Results 41 to 50 of about 2,558 (207)

Nuclear ribosomal ITS functional paralogs resolve the phylogenetic relationships of a late-Miocene radiation cycad Cycas (Cycadaceae). [PDF]

PLoS ONE, 2015
Cycas is the most widespread and diverse genus among the ancient cycads, but the extant species could be the product of late Miocene rapid radiations.
Long-Qian Xiao, Michael Möller
doaj   +1 more source

The Cycad Genus Cycas May Have Diversified From Indochina and Occupied Its Current Ranges Through Vicariance and Dispersal Events

Frontiers in Ecology and Evolution, 2020
Biogeographically, cycads were once widely distributed but the extant cycads are restricted to tropical and subtropical regions. They originated ∼ 300 Ma and re-diversified recently around 12 Ma, with the genus Cycas being the most rapidly diversified ...
Ledile T. Mankga, Kowiyou Yessoufou, Thendo Mugwena, Munyaradzi Chitakira   +3 more
doaj   +1 more source

Cycas sancti-lasallei (Cycadaceae), a new species from the Philippines [PDF]

, 2012
Cycas sancti-lasallei, a new species from Mindanao Island, the Philippines is described and illustrated. It can be distinguished from other Cycas species in the Philippines in having long leaves, undulating leaflets, and megasporophyll lamina with a semi-
Agoo, E.M.G., Madulid, D.A.
core   +3 more sources

Differences in lipid homeostasis and membrane lipid unsaturation confer differential tolerance to low temperatures in two Cycas species

BMC Plant Biology, 2021
Background C. panzhihuaensis is more tolerant to freezing than C. bifida but the mechanisms underlying the different freezing tolerance are unclear. Photosynthesis is one of the most temperature-sensitive processes.
Yanling Zheng, Yongqiong Yang, Meng Wang, Shijun Hu, Jianrong Wu, Zhixiang Yu   +5 more
doaj   +1 more source

Plants of the Gymnosperms (Gymnospermae) in the Greenhouse of the Polar-Alpine Botanical Garden

Hortus Botanicus, 2021
The article presents the results of the gymnosperm plant cultivation in the greenhouses of the Polar-Alpine Botanical Garden-Institute named after ON.
Viracheva Ljubov Leonidovna, Ivanova Ljubov Andreevna   +1 more
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Chemical Constituents of Cycas aenigma [PDF]

Journal of Applied Pharmaceutical Science, 2015
La investigación química de Cycas aenigma, una planta endémica de Filipinas, condujo al aislamiento de un neolignano raro, 2-[2-hidroxi-5-(3-hidroxipropil)-3-metoxifenil]-1-(4-hidroxi-3-metoxifenil) propano-1,3diol (1), pinoresinol (2) y alcoholes grasos (3) de las valvas; y trigliceroles (4), y una mezcla de β-sitosterol (5a) y estigmasterol (5b) del ...
Vincent Antonio S. Ng, Esperanza Maribel G. Agoo, Chien‐Chang Shen, Consolacion Y. Ragasa   +3 more
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Biflavonoids from Cycas beddomei

Chemical and Pharmaceutical Bulletin, 2005
Chemical investigation on the constituents of the cones of Cycas beddomei has resulted in the isolation of a new biflavonoid, 2,3-dihydro-4'''-O-methyl amentoflavone, along with 2,3,2'',3''-tetrahydro hinokiflavone, 2,3,2'',3''-tetrahydro amentoflavone, 2,3-dihydro amentoflavone. The last two compounds were not reported earlier from this plant.
Das, Biswanath, Mahender, Gurram, Koteswara Rao, Yerra, Prabhakar, Anabathula, Jagadeesh, Bharatam   +4 more
openaire   +3 more sources

Characterization of the complete chloroplast genome of Cycas hongheensis (Cycadaceae), an endemic species in the red river region of China

Mitochondrial DNA. Part B. Resources, 2021
In this study, we determined the complete chloroplast genome of Cycas hongheensis (Cycadaceae), one of the first-class protected plants in China. The chloroplast genome is 162,048 bp in length with 133 genes, including 87 protein-coding genes, eight ...
Li-Xin Wu, Yue-Hua Wang, Xun Gong
doaj   +1 more source

Species delimitation of the Cycas segmentifida complex (Cycadaceae) resolved by phylogenetic and distance analyses of molecular data

Frontiers in Plant Science, 2016
The Cycas segmentifida complex consists of eight species whose distributions overlap in a narrow region in Southwest China. These eight taxa are also morphologically similar and are difficult to be distinguished.
Xiuyan eFeng, Xiuyan eFeng, Jian eLiu, Jian eLiu, Xun eGong   +4 more
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Distribution patterns of suitable habitat for Cycas tanqingii in the China-Laos-Vietnam region under the interaction of climate change and pest factors

Ecological Indicators
The cycad Cycas tanqingii is an endangered species susceptible to climate change and pest infestations. Global warming is expected to shorten the development cycles of insect pests, prolong periods of damage, increase population sizes and generational ...
Jia Li, Churui Li, Cairong Yue, Wen Wang, Hongbin Luo, Lanzhong Zhang, Ting Chen, Jian Shen, Zihan Teng   +8 more
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