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Shivanna, K. R.
- A Doyen of Indian Botanists: H. Y. Mohan Ram
Abstract Views :237 |
PDF Views:89
Authors
Affiliations
1 Department of Biochemistry, Indian Institute of Science, Bangalore 560 012, IN
2 Department of Botany, University of Delhi, Delhi 110 007, IN
3 Indian Institute of Horticultural Research, Bangalore 560 089, IN
4 Centre for Ecological Sciences, Indian Institute of Science, Bangalore 560 012, IN
5 Department of Botany, Gargi College, Delhi 110 049, IN
1 Department of Biochemistry, Indian Institute of Science, Bangalore 560 012, IN
2 Department of Botany, University of Delhi, Delhi 110 007, IN
3 Indian Institute of Horticultural Research, Bangalore 560 089, IN
4 Centre for Ecological Sciences, Indian Institute of Science, Bangalore 560 012, IN
5 Department of Botany, Gargi College, Delhi 110 049, IN
Source
Current Science, Vol 106, No 2 (2014), Pagination: 305-309Abstract
No Abstract.Full Text
- A Doyen of Indian Botanists: H. Y. Mohan Ram
Abstract Views :213 |
PDF Views:94
Authors
Source
Current Science, Vol 106, No 4 (2014), Pagination: 619-619Abstract
No Abstract.Full Text
- Trichodesma zeylanicum: an Unusual Pollination System with Chasmogamous Flowers and Obligate Autogamy
Abstract Views :275 |
PDF Views:86
Authors
Affiliations
1 Ashoka Trust for Research in Ecology and the Environment, Royal Enclave, Srirampura, Jakkur Post, Bengaluru 560 064, IN
1 Ashoka Trust for Research in Ecology and the Environment, Royal Enclave, Srirampura, Jakkur Post, Bengaluru 560 064, IN
Source
Current Science, Vol 107, No 5 (2014), Pagination: 743-745Abstract
No Abstract.Full Text
- Reproductive Assurance through Autogamous Self-Pollination across Diverse Sexual and Breeding Systems
Abstract Views :238 |
PDF Views:84
Authors
Affiliations
1 Ashoka Trust for Research in Ecology and the Environment, Royal Enclave, Srirampura, Jakkur Post, Bengaluru 560 064, IN
1 Ashoka Trust for Research in Ecology and the Environment, Royal Enclave, Srirampura, Jakkur Post, Bengaluru 560 064, IN
Source
Current Science, Vol 109, No 7 (2015), Pagination: 1255-1263Abstract
Pollination becomes a constraint when conspecific plants and/or their pollinators become scarce. Many plant species have evolved autogamous self-pollination as a means of reproductive assurance (RA) under pollination-uncertain environments. So far RA has been studied and discussed largely with reference to self-compatible species producing bisexual flowers. RA seems to have evolved across all other sexual and breeding systems - monoecy, dioecy and self-incompatibility (SI). Both monoecy and dioecy produce bisexual flowers (andro/gyno-monoecy, andro/gynodioecy and polygamous conditions) which may provide RA. Similarly, most of the SI species are leaky and do set some seeds upon self-pollination. This phenomenon termed 'partial self-compatibility' is quite common and does provide RA in SI species. Although dioecy and SI have evolved as obligate outbreeding systems, they seem to have reached an evolutionary dead end because of the constraints for outcross pollination. In the light of habitat destruction leading to a reduction in the diversity and density of native pollinators, it is likely that many of the obligate outbreeders tend to shift to mixed mating system in the coming decades. Similarly, obligate mutualism in which each plant species is dependent on one animal species for pollination also seems to have reached a dead end and the trend is to abandon such obligate mutualism as a survival strategy. In the absence of such a change, obligate outbreeders and those with highly specialized pollination system are likely to become endangered or even extinct.Keywords
Autogamy, Dioecy, Evolutionary Dead End, Mixed Mating System, Monoecy, Reproductive Assurance, Self-Incompatibility.Full Text
- H. Y. Mohan Ram (1930–2018)
Abstract Views :392 |
PDF Views:78
Authors
Affiliations
1 Ashoka Trust for Research in Ecology and the Environment, Srirampura, Jakkur Post, Bengaluru 560 064, IN
1 Ashoka Trust for Research in Ecology and the Environment, Srirampura, Jakkur Post, Bengaluru 560 064, IN
Source
Current Science, Vol 115, No 1 (2018), Pagination: 168-171Abstract
India lost one of its most distinguished botanists, Professor Holenarasipur Yoganarasimham Mohan Ram, on 18 June 2018. He was born on 24 September 1930 to illustrious parents at Mysore, Karnataka. His father was a great Sanskrit scholar and distinguished musician. Mohan Ram’s elder brother, H. Y. Sharada Prasad was an eminent journalist and Press Advisor to four Prime Ministers of the country.Full Text