Figure 3 - uploaded by Md. Ariful Islam
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(a) Cross-section of main axis shows the axial cell (c) surrounded by five pericentral cells (p) and two adjacent cells (ad). Adjacent cells are connected to the axial cell through cell wall thickenings. (b) Cross section shows the cell wall thickening (arrow) in the pericentral cells and their sub-cortical cells. (c) Cross section shows the fine spine like structure (small arrow) around the pericentral cell region and connected with secondary pit connections (large arrow).
Source publication
Epiphytic algae in mangrove forests contribute to high productivity in these unique mangrove ecosystems. A general survey of mangrove-associated macroalgae was conducted during February-March (dry season) and November-December (wet season) in the Sundarbans Mangrove Forest, Bangladesh. Different macroalgae were collected from mangrove pneumatophore...
Contexts in source publication
Context 1
... ramuli issued from branches are at irregular intervals, clavate, with obtuse or depressed apices, 350-1200 µm long and 200-450 µm wide. Epidermal cells in the upper (younger) part of the main axis are oval or ellipsoid with uneven outlines, and 25-40 µm; secondary pit connection present between two proximate cells ( Figure 3c). Axial cells, are 25-30 µm in diameter, surrounded by five pericentral cells that are 35-40 µm in diameter and connected by pit connections. ...
Context 2
... cells, are 25-30 µm in diameter, surrounded by five pericentral cells that are 35-40 µm in diameter and connected by pit connections. Pericentral cells are cylindrical, elongated radially at the beginning of formation and gradually becoming inflated, assuming a longitudinally cylindrical form as long as broad, with 2-3 adjacent cells present between the pericentral cells ( Figure 3a). Cell wall thickenings were found in the pericentral and sub-cortical cells (Figure 3b). ...
Context 3
... cells are cylindrical, elongated radially at the beginning of formation and gradually becoming inflated, assuming a longitudinally cylindrical form as long as broad, with 2-3 adjacent cells present between the pericentral cells ( Figure 3a). Cell wall thickenings were found in the pericentral and sub-cortical cells (Figure 3b). Radial spine-like structures were found in pericentral cells (Figure 3c), and were considerably rigid and elastic at the fine ends, cartilaginous, glossy, and somewhat slender and attenuated towards their fine and acute ends. ...
Context 4
... wall thickenings were found in the pericentral and sub-cortical cells (Figure 3b). Radial spine-like structures were found in pericentral cells (Figure 3c), and were considerably rigid and elastic at the fine ends, cartilaginous, glossy, and somewhat slender and attenuated towards their fine and acute ends. The radial spine-form structure seems to be associated with a cell wall and is connected via secondary pit connection [3]. ...
Context 5
... ramuli issued from branches are at irregular intervals, clavate, with obtuse or depressed apices, 350-1200 µm long and 200-450 µm wide. Epidermal cells in the upper (younger) part of the main axis are oval or ellipsoid with uneven outlines, and 25-40 µm; secondary pit connection present between two proximate cells ( Figure 3c). Axial cells, are 25-30 µm in diameter, surrounded by five pericentral cells that are 35-40 µm in diameter and connected by pit connections. ...
Context 6
... cells, are 25-30 µm in diameter, surrounded by five pericentral cells that are 35-40 µm in diameter and connected by pit connections. Pericentral cells are cylindrical, elongated radially at the beginning of formation and gradually becoming inflated, assuming a longitudinally cylindrical form as long as broad, with 2-3 adjacent cells present between the pericentral cells ( Figure 3a). Cell wall thickenings were found in the pericentral and sub-cortical cells (Figure 3b). ...
Context 7
... cells are cylindrical, elongated radially at the beginning of formation and gradually becoming inflated, assuming a longitudinally cylindrical form as long as broad, with 2-3 adjacent cells present between the pericentral cells ( Figure 3a). Cell wall thickenings were found in the pericentral and sub-cortical cells (Figure 3b). Radial spine-like structures were found in pericentral cells (Figure 3c), and were considerably rigid and elastic at the fine ends, cartilaginous, glossy, and somewhat slender and attenuated towards their fine and acute ends. ...
Context 8
... wall thickenings were found in the pericentral and sub-cortical cells (Figure 3b). Radial spine-like structures were found in pericentral cells (Figure 3c), and were considerably rigid and elastic at the fine ends, cartilaginous, glossy, and somewhat slender and attenuated towards their fine and acute ends. The radial spine-form structure seems to be associated with a cell wall and is connected via secondary pit connection [3]. ...
Citations
... In Bangladesh seaweeds are naturally abundant in the littoral and sub-littoral zones of coastal and Sundarbans mangrove areas. Around 200 species belonging to 77 genera of seaweeds have so far been recorded from the Bangladesh coast by various studies and new species are included in the list (Aziz 2015, Islam et al. 2019, BFRI 2019, Mamun et al. 2020. These include 29-47 species of green seaweeds, 35-59 species of brown seaweeds, and 69-94 species of red seaweeds. ...
The experimental culture of 3 seaweed species, i.e. Hypnea musciformis, Enteromorpha intestinalis and Padina tetrastromatica in three locations of Cox's Bazar coast, Bangladesh using 4×4 m horizontal coir rope net method were conducted during 2016 to 2018. Results showed that the biomass yield was highest from H. musciformis (30.23±0.40 kg fw m −1) and significantly differ from E. intestinalis (24.50±0.08 kg fw m −1) and P. tetrastromatica (10.18±0.45 kg fw m −1). The Daily Growth Rate (DGR) of H. musciformis (8.88% day −1) was also higher than the DGR of E. intestinalis (6.55% day −1) and P. tetrastromatica (6.74% day −1). Saint Martin's Island showed higher biomass yield of seaweeds than Bakkhali and Inani due to favourable water quality. In context to physico-chemical parameters of seaweed farming, Cox's Bazar coast is suitable for seaweed cultivation, although more suitable culture areas and longer culture period yet to be identified. The findings of the present study suggest that the cultivation of H. musciformis is viable and coastal people can take up such activities as seasonal income generating activity in coastal water.
... Despite the relevant ecological role of macroalgae, there are still many areas of the world where our knowledge about macroalgal diversity has important gaps. For example, in this volume, Islam et al. [6] reported for the first time the presence of the genus Chondria for the marine flora of Bangladesh. Moreover, Mantri et al. [7] provided in this volume a comprehensive review of the current knowledge of macroalgae in India, as well as significant inputs about their economic potential. ...
Macroalgae are a diverse and pervasive element of rocky shores [...]
