1991
DOI: 10.2216/i0031-8884-30-3-303.1
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Distribution and biomass estimation of shell-boring algae in the intertidal at Goa, India

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Cited by 12 publications
(12 citation statements)
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“…To confirm beyond the molecular signatures and confocal microscopy if active anoxygenic phototrophy was occurring within the endolithic microbiome, we analyzed lipid-soluble extracts by high-performance liquid chromatography (HPLC) with online diode array spectroscopy detection to isolate and identify major photopigments. As expected, we found concentrations of Chl a within the typical range that had been determined elsewhere in these systems (42,43). But, we also found bacteriochlorophylls (Bchls) ( Table 2; see also Table S1 in the supplemental material): Bchl c (as various isomers [44]) was detected in every sample, Bchl a was detected in eight samples from Isla de Mona and in all samples from Menorca, and Bchl d was detected in two samples from Isla de Mona and four samples from Menorca.…”
Section: Resultssupporting
confidence: 87%
“…To confirm beyond the molecular signatures and confocal microscopy if active anoxygenic phototrophy was occurring within the endolithic microbiome, we analyzed lipid-soluble extracts by high-performance liquid chromatography (HPLC) with online diode array spectroscopy detection to isolate and identify major photopigments. As expected, we found concentrations of Chl a within the typical range that had been determined elsewhere in these systems (42,43). But, we also found bacteriochlorophylls (Bchls) ( Table 2; see also Table S1 in the supplemental material): Bchl c (as various isomers [44]) was detected in every sample, Bchl a was detected in eight samples from Isla de Mona and in all samples from Menorca, and Bchl d was detected in two samples from Isla de Mona and four samples from Menorca.…”
Section: Resultssupporting
confidence: 87%
“…Our concentrations per volume (mg Á mL À 1 ) converted to 0.59 AE 0.15 g Á m À 2 and were higher than amounts per m 2 of experimental blocks in a shallow reef after 29 days of exposure (0.07-0.11 g Á m À 2 ; Wanders 1977) and in natural coral limestone in a deep coral reef in Curaçao (0.12-0.14 g Á m À 2 of substrate surface; de Ruyter van Steveninck and Breeman 1981). However, Raghukumar et al (1991) reported 2-fold higher concentrations in molluscan shells in the intertidal of Goa, India (420 mg Á mL À 1 shell), which refers to a different substrate in a different environment. Biosphere NP rates for whole blocks and quarter blocks were similar for lagoonal and oceanic sites.…”
Section: Origin Of Blocksmentioning
confidence: 96%
“…Once colonization by the shell-boring microalgae had occurred, the euendoliths spread throughout the organic calcareous substrate causing its deformation (Figs 3, 12-14), due to chromatic alteration and progressive shell destruction (Smyth, 1990;Raghukumar et al, 1991;Perry, 1998;Kaehler, 1999). Heavily infested empty valves or older shells appear green due to the photosynthetic pigments of shell-boring phototrophs.…”
Section: Bioerosion -Penetration Patternsmentioning
confidence: 99%
“…The vast majority of studies deal with the microflora of the marine littoral zone, mostly in carbonates of inorganic origin. Relatively few studies have been carried out on the euendolithic microflora thriving within carbonates of organic origin, namely reef corals (Lukas, 1973(Lukas, , 1974Le Campion-Alsumard, 1991;Le Campion-Alsumard et al, 1995;Holmes et al, 2000), mollusc shells (see Raghukumar et al, 1991), and crustose as well as articulated red algae (Perry, 1998;Ghirardelli, 1998Ghirardelli, , 2002Pantazidou et al, 2001;Tribolet & Payri, 2001). …”
Section: Introductionmentioning
confidence: 99%
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