Celastrus paniculatus Willd. is an important threatened medicinal woody liana native to the India... more Celastrus paniculatus Willd. is an important threatened medicinal woody liana native to the Indian subcontinent. It is distributed chiefly in the deciduous forests, up to an altitude of 1800 m. This species is globally distributed from South Asia to Australia. The seed oil of C. paniculatus is used as a brain tonic for enhancing memory. Due to the over exploitation of the plant for its medicinal values, the plant is listed in the rare endangered and threatened (RET) category. Genetic diversity of C. paniculatus was studied at four different natural populations located at different elevations (48, 700, 1072 and 1793 m) of Southern Western Ghats. Random Amplified Polymorphic DNA (RAPD) markers were used to assess the genetic diversity among four populations. Variations in morphological characters were also observed among the populations. 20 RAPD primers were used to amplify the genomic DNA. A total of 385 bands were generated from 20 primers, 228 (59%) being polymorphic, indicating medium genetic diversity among the populations.
The bryophyte flora of the Aralam Wildlife Sanctuary in the Western Ghats of India is catalogued ... more The bryophyte flora of the Aralam Wildlife Sanctuary in the Western Ghats of India is catalogued for the first time. The catalogue consists of 116 taxa (89 mosses, 27 liverworts), of which two are new for India (Plagiochila singularis, Vesicularia dubyana), 21 species are newly reported for Peninsular India (Clastobryopsis planula var. delicata, Barbella chrysonema, Brachymenium leptophyllum, Brachythecium rutabulum, Cololejeunea longifolia, Cyathodium tuberosum, Dicranella amplexans, Didymodon vinealis, Duthiella wallichi, Fabronia assamica, Haplocladium microphyllum, Himantocladium cyclophyllum, Homalia trichomanoides var. trichomanoides, Isopterygium serrulatum, Leskea perstricta, Lopholejeunea kashyapii, Leptotrichella assamica, Macromitrium turgidum, Rhynchostegium hookeri, Splachnobryum assamicum, Thamnobryum siamense) and another 14 species are new for Kerala State (Atrichum pallidum, Chionostomum rostratum, Claopodium prionophyllum, Cololejeunea lanciloba, Cyathophorum adian...
International Journal of Approximate Reasoning, 2017
and Madhusoodanan PV 6 . 1. Government Victoria College, Palakkad, Kerala, India. 2. Department o... more and Madhusoodanan PV 6 . 1. Government Victoria College, Palakkad, Kerala, India. 2. Department of Botany, University of Calicut, Kerala, India. 3. Bishop Abraham Memorial College, Thuruthicad, Pathanamthitta, Kerala, India. 4. Department of Botany and Biotechnology, Bishop Moore College, Mavelikkara, Kerala, India. 5. Plant Disease Biology & Biotechnology, Rajiv Gandhi Centre For Biotechnology, Thiruvananthapuram, Kerala, India. 6. Malabar Botanical Garden and Institute for Plant Sciences, Olavanna, Kozhikode, Kerala, India. ...................................................................................................................... Manuscript Info Abstract ......................... ........................................................................ Manuscript History
... Title Groutiella tomentosa (Hornsch.) Wijk & Margad. (Orthotrichaceae: Bryopsida), a new ... more ... Title Groutiella tomentosa (Hornsch.) Wijk & Margad. (Orthotrichaceae: Bryopsida), a new record for peninsular India. Authors Manju; Nair, C.; Rajesh, KP; Madhusoodanan, PV Journal Indian Journal of Forestry 2009 Vol. 32 No. 3 pp. ...
The paper reports the occurrence of Nardia assamica (Mitt.) Amakawa, belonging to the family Jung... more The paper reports the occurrence of Nardia assamica (Mitt.) Amakawa, belonging to the family Jungermanniaceae, a rare leafy liverwort from Malabar Wildlife Sanctuary, Kerala. It is very small and tufted plant, seen on vertical soil cuttings. This endemic Indian species so far is known from Himalayas only, hence reported here with detailed taxonomic description and photographs. Keywords: Nardia, Jungermanniaceae, liverwort, Malabar wildlife sanctuary Cite this Article Prajitha B, Rajilesh VK, Prakashkumar R et al. Nardia assamica (Mitt.) Amakawa (Jungermanniaceae), from Malabar Wildlife Sanctuary, a New Record for Peninsular India. Research & Reviews: Journal of Botany. 2017; 6(3): 11–13p.
Spore germination, prothallial development and juvenile sporophyte morphology of Pronephrium arti... more Spore germination, prothallial development and juvenile sporophyte morphology of Pronephrium articulatum (Houlst. & Moore) Holttum are described and compared with other thelypteroid species. Its bearing on phylogeny of thelypteroid fems discussed.
