Results 51 to 60 of about 8,311 (229)

Fighting their last stand? A global analysis of the distribution and conservation status of gymnosperms [PDF]

, 2015
Aim: Gymnosperms are often described as a marginal and threatened group, members of which tend to be out-competed by angiosperms and which therefore preferentially persist at higher latitudes and elevations.
Bigras, Bond, Bowe, Brodribb, Carlquist, Cernusak, Chaw, Coiffard, Collen, Connor, Coomes, Coomes, Davies, Debreczy, Eckenwalder, eFloras, Enright, Ewers, Farjon, Farjon, Farjon, Feuerer, Fridley, Friedman, Gerstner, Gibson, Hastie, Henschel, Hill, Hillebrand, IUCN, Jablonski, Jenkins, Jones, Kozlowski, Kramer, Kreft, Leslie, Lomolino, Lusk, McCain, McCoy, Meyer, Mittelbach, Motomura, Mutke, Pimm, Purvis, Pärtel, R Core Team, Ran, Robinson, Rohde, Roskov, Rumeu, Rybicki, Safi, SAS Institute Inc, Sax, Soltis, Soltis, Sperry, Sperry, Stoffel, Takhtajan, Tang, Tredici, Visser, Wang, Willert, Willert, Williams, Wood, Wood, Wood, Wright, Zhao   +76 more
core   +2 more sources

Congruence between ocean-dispersal modelling and phylogeography explains recent evolutionary history of Cycas species with buoyant seeds.

New Phytologist, 2021
Ocean currents play a significant role in driving long-distance dispersal (LDD), spatial distribution, and phylogeographic patterns of many organisms. Integrating phylogeographic analyses and mechanistic ocean current modelling can provide novel insights
Jian Liu, A. Lindstrom, Yong‐Sheng Chen, Ran Nathan, X. Gong   +4 more
semanticscholar   +1 more source

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

Composition of Sexual Fluids in Cycas revoluta Ovules During Pollination and Fertilization

The Botanical review, 2022
The composition of fluids that mediate fertilization in cycads is described for the first time. Using tandem mass spectrometry, proteomes of two stages of fluid production, megagametophyte fluid and archegonial chamber fluid production, are compared in ...
P. von Aderkas, S. Little, M. Nepi, M. Guarnieri, M. Antony, T. Takaso   +5 more
semanticscholar   +1 more source

EST analysis in Ginkgo biloba: an assessment of conserved developmental regulators and gymnosperm specific genes [PDF]

, 2005
Background: Ginkgo biloba L. is the only surviving member of one of the oldest living seed plant groups with medicinal, spiritual and horticultural importance worldwide.
Brenner, E. D., Katari, M. S., Stevenson, D. W., Rudd, S. A., Douglas, A. W., Moss, W. N., Twigg, R. W., Runko, S. J., Stellari, G. M., McCombie, W. R., Coruzzi, G. M.   +10 more
core   +1 more source

Nesting behaviour of the Baya Weaver bird, Ploceus philippinus (Ploceidae) and the life-cycle of the Plains Cupid butterfly, Chilades pandava (Lycaenidae) with the red-listed Cycas spheric and C. beddomei (Cycadaceae)

Journal of Threatened Taxa, 2009
The Baya Weaver bird, Ploceus philippinus utilizes the well developed leaves of Cycas sphaerica for nest construction and offspring production. It constructs nest on the leaf tips of this species; the nest material used is exclusively Dendrocalamus ...
A.J.S. Raju
doaj   +1 more source

Leaf hydraulic characteristics of 16 Cycas species

Guangxi Zhiwu
Cycads of China are mainly distributed across diverse habitats in tropical and subtropical regions, with most species are highly endangered. The study of leaf hydraulic traits in cycads species enhances our understanding of their adaptation to the water ...
WU Hongjia1, WANG Yangyan1, YANG Quanguang2, ZHU Shidan1*
doaj   +1 more source

Thermochemical Characterization of Cycas Circinalis Seed Shell to Evaluate their Potential as Biofuel Source

IOP Conference Series: Materials Science and Engineering, 2022
Increased environmental pollution anxieties and quest for high energy demand from renewable energy sources forced to use lignocellulosic biomass to produce Bio-fuels.
V. G S, A. K.
semanticscholar   +1 more source

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
doaj   +1 more source

Toxoplasmocidal and Cytotoxic Activities Guided Isolation and Characterization of an Undescribed Bioflavonoid-di-C-glucoside from Cycas rumphii Miq. Cultivated in Egypt

Plants, 2022
Toxoplasmosis and cancer are serious worldwide diseases, and the available drugs cause serious side effects. Investigation for new alternative therapies from natural sources is now an increasing concern.
Hosam M El-Seadawy, Kamilia A Abo El-Seoud, Mona El-Aasr, Haytham O. Tawfik, Amany E. Ragab   +4 more
semanticscholar   +1 more source