Journal
ALGAE
Volume 30, Issue 3, Pages 207-216Publisher
KOREAN SOC PHYCOLOGY
DOI: 10.4490/algae.2015.30.3.207
Keywords
Caloglossa beccarii; Caloglossa fluviatilis; India; Kerala; LSU; rbcL
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Funding
- JSPS Kakenhi [19570092]
- Australian Research Council
- Australian Biological Resources Study
- Hermon Slade Foundation
- Grants-in-Aid for Scientific Research [15K07194, 19570092, 24570106] Funding Source: KAKEN
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Caloglossa species occurs in freshwater streams around Southest Asia. We report it from 2 different riverine sites in Kerala, India. Tetrasporangiate plants were observed in field collections from the Periyar River and Chalakkudy River. The Chalakkudy isolate did not reproduce in culture but the Periyar isolate developed abundant tetrasporangial sori in culture. Many spores were discharged and most were abortive, but some germinated normally, sporelings forming male gametophytes with numerous spermatangial sori and females with many procarps, viable carposporophytes and some nonfunctional (no carpospores) pseudocystocarps. Some carpospores germinated forming new tetrasporophytes. Molecular evidence (28S rDNA and rbcL) placed the Indian specimens close to C. beccarii and C. fluviatilis. Considering the freshwater habitat and morphology of vegetative thalli (blade shape, rhizoid arrangement, and number of rhizoid filament per cell), the Indian specimens should be assigned to C. beccarii.
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