The bryophyte flora of the Agasthyamalai Biosphere Reserve is catalogued. There is no previous re... more The bryophyte flora of the Agasthyamalai Biosphere Reserve is catalogued. There is no previous report of bryophytes from this area. The checklist consists of 90 taxa (58 mosses, 32 liverworts), of which 16 species are newly reported for the Peninsular India (Asterella reticulata, Bazzania sumbavensis, Cephalozia pandei, Clastobryopsis muelleri, Cyathophorella adiantum, Dicranoloma subreflexifolium, Herbertus dicranus, Himantocladium cyclophyllum, Hypnum plumaeforme, H. sikkimense, Leucobryum cucullifolium, Radula grandifolia, Symblepharis vaginata, Symphyodon echinatus, Trichocolea udarii and Trichostelium boschii) and another 6 are new for the Kerala State (Campylopus involutus, Cephaloziella willisiana, Frullania ericoides, Macromitrium moorcroftii, Metzgeria decipiens and Leucobryum mittenii).
Silver nitrate induced enhanced rooting and flowering in vitro was achieved on Rotula aquatica L.... more Silver nitrate induced enhanced rooting and flowering in vitro was achieved on Rotula aquatica L., a rare rhoeophytic woody aromatic medicinal plant. Solid and liquid nature of the medium, and growth regulators significantly influenced in vitro rooting and flowering. Half-strength MS liquid medium fortified with 2.69 μM α-naphthaleneacetic acid (NAA) was effective among different auxins, which induced a mean of 7.3 roots per shoot. Plantlets acclimatized after auxin alone induced rooting exhibited 80% survival in field conditions. Nevertheless, the established plantlets exhibited 50% loss within 3 months. Addition of 11.7 μM silver nitrate to half-strength MS liquid medium containing 2.69 μM NAA increased the number of roots to 16.8 per shoot. Plantlets established after rooting in silver nitrate supplemented medium facilitated 95% survival, and the established plantlets did not exhibit loss even after 3 months. Dipping of the basal end of shoots developed in vitro in NAA (2.69 μM) ...
Nymphoides indica (L.) O. Kuntze an emergent aquatic plant of Menyanthaceae, commonly called ‘flo... more Nymphoides indica (L.) O. Kuntze an emergent aquatic plant of Menyanthaceae, commonly called ‘floating hearts” is bisexual, hypogynous and distylous (Two types of style – long style and short style) with 4 – 8 sepals and petals. Stamens correspond to the number of petals. The present study deals with phenology, pollen biology and stigma receptivity of N. indica. The pollen grains are yellow, medium, monad, triangular, heteropolar, radially symmetric, parasyncolpate and prolate – spheroidal in shape. The viable pollen grains becomes pink or red in 1% aceto carmine, blue coloured in aniline blue lactophenol stain and brown coloured in IKI solution. Stigma receptivity was high in the post pollination period. Keywords : Nymphoides indica, floating hearts, phenology, stigma receptivity, pollen viability Cite this Article P. Pavisha, P. V. Madhusoodanan, R. Prakashkumar. Pollen Biology and Stigma Receptivity in Nymphoides Indica (L.) O. Kuntze (Menyanthaceae). Research & Reviews: A Journa...
The Present study reveals the molecular variations in different species of Lagenandra , an aquati... more The Present study reveals the molecular variations in different species of Lagenandra , an aquatic plant collected from different geographical areas of Kerala State, India. Molecular analysis was carried out using ISSR markers. Out of the 18 primers screened, a total of 66 scorable polymorphic markers were generated. The genetic distance between the population ranged from 0.0016 to 0.0271 and the genetic identity ranged from 0.9732 to 0.9984.The standard deviation of Gene diversity, Shannon's Information index and effective number of alleles are about 0.1468, 0.0719 and 0.0866 respectively. It is evident that that there is distinct genetic variability among Lagenandra species, occurring in Kerala.
Blue-green algae (also called cyanobacteria) are ubiquitous, pristine and pioneer photosynthetic ... more Blue-green algae (also called cyanobacteria) are ubiquitous, pristine and pioneer photosynthetic microorganisms. Many species of cyanobacteria are capable of fixing atmospheric nitrogen and such species in wet soils are simultaneously augmenting the fertility of the soil, acting as natural bio-fertilizers. Nostoc and Anabaena are the two important genera of heterocystous cyanobacteria capable of contributing nitrogen to soil, especially in paddy fields. The major objectives of the investigation included survey, collection, isolation and pure culture of nitrogen-fixing species of Cyanobacteria in the soils of Kerala state, India. Altogether, pure cultures of 12 species of Nostoc and 5 species of Anabaena are prepared.
