Research on the Indian Subcontinent

Sridhar, Kandikere R.; Chandrashekar, K. R.; Kaveriappa, K. M.

doi:10.1007/978-3-642-76855-2_10

Cited by 35 publications

(28 citation statements)

References 43 publications

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“…longissima, F. curvula, L. curvula, T. monosporus and T. konajensis ). Similarly, the top three species ( L. curvula, T. monosporus and T. konajensis ) partially resembles with an earlier study in Konaje stream by monitoring water, foam and leaf litter (Sridhar et al 1992) supporting that latex-coated slides are reliable in monitoring aquatic hyphomycete communities in streams.…”

Section: Discussionsupporting

confidence: 80%

“…Assessment of leaf litter, water and foam samples in Konaje stream yielded about 18–20 species of aquatic hyphomycetes (Sridhar and Kaveriappa 1984; Sridhar et al 1992, 2013). Pooled data on latex-coated slides in our study showed 21 species and on the banyan ( F. benghalensis ) latex-coated slides entrapment of conidia was as highest as 15 species.…”

Section: Discussionmentioning

confidence: 99%

“…More studies would be needed to ascertain suitability of banyan and other latex in subtropical and temperate streams for assessment of community of aquatic hyphomycetes. Interestingly, baiting banyan leaf litter in the streams of Southwest India resulted in recovery of maximum number of species of aquatic hyphomycetes (Sridhar and Kaveriappa 1989; Sridhar et al 1992). …”

Section: Discussionmentioning

confidence: 99%

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A new technique to monitor conidia of aquatic hyphomycetes in streams using latex-coated slides

Ghate

Sridhar

2015

Mycology

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We examined the pattern of adherence of aquatic hyphomycetes conidia on six latex-coated slides (Artocarpus heterophyllus, A. hirsutus, Calotropis gigantea, Ficus benghalensis, Manilkara zapota and Plumeria rubra) with plain slides (control) exposed up to 18 h in a tropical coastal stream. Conidia of 21 species were trapped on latex-coated slides against seven on control slides. The total conidia adhered on latex-coated slides was higher than control slides. Latex-coated slides showed the highest diversity of aquatic hyphomycetes than control slides (1.805) and water (0.729). The top five species of aquatic hyphomycetes in latex-coated slides and drift conidia were comparable. Sørensen’s similarity of species in control slides against latex-coated slides ranged from 25% (P. rubra) to 62.5% (C. gigantea) indicating superiority of latex-coated slides in conidial trapping. Among the latex-coated slides, similarity varied between 13.3% (A. hirsutus vs. P. rubra) and 89.6% (F. benghalensis vs. M. zapota). One-way ANOVA showed significant difference in richness of species (P < 0.001) and conidia (P < 0.05) between control and latex-coated slides by F. benghalensis. Based on the trapping efficiency of species and conidia, the latex of F. benghalensis ranked first and serves as an inexpensive technique to monitor aquatic hyphomycetes in streams.

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Section: Discussionsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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A new technique to monitor conidia of aquatic hyphomycetes in streams using latex-coated slides

Ghate

Sridhar

2015

Mycology

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“…It seems that the water chemistry will be dependent on the input of organic matter either throughout the year (evergreen) or seasonally (deciduous) as mosaic of vegetation exists in the Western Ghats. There is clear cut evidence that the water chemistry and species richness of aquatic hyphomycetes from mountain, mid-altitude, foot hill and coastal streams (Sridhar et al 1992, Raviraja et al 1998a. Natural calamities and human interference (e.g.…”

Section: Discussionmentioning

confidence: 99%

Colonization and diversity of aquatic hyphomycetes in relation to decomposition of submerged leaf litter in River Kali (Western Ghats, India)

