Results 11 to 20 of about 520 (124)

Studies on Medicago lupulina saponins. 1. Isolation and identification of sapogenins from M. lupulina tops

open access: yesActa Societatis Botanicorum Poloniae, 2014
Saponins from <em>M. lupulina</em> tops were investigated for the first time. Eight aglycones were found in the acid hydrolysates of saponins. All of the aglycones were isolated. On the basis of chromatography, mass spectrometry and infrared spectrometry the aglycanes were identified as soyasapogenols B, C, D, E, F and medicagenic acid. Two
Piotr M. Górski   +4 more
openaire   +3 more sources

Effects of low‐tech, process‐based restoration on riparian plant communities and soil moisture of streams in the Northern Great Plains (NGP) of the United States

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Process‐based restoration is novel in livestock production systems of the Northern Great Plains (NGP), and limited region‐specific evidence can impede adoption. We investigated the effects of methods such as beaver dam analogs (BDAs) on NGP plant communities.
James A. Bolyard   +2 more
wiley   +1 more source

Biodiversity and soil type modulate the effect of plastic contamination on soil functioning

open access: yesJournal of Applied Ecology, Volume 63, Issue 4, April 2026.
Our findings show that the negative effects of plastic contamination on soil functioning strongly depend on soil type and can be partly alleviated by plant diversity. In sandy soils, diverse plant communities buffered functional losses under plastic stress, whereas in clayey soils the benefits of diversity were suppressed.
María Fernández‐Maquieira   +6 more
wiley   +1 more source

Optimizing seeding ratios of field pea–brown mustard intercrops in Atlantic Canada

open access: yesAgronomy Journal, Volume 118, Issue 2, March/April 2026.
Abstract Intercropping is a promising approach for ecological intensification that can enhance productivity and agroecosystem services. This study evaluated the agroecological performance of field pea (Pisum sativum) and brown mustard (Brassica juncea) intercropping across seeding ratios (0.5×, 1.0×, and 1.5× the recommended rates; 100 seeds m−2 ...
Qianwen Gong   +6 more
wiley   +1 more source

Medicago lupulina (black medick).

open access: yes, 2020
Abstract Medicago lupulina is an annual or short-lived perennial herb with a wide native range across Africa, Asia and Europe. It is a common weed in disturbed areas, wastelands, roadsides, abandoned pastures and forest margins. It is a nitrogen-fixing species cultivated for forage and used as a soil improver; it is also a seed ...
openaire   +1 more source

Urban Microfarms: Hot or Cold Spots for Plants and Soil Biodiversity?

open access: yesEuropean Journal of Soil Science, Volume 77, Issue 2, March–April 2026.
Investigation of soil and plant biodiversity in urban microfarms on the ground and on rooftops. ABSTRACT Urban agriculture plays a key role in urban ecosystems functionality and resilience, and can take many forms: allotment gardens, community garden or urban microfarms.
Sophie Joimel   +9 more
wiley   +1 more source

Medicago lupulina lines with defects in the development of efficient arbuscular mycorrhiza [PDF]

open access: yesEcological genetics, 2018
Background. The work is aimed to solve actual problems in biology of arbuscular mycorrhiza (AM). Currently, a lot of mutants had been obtained in various plant model objects with defects in genes controlling AM development, however, the mechanisms controlling development of effective AM symbiosis are still unclear. Materials and methods.
Andrey P. Yurkov, Lidija M. Jacobi
openaire   +1 more source

Earlier reproductive phenology of restored grasslands

open access: yesRestoration Ecology, Volume 34, Issue 3, March 2026.
Abstract Introduction Plants introduced to degraded ecosystems during restoration efforts often face novel environmental conditions. Consequently, plant functional traits can differ between restored and reference sites, even within the same species. Studies on such intraspecific variation mainly focused on vegetative traits, while the timing of life ...
Franziska M. Willems   +3 more
wiley   +1 more source

Plant‐Pollinator Interactions in Grasslands Established on Arable Land

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
We compared plant‐pollinator networks in newly established and old, permanent grasslands in a Central European agricultural landscape. Newly established grasslands showed higher pollinator visitation frequency and diversity per plant species, especially for solitary bees and syrphids, with a comparable network structure to old grasslands.
Maria Peer   +7 more
wiley   +1 more source

Studies on Medicago lupulina saponins. 2. Isolation, chemical characterization and biological activity of saponins from M. lupulina tops

open access: yesActa Societatis Botanicorum Poloniae, 2014
Two pure saponin fractions from the tops of <em>M. lupulina</em> were isolated and characterized. The fractions named Ma and Ss varied in composition and biological activity. It was shown by TLC that fraction Ma contained 5 components. In the acid hydrolysates of that fraction only one aglycone (medicagenic acid) and 4 sugars: rhamnose ...
Górski, Piotr M.   +4 more
openaire   +4 more sources

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