Results 71 to 80 of about 101,653 (302)

Sustainable rubber production through good latex harvesting practices: stimulation based on clonal latex functional typology and tapping panel management [PDF]

open access: yes, 2013
The purpose of this study was to characterize the long-term behaviour of the rubber tree under different ethephon stimulation treatments and under different panel management strategies.
Doumbia, Amadou   +3 more
core  

Regional Genetic Structure in the Aquatic Macrophyte Ruppia cirrhosa Suggests Dispersal by Waterbirds [PDF]

open access: yes, 2017
The evolutionary history of the genus Ruppia has been shaped by hybridization, polyploidisation and vicariance that have resulted in a problematic taxonomy. Recent studies provided insight into species circumscription, organelle takeover by hybridization,
A Marchioni-Ortu   +71 more
core   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

An overview of tea research in Tanzania - with special reference to the Southern Highlands. [PDF]

open access: yes, 1992
The history of tea development in Tanzania from the early part of this century to the present is summarised. Average yields of made tea from well managed estates in the Mufindi district have increased from around 600 kg ha-1 in the late 1950s to 3000 ...
Burgess, Paul J.   +3 more
core  

Effects of nutrient enrichment on seagrass population dynamics: evidence and synthesis from the biomass-density relationships [PDF]

open access: yes, 2013
The available data from experimental and descriptive studies on seagrass biomass and density responses to nutrient enrichment were analysed to assess the intraspecific mechanisms operating within seagrass populations and whether biomass-density ...
Agawin   +75 more
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Developmentally Programmed Division of Labor in the Aquatic Invader Alternanthera philoxeroides Under Homogeneous Soil Nutrients

open access: yesFrontiers in Plant Science, 2019
Clonal traits can contribute to plant invasiveness, but little is known about the roles of division of labor (a key clonal trait) in homogeneous habitats. The hypothesis tested is that clonal integration allows division of labor and increases the overall
Dao-Guo Xi   +4 more
doaj   +1 more source

Incipient speciation in the rice blast fungus [PDF]

open access: yes, 2015
Emerging fungal diseases of plants represent a growing issue accompanying global environmental changes, and there is tremendous interest in identifying the factors controlling their appearance and spread.
Adreit, Henri   +8 more
core  

Plant clonal morphologies and spatial patterns as self-organized responses to resource-limited environments

open access: yes, 2014
We propose here to interpret and model peculiar plant morphologies (cushions, tussocks) observed in the Andean altiplano as localized structures. Such structures resulting in a patchy, aperiodic aspect of the vegetation cover are hypothesized to self ...
Anthelme, F.   +5 more
core   +2 more sources

A Comparative demography of plants based upon elasticities of vital rates [PDF]

open access: yes, 2004
Elasticities of matrix elements from population projection matrices are commonly used to analyze the relative contributions of different life history transitions (birth, survival, growth) to the finite rate of increase (lambda).
Franco, Miguel, Silvertown, Jonathan
core   +1 more source

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