Sudheep¹

2013

Mycosphere

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Sudheep NM, Sridhar KR 2013 -Colonization and diversity of aquatic hyphomycetes in relation to decomposition of submerged leaf litter in River Kali (Western Ghats, India). Mycosphere 4(3), 456-476, Doi 10.5943/mycosphere/4/3/3 AbstractDynamics of leaf chemistry, quantitative studies and decomposition of leaves by aquatic hyphomycetes in the Western Ghats is investigated in this paper. A total of 28 species (range, 19-28 spp.) of aquatic hyphomycetes were recovered from natural and submerged (banyan and cashew) leaf litter in Kaiga stream and Kadra dam of the Western Ghats over three seasons (monsoon, post-monsoon and summer) in 12 months of 2008-09. Higher species richness and conidial output was seen during the post-monsoon season and this corroborates with earlier studies. Among the top six species, five were common in different locations of the Western Ghats (Anguillospora longissima, Flagellospora curvula, Lunulospora curvula, Triscelophorus acuminatus and T. monosporus). Among the 12 less frequent species, seven also occurred in low frequency in other locations of the Western Ghats (Clavariopsis aquatica, Dwayaangam cornuta, Flabellospora crassa, F. multiradiata, Ingoldiella hamata, Nawawia filiformis and Tricladium sp.). Leaf litter decomposition resulted in elevation of nitrogen and decrease in phosphorus and total phenolics. Cellulase was higher in banyan than cashew leaves compared to xylanase and pectinase in stream and dam locations. The enzyme activity peaked within one or two weeks and subsequently remained steady with a few exceptions coinciding with increase in total nitrogen, decrease in total phenolics and leaf mass loss. Banyan and cashew leaf litter in Kaiga stream and Kadra dam falls in the slow decomposing category over three seasons (k, 0.0030-0.00.0050). Decomposition of banyan leaves (k, 0.0037-0.0050) was faster than cashew leaves (k, 0.0030-0.0043) in stream as well as dam sites. This was reflected in changes in leaf chemistry (slow decrease of organic carbon, phosphorus, phenolics and gradual increase in nitrogen), low enzyme activity (xylanase and pectinase), low fungal richness, conidial output and fungal diversity in dam location. Leaf mass of banyan and cashew was positively correlated with organic carbon, phosphorus and total phenolics, while negatively correlated with nitrogen and enzyme activity. Negative correlation between phenolics and enzymes reveals that the mass loss was dependent on the quantity and extent of leaching of phenolics. Overall, the assemblage of aquatic hyphomycetes on leaf litter in Kaiga stream and Kadra dam imitates other locations of the Western Ghats with variations in dynamics of leaf chemistry, decomposition and mass loss.

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“…However, such seasonal fluctuations vary depending on geographic locations (Sridhar and Kaveriappa 1984, 1989a; Bärlocher 1992, 2000). In southwestern India, major spell of aquatic hyphomycetes occur during monsoon and post-monsoon periods (Sridhar et al 1992). Although dynamics of aquatic hyphomycetes have been investigated based on drift conidia in different parts of the world (Müller-Haeckel and Marvanová 1979; Shearer and Lane 1983; Aimer and Segedin 1985; Shearer and Webster 1985; Thomas et al 1989; Fabre 1998; Gönczöl and Révay 1999; Gönczöl et al 2001), studies on diurnal fluctuations of drift conidia in streams seem to be scanty (Thomas et al 1991, 1992; Sridhar and Sudheep 2010; Ghate and Sridhar 2015).…”

Section: Introductionmentioning

confidence: 99%

Diurnal periodicity of conidia of aquatic hyphomycetes in water and entrapment on latex-coated slides in two South Indian streams

Ghate

Sridhar

2016

Mycology

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Aquatic hyphomycete conidial trapping efficiency by the banyan (F. benghalensis L.) latex-coated glass slides was tested diurnally (3 h intervals) in the Western Ghats (Sampaje) and west coast (Konaje) streams in relation to abiotic factors (humidity, air temperature and water temperature). The conidial trapping efficiency of latex-coated slides was compared with plain glass slides and drift conidia in water. Three methods of assessment showed higher species richness, conidial richness and diversity in Sampaje than in Konaje stream. In both streams, species richness, conidial richness and diversity in latex-coated slides were the highest followed by conidia in water and plain slides. Three-way ANOVA revealed significant differences in overall species and conidial richness between the streams, sampling methods and time of sampling (p < 0.001). Multiple comparisons by Holm–Sidak test revealed significant differences in overall species and conidial richness between Sampaje and Konaje (p < 0.001); latex-coated slides and plain slides (p < 0.001); latex-coated slides and water filtration (p < 0.001); plain slides and water filtration (p < 0.001). Total species, total conidia and diversity assessed by the three methods peaked during 12 am–3 am in Sampaje stream, while during 3 am–6 am in Konaje stream. Cooler conditions due to relatively low water temperature favoured higher diversity of aquatic hyphomycetes in Sampaje than in Konaje stream. The three methods employed in the present study were not biased towards scolecoid or stauroid conidia. The top five species in both streams was composed of both types of conidia corroborating earlier annual or biannual studies in Konaje and Sampaje streams. Thus, assessment of population of aquatic hyphomycetes using banyan latex-coated slides will be advantageous over plain slides and drift conidia in streams.

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Research on the Indian Subcontinent

Cited by 35 publications

References 43 publications

A new technique to monitor conidia of aquatic hyphomycetes in streams using latex-coated slides

A new technique to monitor conidia of aquatic hyphomycetes in streams using latex-coated slides

Colonization and diversity of aquatic hyphomycetes in relation to decomposition of submerged leaf litter in River Kali (Western Ghats, India)

Diurnal periodicity of conidia of aquatic hyphomycetes in water and entrapment on latex-coated slides in two South Indian streams

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