Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Y. S. R. K. Sarma"'
Autor:
S. C. Agrawal, Y. S. R. K. Sarma
Publikováno v:
Zeitschrift für allgemeine Mikrobiologie. 23:347-350
The present study emphasizes the effects of different qualities of visible light, intensities of white light, temperature and pH on the sporulation in the green alga Pithophora oedogonia (Mont.) Wittrock. Of the different qualities of light used, gre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a767228dc567a12362d13ae7076f444a
https://doi.org/10.1002/jobm.19830230602
https://doi.org/10.1002/jobm.19830230602
Autor:
Y. S. R. K. Sarma, P. Abhayavardhani
Publikováno v:
CYTOLOGIA. 48:467-482
Karyological investigatoins were made on 24 taxa of Spirogyra Link and their chromosome numbers have been reported. The chromosome numbers in various taxa exhibited a wide variation ranging from n=2 in S. VRG 80 to n=92±2 in S. nitida, the latter be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0eaacba90d6e1a588ad3d9165ca3569
https://doi.org/10.1508/cytologia.48.467
https://doi.org/10.1508/cytologia.48.467
Autor:
R. Shyam, Y. S. R. K. Sarma
Publikováno v:
Caryologia. 29:27-33
SUMMARYThe effects of colchicine on a colonial algal flagellate Gonium pectorale (Volvocales, Chlorophyceae) are recorded for the first time. While, lower concentrations up to 0.5% of colchicine do not produce any effects, 1.0% concentration of this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a7c7a6aac8b83041f596ff92f428017
https://doi.org/10.1080/00087114.1976.10796646
https://doi.org/10.1080/00087114.1976.10796646
Autor:
Y. S. R. K. Sarma, K. Vedajanani
Publikováno v:
CYTOLOGIA. 44:437-447
The material of Spirogyra azygospora Singh was exposed to different doses of UV light ranging from 5.22×103 ergs/mm2 to 52.2×103 ergs/mm2. 52.2×103 ergs/mm2 and 26.1×103 ergs/mm2 proved to be completely lethal and sublethal doses respectively to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94c1b1220ba9d4f37949108b0e10280d
https://doi.org/10.1508/cytologia.44.437
https://doi.org/10.1508/cytologia.44.437
Autor:
R. Shyam, Y. S. R. K. Sarma
Publikováno v:
Hydrobiologia. 70:83-93
The present communication deals with the morphology, reproduction and cytology of Stigeoclonium pascheri (formerly described as Caespitella pascheri Vischer). Effects of various concentrations of nitrate and variations in intensity and duration of li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8a9f6c0e96ea64fbb3186379120e8d4
https://doi.org/10.1007/bf00015494
https://doi.org/10.1007/bf00015494
Autor:
R. Shyam, Y. S. R. K. Sarma
Publikováno v:
Plant Systematics and Evolution. 124:205-212
The distinctive morphological and karyological features of the two new species, collected from freshwater habitats in North India, are presented and compared with those of related taxa of the generaWoloszynskia andGymnodinium. Asexual reproduction ta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c81f1fda03adb1d2f03d2b58ee7ea316
https://doi.org/10.1007/bf00992726
https://doi.org/10.1007/bf00992726
Autor:
P. Abhayavardhani, Y. S. R. K. Sarma
Publikováno v:
Phycologia. 21:131-136
Karyological investigations on five desmid taxa are reported. The range of chromosome numbers was found to vary from n = 8 to n = 130 ± 2. Chromosome numbers of Desmidium aptogonum (n = 8), Cosmarium subturgidum (n = 28) and C. hammeri (n = 48 ± 1)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3a5c962628c7dcd75745538f2a05b23
https://doi.org/10.2216/i0031-8884-21-2-131.1
https://doi.org/10.2216/i0031-8884-21-2-131.1
Publikováno v:
Phycologia. 19:253-259
Karyological investigations on six species of Stigeoclonium and three of Chaetophora (Chaetophorales, Chlorophyceae) are reported. While Stigeoclonium spp. were grown in BBMPTB 12 medium, the species of Chaetophora were cultivated in modified Chu-10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0524ac0f8a8ba7ac88cb05ffeab2e1b4
https://doi.org/10.2216/i0031-8884-19-4-253.1
https://doi.org/10.2216/i0031-8884-19-4-253.1
Autor:
B. R. Chaudhary, Y. S. R. K. Sarma
Publikováno v:
Hydrobiologia. 47:181-191
Schizomeris leibleinii Kutz was collected from Dehra Dun as well as from Varanasi and the observations on its morphology, asexual reproduction and cytology were made by using material from nature and in culture. Cultural studies have revealed some in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a77c274abff044a000de81d322e71267
https://doi.org/10.1007/bf00039053
https://doi.org/10.1007/bf00039053
Autor:
Y. S. R. K. Sarma, S. N. Tripathi
Publikováno v:
Caryologia. 29:263-276
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7be2f8d13592b18c0e243dbe22be190
https://doi.org/10.1080/00087114.1976.10796666
https://doi.org/10.1080/00087114.1976.10796666