Topic
Scadoxus multiflorus
About: Scadoxus multiflorus is a research topic. Over the lifetime, 7 publications have been published within this topic receiving 19 citations. The topic is also known as: Football lily.
Papers
TL;DR: It is shown that the ends of Scadoxus multiflorus chromosomes harbor human instead of Arabidopsis-type telomere sequences, which is important for better understanding of evolution in Amaryllidaceae.
Abstract: Scadoxus multiflorus Martyn, 1795 is an ornamental plant with brilliantly colored flowers. Even though its chromosomes are rather large, there is no karyotype description reported so far. Therefore, conventional and molecular cytogenetic studies including fluorescence in situ hybridization (FISH) with 45S and 5S rDNA, and human telomere sequence (TTAGGG)n probes (Arabidopsis-type telomere probes yielded negative results) were carried out. The chromosome number is as reported previously, 2n = 18. The nine chromosome pairs include two large submetacentric, five large acrocentric, one medium acrocentric, two small metacentric and eight small submetacentric chromosomes. Hybridization sites of the 45S rDNA signals were on the short arm ends of chromosomes #1, #3 and #8, while 5S rDNA signals appeared on the long arm of chromosome 3, in one homologue as a double signal. The telomere signals were restricted to all chromosome ends. Three chromosome pairs could be newly identified, chromosome pair 3 by 5S rDNA and chromosomes #1, #3 and #8 by 45S rDNA loci. In addition to new information about rDNA locations we show that the ends of Scadoxus multiflorus chromosomes harbor human instead of Arabidopsis-type telomere sequences. Overall, the Scadoxus multiflorus karyotype presents chromosomal heteromorphy concerning size, shape and 45S and 5S rDNA positioning. As Scadoxus Rafinesque, 1838 and related species are poorly studied on chromosomal level the here presented data is important for better understanding of evolution in Amaryllidaceae.
12 citations
1 Jan 2013
TL;DR: In this paper, the authors investigated and compared Malva rotundifolia, Hibiscus micranthus, Scadoxus multiflorus and Delonix regia extracts obtained in ultrasonic condition with different water/methanol and water/ ethanol extraction mixture acidified with 0.1% HCl.
Abstract: The aim of this study was to investigate and compare Malva rotundifolia, Hibiscus micranthus, Scadoxus multiflorus and Delonix regia extracts obtained in ultrasonic condition with different water/methanol and water/ ethanol extraction mixture acidified with 0.1% HCl. The extracts were analyzed for monomeric anthocyanins contents. The highest anthocyanin content was obtained from Malva rotundifolia (5372.l mg/l) followed by Scadoxus multiflorus, Hibiscus micranthus and Delonix regia (3787.86, 1659.4 and 1394.36 mg/l respectively). Methanol alcohol gave the highest anthocyanin content (3503.43 mg/l) as compared with ethanol (2603.81
7 citations
TL;DR: The quailquantitative analysis revealed that the karyotype of A. sativum and S. multiflorus belonged to category 1A and 3C respectively indicating only the degree of asymmetry, and the genetic distance between these two species is clearly visible in the bi-dimensional scattered plot from the derived MCA and CVCL data.
Abstract: The present investigation has been focussed on the inter-chromosomal and intra-chromosomal asymmetry data of Allium sativum and Scadoxus multiflorus of Amaryllidaceae using quali-quantitative and quantitative methods. The quail-quantitative analysis is strictly ratio based and it revealed that the karyotype of A. sativum and S. multiflorus belonged to category 1A and 3C respectively indicating only the degree of asymmetry. The coefficient of variation of chromosome length (CVCL) and the mean centromeric asymmetry (MCA) were the estimators of quantitative analysis and the data showed that the inter- and intra-chromosomal asymmetry were comparatively high in S. multiflorus than that of A. sativum. Further, the genetic distance between these two species is clearly visible in the bi-dimensional scattered plot from the derived MCA and CVCL data.
4 citations
Journal Article•
TL;DR: An Indian lily moth Polytela gloriosae (Fab.) (Lepidoptera : Noctuidae) is a defoliator of pink lily Zephyranthus grandiflora,yellow l Lily Zephyrs citrina and Foot ball lily Scadoxus multiflorus in Kolhapur, India.
Abstract: Indian lily moth Polytela gloriosae (Fab.) (Lepidoptera : Noctuidae) is a defoliator of pink lily Zephyranthus grandiflora,yellow lily Zephyranthus citrina and Foot ball lily Scadoxus multiflorus in Kolhapur, India. Under laboratory conditions (27± 1 o C, 75-80% R.H. & 12 hr photoperiod) S. multiflorus completed its life cycle from egg to adult within 17 days. Its incidence was high in the months July, August and September and completed 3 generations in the gardens on S. multiflorus. The adult longevity of females averaged 6.8 days, oviposition days 3 days and progeny production 84.30 individuals with average sex ratio (male : female) 1:1.11. The first adult mortality was noted on 5 th day. The maximum mean progeny production per day 'mx' was 18.8 on the 3 rd day. The intrinsic rate of increase was found to be 0.194 per female per day and population multiplied 44.20 times in mean generation time 'T' of 19.52 days. The pest can be controlled by spraying the crop with 0.03% malathion or 0.03% Azadirachtin. A fungus Metarrhizium sp. and a tachinid fly were found suppressing the pest population in the field.
3 citations
TL;DR: In this article, the authors examined the impact of rainfall changes on flowering trends of Pancratium tenuifolium Hochst and Scadoxus multiflorus (Martyn) Raf.
Abstract: Drought-adapted geophytes are responding to the effects of climate change in arid and semi-arid environments. In this study, herbarium and historical rainfall data were used to examine the impact of rainfall changes on flowering trends of Pancratium tenuifolium Hochst. ex A.Rich and Scadoxus multiflorus (Martyn) Raf. subsp. multiflorus. Flowering was delayed by approximately 7 days per decade for P. tenuifolium during the period 1930 to 2018 and by approximately 14 days per decade for S. multiflorus subsp. multiflorus during the period 1924 to 2008. Scadoxus multiflorus subsp. multiflorus delayed the day of flowering by approximately 0.3 days per millimetre increase of rainfall, with Pancratium tenuifolium showing a non-significant response to summer rainfall during the same period. Overall, a linear mixed-effects model revealed that the day of flowering was delayed by approximately 8 days per degree rise in latitude and advanced by approximately 9 days per degree rise in longitude. Additionally, summer rainfall had significant effects on the day of flowering with a 1-mm increase in summer rainfall delaying the day of flowering by approximately 0.16 days. These changes in flowering times may ultimately alter the distribution of geophytes in Namibia.
2 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 2 |
| 2019 | 1 |
| 2016 | 1 |
| 2015 | 1 |
| 2013 | 1 |
| 2004 | 1 |