Results 31 to 40 of about 1,686 (179)

Cattle and bison grazing decreases monarch egg and larval abundance in the Central United States

Ecosphere, Volume 17, Issue 8, August 2026.
Abstract Monarch butterflies have experienced massive population declines and have been proposed to be listed as threatened under the U.S. Endangered Species Act. Milkweeds (Asclepias spp.) are the sole host plant for monarch larvae, and milkweed abundance has dramatically declined in the past 25 years due to increased usage of herbicides and the ...
Grace Thomas, Christopher J. Helzer, Jeff Taylor, Joshua D. Wiese, Timothy L. Dickson   +4 more
wiley   +1 more source

Investigating the Antidiabetic Effects of Calotropis procera: Preclinical Assessment

Food Science &Nutrition, Volume 14, Issue 8, August 2026.
Calotropis Procera In vitro/Diabetic rodent model Improved β‐cell function, reduced hepatic gluconeogenesis antioxidant activity. ABSTRACT Diabetes mellitus (DM) is a metabolic disease characterized by persistent hyperglycemia, oxidative stress, and inflammation, often leading to severe complications.
Yu‐Cheng Kuo, Musa I. Ajibola, Halimat Y. Lukman, Bashir Lawal, Lung‐Ching Chen, Sheng‐Liang Huang, Olawale David Ajayi, Sunday Amos Onikanni, Saheed Sabiu, Leandro Miranda‐Alves, Hsu‐Shan Huang   +10 more
wiley   +1 more source

Parasitoidism by Brachymeria pandora (Hymenoptera: Chalcididae) in Pupae of Danaus erippus (Lepidoptera: Nymphalidae) in an Urban Savanna Area

Austral Entomology, Volume 65, Issue 3, August 2026.
ABSTRACT The Chalcididae comprises parasitoid wasps that attack various invertebrate groups. Within the family, some Brachymeria species specialises in infecting pupae of Lepidoptera. Here, we quantitatively describe the relationship between Brachymeria pandora and the Southern Monarch butterfly, Danaus erippus, in urban areas of Cuiabá, Mato Grosso ...
Wenrique Verza, Alan Eriksson
wiley   +1 more source

Calotropis poisoning with severe cardiac toxicity A case report

Journal of Family Medicine and Primary Care, 2020
Calotropis is a widely prevalent plant in the Indian Subcontinent. The extract and various parts of the plant are used by traditional healers for treating miscellaneous diseases.
Ramya Iyadurai, Karthik Gunasekaran, Arun Jose, Kishore Pitchaimuthu   +3 more
doaj   +1 more source

Mycorrhizae Alter Toxin Sequestration and Performance of Two Specialist Herbivores

Frontiers in Ecology and Evolution, 2018
Multitrophic species interactions are shaped by both top-down and bottom-up factors. Belowground symbionts of plants, such as arbuscular mycorrhizal fungi (AMF), can alter the strength of these forces by altering plant phenotype.
Amanda R. Meier, Mark D. Hunter
doaj   +1 more source

A draft genome and transcriptome of common milkweed (Asclepias syriaca) as resources for evolutionary, ecological, and molecular studies in milkweeds and Apocynaceae [PDF]

PeerJ, 2019
Milkweeds (Asclepias) are used in wide-ranging studies including floral development, pollination biology, plant-insect interactions and co-evolution, secondary metabolite chemistry, and rapid diversification.
Kevin Weitemier, Shannon C.K. Straub, Mark Fishbein, C. Donovan Bailey, Richard C. Cronn, Aaron Liston   +5 more
doaj   +2 more sources

Cattle foraging on milkweed: Intra‐seasonal herbivory shifts and implications for monarch butterfly conservation

Ecosphere, Volume 17, Issue 6, June 2026.
Abstract Managing milkweed (Asclepias spp.) is of high conservation concern due to its association with monarch butterflies (Danaus plexippus L.), which are proposed for listing under the Endangered Species Act. To counteract monarch declines, conservation goals aim to establish ≥1.6 billion nonagricultural milkweed stems within the Midwestern United ...
Ellysa R. Johnson, Jason P. Harmon, Torre J. Hovick, Travis Seaborn, Katherine C. Kral‐O'Brien, Kevin K. Sedivec   +5 more
wiley   +1 more source

In silico prediction of MMP-2 pathway related to anticancer effects of Sterculia foetida L. [PDF]

Journal of Pharmacy & Pharmacognosy Research
Context: Matrix metalloproteinase-2 (MMP-2) is a protein found in tumor cells and is important in breast cancer spread and development. Natural substances like quercetin, cardenolide, epicatechin, coumarin, and anthraquinone have been studied for their ...
Aiko Zavira Permana, Naura Luviezka Choirunnisa, Debora Chris Kezia, Edwin Widodo, Happy Kurnia Permatasari, Hikmawan Wahyu Sulistomo, Eviana Nurahmawati, Nik Ahmad N. Nik Malek, Agustina Tri Endharti, Sofy Permana   +9 more
doaj   +1 more source

Genetic Variation in Chemical Defence Affects Protection of an Herbivorous Insect Against Predation

Molecular Ecology, Volume 35, Issue 9, May 2026.
ABSTRACT Genetic variation contributes to intraspecific differences in the chemical defence in many insect species, yet the underlying genetic mechanisms remain poorly understood. The horseradish flea beetle, Phyllotreta armoraciae, sequesters glucosinolates from its horseradish host plant and activates them using endogenous myrosinase enzymes.
Johannes Körnig, Kris Ortizo, Christian Woehle, Robert Greenhalgh, Holger Schielzeth, Bruno Huettel, David G. Heckel, M. Denise Dearing, Martin Kaltenpoth, Franziska Beran   +9 more
wiley   +1 more source

Optimizing Growth Conditions for Digoxin Production in Digitalis lanata Ehrh

World Journal of Traditional Chinese Medicine, 2016
Objective: Digoxin is a therapeutic cardenolide widely used to treat various heart conditions such as atrial flutter, atrial fibrillation and heart failure in both Western as well as Chinese medicine. Digoxin is extracted from cultivated Digitalis lanata
Herman A. van Wietmarschen, Hansjörg Hagels, Ron Peters, Jolanda Heistek, Jan van der Greef, Mei Wang   +5 more
doaj   +1 more source