Results 41 to 50 of about 7,936 (190)

Uji Toksisitas Ekstrak methanol Beberapa Bagian Jaringan Tumbuhan Bayur (Pterospermum subpeltatum C.B. Rob) [PDF]

open access: yes, 2009
Abstrak: Tumbuhan bayur (Pterospermum subpeltatum C.B. Rob) adalah salah satu spesies dari genus Pterospermum yang selama ini belum pernah diteliti kandungan metabolit sekundernya. Namun beberapa spesies lain dari genus ini secara turun-temurun digunakan
Hariani, Nunuk   +3 more
core   +1 more source

Composition and Host-Use Patterns of a Scarab Beetle (Coleoptera: Scarabaeidae) Community Inhabiting the Canopy of a Lowland Tropical Rainforest in Southern Venezuela [PDF]

open access: yes, 2019
The adult scarab beetle fauna of the canopy in a lowland tropical rainforest in southern Venezuela was observed and collected by means of a 42 m-tall tower crane for a complete year.
Kirmse, Susan, Ratcliffe, Brett C.
core   +2 more sources

Revision of the South African endemic bee genus Redivivoides Michener, 1981 (Hymenoptera: Apoidea: Melittidae) [PDF]

open access: yes, 2012
The South African endemic bee genus Redivivoides Michener, 1981 is revised and redefined. The genus comprises seven species, six of which are described here as new: Redivivoides capensis sp. nov. ♀♂, R. eardleyi sp. nov. ♀, R. kamieskroonensis sp. nov. ♀,
Kuhlmann, Michael
core   +5 more sources

Angiosperm pollen grains from the Cuayuca Formation (Late Eocene to Early Oligocene), Puebla, Mexico [PDF]

open access: yes, 2015
Systematic descriptions and illustrations of the best preserved angiosperm pollen grains (Monocotyledonae or Liliopsida: n= 7 and Dicotyledonae or Magnoliopsida: n= 41) recovered from Cuayuca Formation (late Eocene-early Oligocene), Puebla State ...
Martínez Hernández, Enrique   +2 more
core   +1 more source

Jumping plant-lice of the Paurocephalinae (Insecta, Hemiptera, Psylloidea): systematics and phylogeny [PDF]

open access: yes, 2003
Much confusion exists with respect to the content and definition of the psyUid subfamily Paurocephalinae. Based on a cladistic analysis of 22 morphological characters (16 adult and 6 larval), the subfamily is redefined to comprise the following five ...
Burckhardt, Daniel, Mifsud, David
core  

DNA Barcoding Reveals Cryptic Diversity and Informs Conservation Priorities in Chinese Firmiana Species (Malvaceae) Using Genome Skimming Data DNA条形码揭示中国梧桐属 (锦葵科) 隐存多样性及保护优先级:来自基因组浅层测序数据的证据

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 569-583, December 2025.
Accurate species identification is critical for conserving endangered Firmiana trees in China. However, morphological similarities among closely related Firmiana species complicate its taxonomic identification. We conducted genome skimming on 62 samples representing all 10 Chinese species and discovered nrITS as the optimal DNA barcode, achieving 100 ...
Li‐Jun Yan   +8 more
wiley   +1 more source

Pólen das plantas do nordeste setentrional do Brasil III: Sterculiaceae

open access: yesActa Botânica Brasílica, 1989
Nesta parte do catálogo das plantas do nordeste setentrional do Brasil, foram estudadas 8 espécies da família Sterculiaceae. Os grãos apresentam características morfológicas relacionadas com os gêneros.
M. M. Barros de Miranda   +1 more
doaj   +1 more source

Shedding Light on Shining Leaf Chafers: Rutelinae MacLeay, 1819 (Coleoptera, Scarabaeoidea, Scarabaeidae) as a Neglected Group of Pollinators

open access: yesJournal of Applied Entomology, Volume 149, Issue 10, Page 1584-1599, December 2025.
ABSTRACT The interactions between insects and angiosperms date back to millions of years ago. Among the groups of pollinating animals, it is estimated that insects are responsible for pollinating more than 70% of angiosperms. Coleoptera is one of the most studied insect groups for pollination.
André da Silva Ferreira   +6 more
wiley   +1 more source

Composition of tree species in Onigambari Forest Reserve, Oyo State, Nigeria

open access: yesJournal of Applied Sciences and Environmental Management, 2020
The tree composition of Onigambari Forest Reserve in Oyo State was evaluated by laying out a plot size of 50 x 50 m2 resulting to four plots per hectare. 104 and 93 stems per hectare were recorded.
N.O. Haastrup   +8 more
doaj   +1 more source

Preparation, Structure, and Bioactivities of Medicinal and Edible Homologous Plant Polysaccharides: A Review

open access: yesFood Science &Nutrition, Volume 13, Issue 8, August 2025.
This article reviews the research progress of medicinal and edible homologous plant polysaccharides (MEHPPs). It introduces their extraction and purification methods, expounds on structural characterization techniques, and elaborates on various biological activities and their mechanisms, providing a basis for the development of drugs and health ...
Mengnan Chen   +3 more
wiley   +1 more source

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