- Protist diversity and phylogeny
- Diatoms and Algae Research
- Marine and coastal plant biology
- Algal biology and biofuel production
- Microbial Community Ecology and Physiology
- Lichen and fungal ecology
- Biocrusts and Microbial Ecology
- Water Quality Monitoring Technologies
- Analytical Chemistry and Sensors
- Marine Biology and Ecology Research
- Water Quality Monitoring and Analysis
- Nematode management and characterization studies
- Botany and Plant Ecology Studies
- Photosynthetic Processes and Mechanisms
- Mycorrhizal Fungi and Plant Interactions
SUMMARY A new aerial alga, Stichococcus ampulliformis S. Handa sp. nov. (Trebouxiophyceae, Chlorophyta) is described based on a clone isolated from the bark of Cephalotaxus harringtonia (Knight ex Forbes) K. Koch collected Taishaku-kyo Gorge, Hiroshima Prefecture, south-west Japan. This alga was examined by light microscopy and transmission electron subjected to molecular phylogenetic analysis. Based its morphological features life-cycle, especially short filament formation, assigned...
Stichococcus Nägeli is a unicellular green algal species that belongs to the Trebouxiophyceae. bacillaris NIES-3639 propagates by binary fission, but can form filament without separating into two daughter cells. Transmission electron microscopy showed cytokinesis starts according invagination of plasma membrane at plane division. Synthesis cell wall occurs on surface invaginating during protoplast division phase. The mother may cleave after in either single-cell or state. Field emission...
SUMMARY Oocystaenium elegans Gonzalves & Mehra (Oocystaceae, Trebouxiophyceae) was collected from a paddy field in Japan. Its life history reexamined based on detailed observations of cultured material, and an emended description is given. This species large spindle‐shaped green alga that grows puddles fields has been reported India, Nepal Cuba. Reproduction occurs asexually via autospore formation sexually oogamy. Although this oogamy considered to involve fertilization by globular egg...
SUMMARY The family Trentepohliaceae contains many common aerial algae, most widely distributed, particularly in tropical and subtropical regions. Eight species of the genus Trentepohlia have been reported Japan. We report another taxon, brevicellulis (Cribb) S. Handa H. Tsubota comb. et stat. nov., growing on bark western Honshu, This alga was previously described as bosseae var. Cribb. However, relationship between varieties T. could not be ascertained owing to lack genetic information for...
The unicellular green microalgal genus Stichococcus Nägeli propagates by binary fission. In the present study, we measured DNA content of bacillaris in propidium iodide stained nuclei using laser scanning cytometry (LSC). Using Ulva compressa Linnaeus and Saccharomyces cerevisiae Hansen as references, nuclear genome size S. was calculated 80 Mbp. This value is approximately 4 times larger than that Nannochloris (20.3 Mbp), another member Trebouxiophyceae
A quick and simple new technique for measuring the chlorophyll content of water was devised using a meter (MINOLTA SPAD-502) normally used plant leaves. test sample filtered SPAD value obtained from filter converted to concentration. This study presents formula converting values concentration.This is remarkably efficient concentration waters containing specific algae, such as red-tide or bloom. It not yet suitable non-specific water.