Results 21 to 30 of about 1,202 (112)
G-fibers and Florin ring-like structures in Dioon (Zamiaceae)
Botanical Sciences, 2016 Cuticle information and epidermal characters have great potential in systematic studies. However, micromorphology and anatomical studies on cycads are relatively scarce in comparison to similar studies on other gymnosperms.
Andrew P. Vovides, Sonia Galicia
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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 +3 more
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Phylogenomics and coalescent analyses resolve extant seed plant relationships. [PDF]
PLoS ONE, 2013 The extant seed plants include more than 260,000 species that belong to five main lineages: angiosperms, conifers, cycads, Ginkgo, and gnetophytes. Despite tremendous effort using molecular data, phylogenetic relationships among these five lineages ...
Zhenxiang Xi +2 more
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Perspectives on Endosymbiosis in Coralloid Roots: Association of Cycads and Cyanobacteria
Frontiers in Microbiology, 2019 Past endosymbiotic events allowed photosynthetic organisms to flourish and evolve in terrestrial areas. The precursor of chloroplasts was an ancient photosynthetic cyanobacterium.
Aimee Caye G. Chang +5 more
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Frontiers in Plant Science, 2021 Coevolution between plants and insects is thought to be responsible for generating biodiversity. Extensive research has focused largely on antagonistic herbivorous relationships, but mutualistic pollination systems also likely contribute to ...
Shayla Salzman +6 more
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Early evolutionary history of the seed
Biological Reviews, EarlyView.ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman +2 more
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Children &Society, EarlyView.Abstract This article explores the ways in which ‘forest school’, an educational approach where children engage in creative and play based activities in a ‘natural’ environment, can contribute towards Sustainable Development Goal 15 (SDG 15) by promoting sustainable use of terrestrial ecosystems and by helping address biodiversity loss. Drawing on data
Hannah Hogarth
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Diversity, 2023 Cycads are the most threatened group in the plant kingdom. Fire is identified as one of the major factors heightening cycad extinction risk. However, compared to South American cycads, we know little about how fire negatively affects the demography of ...
Memory N. Sigasa +4 more
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Cycad Aulacaspis Scale, a Newly Introduced Insect Pest in Indonesia
Hayati Journal of Biosciences, 2012 Cycad aulacaspis scale (Aulacaspis yasumatsui Takagi (Hemiptera: Diaspididae)) is native to Thailand and Vietnam. Since the early 1990s it has been spreading around the world due to the trade in cycad plants for ornamental use.
NATALIA VON ELLENRIEDER +4 more
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Informing spatial conservation prioritization with species’ traits
Conservation Biology, EarlyView.Abstract New Guinea, the most botanically diverse island on the planet, is the location for one of the boldest conservation initiatives. The Manokwari Declaration aims to achieve 70% conservation designation for the Bird's Head Peninsula. This is 40% higher than the 2022 Global Biodiversity Framework target.
Liam A. Trethowan +27 more
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