Celastrus paniculatus Willd. is an important threatened medicinal woody liana native to the India... more Celastrus paniculatus Willd. is an important threatened medicinal woody liana native to the Indian subcontinent. It is distributed chiefly in the deciduous forests, up to an altitude of 1800 m. This species is globally distributed from South Asia to Australia. The seed oil of C. paniculatus is used as a brain tonic for enhancing memory. Due to the over exploitation of the plant for its medicinal values, the plant is listed in the rare endangered and threatened (RET) category. Genetic diversity of C. paniculatus was studied at four different natural populations located at different elevations (48, 700, 1072 and 1793 m) of Southern Western Ghats. Random Amplified Polymorphic DNA (RAPD) markers were used to assess the genetic diversity among four populations. Variations in morphological characters were also observed among the populations. 20 RAPD primers were used to amplify the genomic DNA. A total of 385 bands were generated from 20 primers, 228 (59%) being polymorphic, indicating medium genetic diversity among the populations.
The bryophyte flora of the Aralam Wildlife Sanctuary in the Western Ghats of India is catalogued ... more The bryophyte flora of the Aralam Wildlife Sanctuary in the Western Ghats of India is catalogued for the first time. The catalogue consists of 116 taxa (89 mosses, 27 liverworts), of which two are new for India (Plagiochila singularis, Vesicularia dubyana), 21 species are newly reported for Peninsular India (Clastobryopsis planula var. delicata, Barbella chrysonema, Brachymenium leptophyllum, Brachythecium rutabulum, Cololejeunea longifolia, Cyathodium tuberosum, Dicranella amplexans, Didymodon vinealis, Duthiella wallichi, Fabronia assamica, Haplocladium microphyllum, Himantocladium cyclophyllum, Homalia trichomanoides var. trichomanoides, Isopterygium serrulatum, Leskea perstricta, Lopholejeunea kashyapii, Leptotrichella assamica, Macromitrium turgidum, Rhynchostegium hookeri, Splachnobryum assamicum, Thamnobryum siamense) and another 14 species are new for Kerala State (Atrichum pallidum, Chionostomum rostratum, Claopodium prionophyllum, Cololejeunea lanciloba, Cyathophorum adian...
International Journal of Approximate Reasoning, 2017
and Madhusoodanan PV 6 . 1. Government Victoria College, Palakkad, Kerala, India. 2. Department o... more and Madhusoodanan PV 6 . 1. Government Victoria College, Palakkad, Kerala, India. 2. Department of Botany, University of Calicut, Kerala, India. 3. Bishop Abraham Memorial College, Thuruthicad, Pathanamthitta, Kerala, India. 4. Department of Botany and Biotechnology, Bishop Moore College, Mavelikkara, Kerala, India. 5. Plant Disease Biology & Biotechnology, Rajiv Gandhi Centre For Biotechnology, Thiruvananthapuram, Kerala, India. 6. Malabar Botanical Garden and Institute for Plant Sciences, Olavanna, Kozhikode, Kerala, India. ...................................................................................................................... Manuscript Info Abstract ......................... ........................................................................ Manuscript History
... Title Groutiella tomentosa (Hornsch.) Wijk & Margad. (Orthotrichaceae: Bryopsida), a new ... more ... Title Groutiella tomentosa (Hornsch.) Wijk & Margad. (Orthotrichaceae: Bryopsida), a new record for peninsular India. Authors Manju; Nair, C.; Rajesh, KP; Madhusoodanan, PV Journal Indian Journal of Forestry 2009 Vol. 32 No. 3 pp. ...
The paper reports the occurrence of Nardia assamica (Mitt.) Amakawa, belonging to the family Jung... more The paper reports the occurrence of Nardia assamica (Mitt.) Amakawa, belonging to the family Jungermanniaceae, a rare leafy liverwort from Malabar Wildlife Sanctuary, Kerala. It is very small and tufted plant, seen on vertical soil cuttings. This endemic Indian species so far is known from Himalayas only, hence reported here with detailed taxonomic description and photographs. Keywords: Nardia, Jungermanniaceae, liverwort, Malabar wildlife sanctuary Cite this Article Prajitha B, Rajilesh VK, Prakashkumar R et al. Nardia assamica (Mitt.) Amakawa (Jungermanniaceae), from Malabar Wildlife Sanctuary, a New Record for Peninsular India. Research & Reviews: Journal of Botany. 2017; 6(3): 11–13p.
Spore germination, prothallial development and juvenile sporophyte morphology of Pronephrium arti... more Spore germination, prothallial development and juvenile sporophyte morphology of Pronephrium articulatum (Houlst. & Moore) Holttum are described and compared with other thelypteroid species. Its bearing on phylogeny of thelypteroid fems discussed.
