Annette Becker results 35
· Newest (Page 1/2, per page 25)
Author: Annette Becker ×Clear All Filters
Search Results
Background and aims Agricultural soils in semi-arid sub-Saharan Africa are often low in soil organic carbon (SOC) and nitrogen (N), making them vulnerable to degradation and threatening food security of smallholder farmers. Conservation agriculture practices such as mulching are promoted as climate-resilient strategies to improve soil fertility, but it remains unclear whether these practices improve soil biogeochemical propert...
Combined application of biochar and silicate rock powder might have synergistic effects on carbon dioxide removal and soil improvement. However, it remains unknown how their combination affects mineralization and stabilization of soil organic carbon (SOC). We compared pure 13 C-labeled wheat-straw biochar, pure basanite rock powder, their co-application, and rock-enhanced biochar from co-pyrolysis of wheat and basanite. All am...
The Toxicology Investigators Consortium 2024 Annual ReportNARA Subscribed
Climate change and rising tropospheric ozone concentration are impacting ecosystems in various ways and can influence the volatile-mediated interactions between insects and their host plants. In this study, individuals of the psyllid species Cacopsylla pyri and C. pyrisuga as well as their host plant Pyrus communis were exposed to elevated but naturally occurring ozone concentrations. The effects on the olfactory perception of...
Herbivorous insects need to cope with changing host plant biochemistry caused by abiotic and biotic impacts, to meet their dietary requirements. Larvae of the multivoltine European grapevine moth Lobesia botrana , one of the main insect pests in viticulture, feed on both flowers and berries. The nutritional value and defence compounds of these organs are changing with plant phenology and are affected by climate change which ma...
Key message We link key aspects of land plant reproductive evolution and detail how successive molecular changes leading to novel tissues and organs require co-evolution of communication systems between tissues. Abstract The transition of water-dependent reproduction of algae to mechanisms with very limited water dependence in many land plant lineages allowed plants to colonize diverse terrestrial environments, leading to the...
Genome of Argania spinosa L.: insights into oil production and the tocopherol biosynthesis pathwayNARA Subscribed
Argan ( Argania spinosa L.) is a highly valued tree for its multiple uses as food and feed and for being linked to a broad range of benefits of pharmaceutical and cosmetic relevance. This multipurpose resource is becoming increasingly overused, which may disrupt the whole ecosystem’s sustainability. Due to the high socio-economic status of this tree, research interventions are needed to reverse the forest regressive trend, res...
The Toxicology Investigators Consortium 2023 Annual ReportNARA Subscribed
Aims Inoculation with climate-adapted rhizobia is able to increase legume productivity in drought-prone regions of Sub-Saharan Africa. Enhanced nodulation might additionally affect plant-soil interactions and control rhizosphere carbon (C) and nitrogen (N) pools. Methods We investigated inoculation effects on nodulation and biological N 2 fixation (BNF) of Vigna unguiculata and consequent effects on C and N pools in two Namibi...
The Toxicology Investigators Consortium 2022 Annual ReportNARA Subscribed
Climate change can affect biological pest control by altering trophic interactions. Elevated carbon dioxide (CO 2 ) concentrations can reduce host plant quality and, in turn, alter herbivore and natural enemy preference and performance. Using the Geisenheim VineyardFACE (free-air carbon dioxide enrichment) facility, we studied plant- and herbivore-mediated bottom-up effects of elevated CO 2 concentration on the European grapev...
Altered volatile emission of pear trees under elevated atmospheric CO2 levels has no relevance to pear psyllid host choiceNARA Subscribed
The impact of climate change drivers on cultivated plants and pest insects has come into research focus. One of the most significant drivers is atmospheric carbon dioxide, which is converted into primary plant metabolites by photosynthesis. Increased atmospheric CO 2 concentrations therefore affect plant chemistry. The chemical composition of non-volatile and volatile organic compounds of plants is used by insects to locate an...
Towards a genetic model organism: an efficient method for stable genetic transformation of Eschscholzia californica (Ranunculales)NARA Subscribed
California poppy ( Eschscholzia californica ) is a member of the Ranunculales, the sister order to all other eudicots and as such in a phylogenetically highly informative position. Ranunculales are known for their diverse floral morphologies and biosynthesis of many pharmaceutically relevant alkaloids. E. californica it is widely used as model system to study the conservation of flower developmental control genes. However, wit...
Purpose Research shows that psychosocial factors play a significant role in the emergence of musculoskeletal complaints (MSC). The aim of this study was to determine the long-term effects on unspecific MSC by a combined physiotherapy and coaching intervention compared to physiotherapy alone. The coaching intervention focussed on enabling better strategies for coping with work stressors. Methods The participants of a previous r...