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Eucalyptus grandis Auxin Response Factor 10 (EgrARF10) is associated with the modulation of secondary xylem cell wall chemistryNARA Subscribed
Auxin Response Factors (ARFs) are of vital importance in plant growth and vascular development. Class A ARFs are the core auxin-driven drivers of embryogenesis, vascular pattern development, (pro)cambial stem cell initiation and xylem cell fate specification, while class B ARFs may attenuate or fine-tune auxin-mediated development. The potential roles of class C ARFs in vascular development and xylogenesis, however, remain lar...
Modeling air temperature from snow-buried sensors to refine multi-decadal warming trends in Great Basin National Park, NV, USANARA Subscribed
Collecting reliable meteorological data in mountain environments is difficult because harsh conditions, complex terrain, and limited access disrupt long-term observations. In the Snake Range, Nevada, snow cover of low-cost temperature and humidity sensors creates winter gaps in near-surface air temperature records. To address this challenge, we developed three Random Forest Regression models to predict 2-m daily maximum, mean,...
Background and aims Biological nitrogen fixation (BNF) supplies much of soybean ( Glycine max (L.) Merr.) nitrogen (N) demand, but reported fixation rates vary widely, leading to uncertainty in the soybean N cycle. We quantified whole-plant soybean BNF and N allocation using long-term 15 N labeling to assess whether BNF can offset grain N removal in a high-yielding system, and to quantify root contributions to fixed N. Methods...
Tuning the F695 fluorescent state in photosystem II using site-directed mutagenesis in Synechocystis sp. PCC 6803NARA Subscribed
In photosynthetic proteins, pigments at a higher energy level funnel excitation energy to pigments at a lower energy level. Specifically, in Photosystem II (PSII), energy is transferred downhill to the reaction center (RC), where water splitting occurs. However, the lowest-energy state in PSII is not the RC, but the F695 state, which can be observed using low-temperature spectroscopy. This lowest-energy state is typically assi...
Biodiversity patterns of small mammals and their natural predators: implications for rodent pest management in agricultural systemsNARA Subscribed
There is increased interest in replacing the use of rodenticides with ecologically based rodent management practices to control rodent pests in agricultural ecosystems. One of the suggested methods is biological control by natural predators such as meso-carnivores and raptors. However, meso-carnivores and raptors, like other predators inhabiting agricultural ecosystems, face many threats, including persecution and habitat loss...
We report the first live in situ observations of the iconic goblin shark ( Mitsukurina owstoni ) on a seamount near Jarvis Island in 2019 and on the slope of the Tonga Trench in 2024. Past observations are restricted to specimens hauled to the surface, resulting in limited knowledge of this species' ecology. These observations extend its known geographic and depth range considerably, and extend the depth range of lamniform sha...