaped subsidiary cells on stomata. From all the studied micromorphological characters, papillae and microhairs are found to be most useful character to segregate species and genera in subtribe Ischaemineae. Additionally, intercostal silica bodies, hooks, prickles and bulliform cells are also found to be helpful for the same. An artificial key based on observed variable micromorphological features has been also prepared.

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Comparative Foliar Epidermal Studies in Coix lacryma-jobi L. andCoix aquatica Roxb. (Poaceae)

Cited by 3 publications

References 9 publications

Foliar phytoliths as an aid to the identification of Paniceae (Panicoideae: Poaceae) grasses in South India

Foliar phytoliths as an aid to the identification of Paniceae (Panicoideae: Poaceae) grasses in South India

Phytolith profile of Acrachne racemosa (B. Heyne ex Roem. & Schult.) Ohwi (Cynodonteae, Chloridoideae, Poaceae)

Foliar Micromorphology of Subtribe Ischaemineae, Tribe Andropogoneae, Family Poaceae

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