Results 101 to 110 of about 323,642 (310)

Tumidulin, a Lichen Secondary Metabolite, Decreases the Stemness Potential of Colorectal Cancer Cells

open access: yesMolecules, 2018
Lichens produce various unique chemicals that are used in the pharmaceutical industry. To screen for novel lichen secondary metabolites that inhibit the stemness potential of colorectal cancer cells, we tested acetone extracts of 11 lichen samples ...
Yi Yang   +11 more
doaj   +1 more source

Community dynamics of lignicolous lichens on standing deadwood in a 275‐year chronosequence

open access: yesOikos, EarlyView.
Dead trees provide discrete habitat patches in which patch quality changes gradually due to wood decomposition. Although in most cases these patches persist for not more than a few decades, in some ecosystems deadwood decomposition and the consequent change in habitat patch quality can be a centuries‐long process, potentially leading to dynamics of ...
Aleksi Nirhamo   +4 more
wiley   +1 more source

Uncovering Hidden Lineages in Korean Foliicolous Lichens (Strigulaceae, Strigulales): Discovery of a New Cryptic Genus and Species

open access: yesMycobiology
Foliicolous or leaf-dwelling lichens are mostly found in (sub-)tropical rainforests; due to their sensibility to environmental changes, they may serve as biological indicators for rainforest ecosystems.
Jung-Jae Woo   +4 more
doaj   +1 more source

Symbiosis constraints: Strong mycobiont control limits nutrient response in lichens

open access: yesEcology and Evolution, 2017
Symbioses such as lichens are potentially threatened by drastic environmental changes. We used the lichen Peltigera aphthosa—a symbiosis between a fungus (mycobiont), a green alga (Coccomyxa sp.), and N2‐fixing cyanobacteria (Nostoc sp.)—as a model ...
Kristin Palmqvist   +2 more
doaj   +1 more source

Plant and insect functional traits influence herbivore performance under climate change

open access: yesOikos, EarlyView.
Climate change is expected to disrupt many trophic interactions, including those between insect herbivores and their host plants, which could have detrimental effects at the ecosystem level. However, the response of insect herbivory to climate change can vary widely across species, and an understanding of the mechanisms underlying this variation is ...
Jessica M. Guezen, Madhur Anand
wiley   +1 more source

Unraveling the Photoprotective Response of Lichenized and Free-Living Green Algae (Trebouxiophyceae, Chlorophyta) to Photochilling Stress

open access: yesFrontiers in Plant Science, 2017
Lichens and free-living terrestrial algae are widespread across many habitats and develop successfully in ecosystems where a cold winter limits survival.
Fátima Míguez   +4 more
doaj   +1 more source

Examining the Effects of Urbanization on Soil Characteristics in Portland, Oregon\u27s Forest Park [PDF]

open access: yes, 2016
Studies by Dr. Nancy Broshot in Forest Park, an urban forest in Portland, Oregon, have shown high tree mortality and low concomitant recruitment. Lichen surveys conducted in 2013 revealed a shift in the lichen community to one typified by nitrogen ...
Hanson, Wes L.
core   +1 more source

Investigating conservation performance payments alongside human–wildlife conflicts: The Swedish lynx and wolverine protection policies

open access: yesPeople and Nature, EarlyView.
Abstract Conservation performance payments are becoming an increasingly popular instrument to tackle human–wildlife conflicts. In Sweden, Sámi communities practicing reindeer husbandry receive performance payments as compensation for reindeer losses caused by lynxes and wolverines.
Josef Kaiser   +3 more
wiley   +1 more source

Lichens of the surrounding areas of Termas of Chillán and Las Trancas, Bío-Bío Region, Chile

open access: yesGayana: Botanica, 2016
The aim of this study was to contribute to the knowledge of the richness and distribution of the lichens in the Bío-Bío Region. A total of 120 samples were collected in the surroundings of Termas de Chillán and Las Trancas, Bio-Bio region.
Iris Pereira   +4 more
doaj  

The distribution of epiphytic bryophyte and lichen species in relation to phorophyte characters in Latvian natural old-growth broad leaved forests [PDF]

open access: yes, 2008
Epiphytic bryophyte and lichen species distribution was studied in representative natural old-growth broad leaved forests in Latvia. Overall 120 epiphytic bryophyte and lichen species were found in 13 forest stands.
Brūmelis, Guntis   +2 more
core   +1 more source

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