https://www.selleckchem.com/products/TWS119.html git. © The Author(s) 2020. Published by Oxford University Press.BACKGROUND Model organisms are at the core of life science research. Notable examples include the mouse as a model for humans, baker's yeast for eukaryotic unicellular life and simple genetics, or the enterobacteria phage λ in virology. Plant research was an exception to this rule, with researchers relying on a variety of non-model plants until the eventual adoption of Arabidopsis thaliana as primary plant model in the 1980s. This proved to be an unprecedented success, and several secondary plant models have since been established. Currently, we are experiencing another wave of expansion in the set of plant models. SCOPE Since the 2000s, new model plants have been established to study numerous aspects of plant biology, such as the evolution of land plants, grasses, invasive and parasitic plant life, adaptation to environmental challenges, and the development of morphological diversity. Concurrent with the establishment of new plant models, the advent of the 'omics' era in biology has led to a resurgence of thlease e-mail journals.permissions@oup.com.Background The evolving outbreak of coronavirus disease 2019 (COVID-19) is requiring social distancing and other measures to protect public health. However, messaging has been inconsistent and unclear. Objective To determine COVID-19 awareness, knowledge, attitudes, and related behaviors among U.S. adults who are more vulnerable to complications of infection because of age and comorbid conditions. Design Cross-sectional survey linked to 3 active clinical trials and 1 cohort study. Setting 5 academic internal medicine practices and 2 federally qualified health centers. Patients 630 adults aged 23 to 88 years living with 1 or more chronic conditions. Measurements Self-reported knowledge, attitudes, and behaviors related to COVID-19. Results A fourth (24.6%) of participants were "very worried" about getting the c