The bryophyte flora of the Agasthyamalai Biosphere Reserve is catalogued. There is no previous re... more The bryophyte flora of the Agasthyamalai Biosphere Reserve is catalogued. There is no previous report of bryophytes from this area. The checklist consists of 90 taxa (58 mosses, 32 liverworts), of which 16 species are newly reported for the Peninsular India (Asterella reticulata, Bazzania sumbavensis, Cephalozia pandei, Clastobryopsis muelleri, Cyathophorella adiantum, Dicranoloma subreflexifolium, Herbertus dicranus, Himantocladium cyclophyllum, Hypnum plumaeforme, H. sikkimense, Leucobryum cucullifolium, Radula grandifolia, Symblepharis vaginata, Symphyodon echinatus, Trichocolea udarii and Trichostelium boschii) and another 6 are new for the Kerala State (Campylopus involutus, Cephaloziella willisiana, Frullania ericoides, Macromitrium moorcroftii, Metzgeria decipiens and Leucobryum mittenii).
Silver nitrate induced enhanced rooting and flowering in vitro was achieved on Rotula aquatica L.... more Silver nitrate induced enhanced rooting and flowering in vitro was achieved on Rotula aquatica L., a rare rhoeophytic woody aromatic medicinal plant. Solid and liquid nature of the medium, and growth regulators significantly influenced in vitro rooting and flowering. Half-strength MS liquid medium fortified with 2.69 μM α-naphthaleneacetic acid (NAA) was effective among different auxins, which induced a mean of 7.3 roots per shoot. Plantlets acclimatized after auxin alone induced rooting exhibited 80% survival in field conditions. Nevertheless, the established plantlets exhibited 50% loss within 3 months. Addition of 11.7 μM silver nitrate to half-strength MS liquid medium containing 2.69 μM NAA increased the number of roots to 16.8 per shoot. Plantlets established after rooting in silver nitrate supplemented medium facilitated 95% survival, and the established plantlets did not exhibit loss even after 3 months. Dipping of the basal end of shoots developed in vitro in NAA (2.69 μM) ...
Nymphoides indica (L.) O. Kuntze an emergent aquatic plant of Menyanthaceae, commonly called ‘flo... more Nymphoides indica (L.) O. Kuntze an emergent aquatic plant of Menyanthaceae, commonly called ‘floating hearts” is bisexual, hypogynous and distylous (Two types of style – long style and short style) with 4 – 8 sepals and petals. Stamens correspond to the number of petals. The present study deals with phenology, pollen biology and stigma receptivity of N. indica. The pollen grains are yellow, medium, monad, triangular, heteropolar, radially symmetric, parasyncolpate and prolate – spheroidal in shape. The viable pollen grains becomes pink or red in 1% aceto carmine, blue coloured in aniline blue lactophenol stain and brown coloured in IKI solution. Stigma receptivity was high in the post pollination period. Keywords : Nymphoides indica, floating hearts, phenology, stigma receptivity, pollen viability Cite this Article P. Pavisha, P. V. Madhusoodanan, R. Prakashkumar. Pollen Biology and Stigma Receptivity in Nymphoides Indica (L.) O. Kuntze (Menyanthaceae). Research & Reviews: A Journa...
The Present study reveals the molecular variations in different species of Lagenandra , an aquati... more The Present study reveals the molecular variations in different species of Lagenandra , an aquatic plant collected from different geographical areas of Kerala State, India. Molecular analysis was carried out using ISSR markers. Out of the 18 primers screened, a total of 66 scorable polymorphic markers were generated. The genetic distance between the population ranged from 0.0016 to 0.0271 and the genetic identity ranged from 0.9732 to 0.9984.The standard deviation of Gene diversity, Shannon's Information index and effective number of alleles are about 0.1468, 0.0719 and 0.0866 respectively. It is evident that that there is distinct genetic variability among Lagenandra species, occurring in Kerala.
Blue-green algae (also called cyanobacteria) are ubiquitous, pristine and pioneer photosynthetic ... more Blue-green algae (also called cyanobacteria) are ubiquitous, pristine and pioneer photosynthetic microorganisms. Many species of cyanobacteria are capable of fixing atmospheric nitrogen and such species in wet soils are simultaneously augmenting the fertility of the soil, acting as natural bio-fertilizers. Nostoc and Anabaena are the two important genera of heterocystous cyanobacteria capable of contributing nitrogen to soil, especially in paddy fields. The major objectives of the investigation included survey, collection, isolation and pure culture of nitrogen-fixing species of Cyanobacteria in the soils of Kerala state, India. Altogether, pure cultures of 12 species of Nostoc and 5 species of Anabaena are prepared.
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