Results 41 to 50 of about 70,352 (241)

A eubacterial origin for the human tRNA nucleotidyltransferase? [PDF]

open access: yes, 2001
tRNA CCA-termini are generated and maintained by tRNA nucleotidyltransferases. Together with poly(A) polymerases and other enzymes they belong to the nucleotidyltransferase superfamily.
Aebi M.   +12 more
core   +1 more source

Wilting wildflowers and bummed‐out bees: Climate change threatens US state symbols

open access: yesPeople and Nature, EarlyView.
Abstract Species designated as state symbols in the United States carry cultural importance, embody historical heritage and maintain long‐standing linkages to Indigenous traditions. However, they are threatened by climate change and even face the risk of local or global extinction.
Xuezhen Ge   +3 more
wiley   +1 more source

Effects of fertilisers on pulse crop productivity and nitrogen assimilation on acid soil

open access: yesPlant, Soil and Environment, 2019
This research aimed to compare the productivity of three species of pulse plants (Vicia faba L., Pisum sativum L., Lupinus angustifolium L.) in acidic sandy loam soil and to determine the influence of NPK (N0P0K0, N0P27K73, N30P27K73) fertilisers on ...
Liudmila Tripolskaja, Rita Asakaviciute
doaj   +1 more source

Harmonising digitised herbarium data to enhance biodiversity knowledge: Major steps towards an updated checklist for the flora of Greenland

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Herbaria worldwide hold centuries of plant data that are key to understanding and protecting biodiversity; however, even with increased digital access, differences in plant naming systems make it difficult to compare records. We developed a semi‐automated workflow that standardises species names and organises herbaria records from multiple institutions
Brandon Samuel Whitley   +17 more
wiley   +1 more source

Speciation with gene flow

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long   +7 more
wiley   +1 more source

Evaluation of legumes and poultry manure for the early protection of burnt soils Evaluación de leguminosas y gallinaza para la protección temprana de suelos quemados Avaliaçao da utilizaçao de leguminosas e estrume de galináceos na protecção precoce de solos queimados [PDF]

open access: yesSpanish Journal of Soil Science, 2012
<p>Organic amendments combined with the sowing of gramineous grasses are effective for the early protection of burnt soils (BS) but cannot restore soil N status to pre-fire level; this has led to interest in combining their use with N<sub>2 ...
Serafín González Prieto   +2 more
doaj   +1 more source

Introducing Mediterranean Lupins in Lamb Diets: Effects on Carcass Composition, Meat Quality, and Intramuscular Fatty Acid Profile

open access: yesAnimals, 2022
The objective of this preliminary study was to evaluate the effects of partial replacement of soybean meal by lupins on lambs’ diets, on the carcass traits, meat characteristics, and meat fatty acid profile.
Mariana Almeida   +10 more
doaj   +1 more source

Tracing change in the public perception of plants: insights from archives and social media in China

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
As urbanization accelerates, historic gardens serve as vital cultural treasures that offer spiritual and cultural support to the public. This study proposes an innovative approach that merges historical records from the Qing Dynasty with contemporary social media data to explore changes in public perceptions of these gardens.
Dong Xu   +4 more
wiley   +1 more source

Morphological and cytological differences within the species Lupinus luteus L.

open access: yesActa Societatis Botanicorum Poloniae, 2015
The Lupinus luteus L. from five different geographical proveniences were investigated morphologically and cytologically. The plants originating from Palestine differ from the rest in many morphological traits. Cytologically they differ by one chromosomal
T. Kazimierski, M. Kazimierska
doaj   +1 more source

Diverse Prairie Mixtures Stabilize Biomass Yields for Sustainable Aviation Fuel Production

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Meeting global demand for sustainable aviation fuel will require the additional production of vast quantities of plant biomass, which does not compete with food production or degrade sensitive ecosystems. Our multisite experiment shows that sowing diverse native prairie seed mixes—and managing them without intensive inputs—yields a more reliable ...
Craig R. See, Yi Yang, Jacob M. Jungers
wiley   +1 more source

Home - About - Disclaimer - Privacy