Results 61 to 70 of about 11,383 (150)

Offspring performance does not explain oviposition preference in the leafminer Stigmella sorbi (Lepidoptera: Nepticulidae): a tri‐trophic perspective

open access: yesInsect Science, EarlyView.
We studied oviposition site selection in a leaf‐mining moth (Stigmella sorbi) on rowan trees (Sorbus aucuparia) in northwestern Russia, assessing larval performance across different shoot types, leaf positions, and leaflets. Larval survival was highest on long vegetative shoots, yet females showed no preference for these optimal sites.
Mikhail V. Kozlov, Vitali Zverev
wiley   +1 more source

Studies on the Constituents of Hypericum Species. VI Chemical Structures of Arylglycerol Glycosides from Hypericum erectum THUNB [PDF]

open access: yes, 2006
L-threo-Guaiacylglycerol 8-O-β-D-glucopyranoside, D-threo-syringoylglycerol 8-O-β-D-glucopyranoside and (7S, 8S) -4-hydroxy-3-methoxy-7, 8-(2', 1'-O-β-D-glucopyranosyl)-phenylpropanetriol were isolated from Hypericum erectum THUNB.
キクチ, マサオ   +8 more
core  

Effect of hydroalcoholic extract of Hypericum perforatum on selected traditional and novel biochemical factors of cardiovascular diseases and atherosclerotic lesions in hypercholesterolemic rabbits: A comparison between the extract and lovastatin

open access: yesJournal of Pharmacy and Bioallied Sciences, 2012
Context: Evidence suggests that diets with high contents of cholesterol will increase serum lipoproteins and apolipoproteins, thereby increase risk of atherosclerosis.
Sedigheh Asgary   +5 more
doaj   +1 more source

Prioritizing site groups for intrinsic biodiversity assets using complementarity and not just rarity

open access: yesConservation Science and Practice, EarlyView.
Conservation practitioners rightfully focus on at‐risk species when valuing biodiversity assets and prioritizing spatial units. We compared and combined numbers of at‐risk species with four other community metrics using surveys of vascular plants at wetlands in a preserve network in Illinois, USA.
Suneeti K. Jog, Jason T. Bried
wiley   +1 more source

Polycyclic Polyprenylated Acylphloroglucinol Derivatives from Hypericum acmosepalum

open access: yesMolecules, 2018
Hypericum acmosepalum belongs to the Hypericum genus of the Guttiferae family. The characteristic components in Hypericum are mainly a series of polycyclic polyprenylated acylphloroglucinols (PPAPs), flavonoids, and xanthones.
Jiao Wang   +4 more
doaj   +1 more source

Secondary metabolites ofHypericum scabrumandHypericum bupleuroides [PDF]

open access: yesPharmaceutical Biology, 2009
The genus Hypericum (Guttiferae) is a source of biologically active secondary metabolites, notably hyperforin, hypericins and various phenolics. In the present study the presence of the phloroglucinol derivative hyperforin, the naphthodianthrones hypericin and pseudohypericin, the phenylpropane chlorogenic acid and the flavonoids such as rutin ...
Ayan, Ali Kemal   +4 more
openaire   +1 more source

Metabarcoding of Pollen Carried by Syrphids Reveals Novel Plant–Pollinator Interactions in a Protected Natural Area and Agricultural Sites

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Using DNA metabarcoding, this study investigates pollen transported by syrphids (Syrphidae) in the Dolomiti Bellunesi National Park and agricultural sites in Northern Italy. The analysis reveals a high diversity of visited plant taxa, including previously undocumented plant–pollinator interactions.
Serena Magagnoli   +6 more
wiley   +1 more source

Hypericum hypericoides

open access: yes, 2019
Pope County, US-AR, UShttps://orc.library.atu.edu/hypericum/1003/thumbnail ...
Mendez, Alejandra
core   +4 more sources

Comparison of hypericum perforatum and placebo in treatment of physical symptoms of premenstrual syndrome [PDF]

open access: yesحیات, 2004
Introduction: A variety of maladies, sometimes disabling, beset many ovulatory women in a recurrent manner during the luteal phase of each ovarian cycle.
Pakgohar M   +4 more
doaj   +2 more sources

Improving Decision‐Making in the Identification of Tephritidae Larvae at Import in the European Union and Key to Third Instar Larvae

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT The Tephritidae family, or true fruit flies, comprises approximately 250 species recognized as economically significant due to their capacity to infest commercial fruits. These pests pose serious threats to both food security and trade, and are considered quarantine pests in areas where they are not yet established. In the European Union (EU),
Andrea Taddei   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy