Genetic screens have revealed many key components of light signaling. In this new work, Sinclair et al. provide new insights into the repression of photomorphogenesis by cell-wall derived signals. They started with a mutant, de-etiolated by zinc (dez) that shows open cotyledons and a short hypocotyl (characteristic of photomorphogenesis) in the presence of excess zinc. […]
Review: Growth-mediated plant movements: hidden in plain sight ($) Time-lapse imaging reveals the slow movements of plants, such as phototropism and gravitropism. Harmer and Brooks review the molecular bases for these growth-mediated movements. While auxin has long been known to be involved in photo- and gravitropisms, new results show that ABA is involved in the […]
By Takaki Yamauchi, Timothy D Colmer, Ole Pedersen, Mikio Nakazono Introduction Root acquisition of water and nutrients is essential for plant growth and crop productivity (Lynch, 2015). An improved understanding of root system development and functioning, to identify root traits contributing to crop yields in various scenarios, is a research frontier that might enable a […]
By Gregory D. Reynolds, Chao Wang, Jianwei Pan, Sebastian Bednarek Introduction The plasma membrane (PM) serves as the interface between the cell and its environment. Accordingly, cells have the capacity to modulate their complement of PM-associated receptors, transporters, channels, lipids, and other membrane components in order to modulate numerous physiological functions including synthesis of the […]
By Maureen R Hanson, Kevin M Hines ABSTRACT Stromules are narrow tubular structures, comprised of stroma surrounded by the envelope membrane, which emanate from all types of plastids found in vascular plants. The mechanism for formation of stromules is not understood, but investigating how they arise will be stimulated by the recent observation that they […]
By Rashmi Sasidharan, Sjon Hartman, Zeguang Liu, Shanice Martopawiro, Nikita Sajeev, Hans van Veen, Elaine Yeung, Laurentius A.C.J. Voesenek Abstract Flooding is detrimental for nearly all higher plants including crops. The compound stress elicited by slow gas exchange and low light levels under water is responsible for both a carbon and an energy crisis ultimately […]
Washington, D.C. – A group of prestigious not-for-profit scientific membership societies today announced the launch of the Scientific Society Publisher Alliance (SSPA) (byscientistsforscience.org), an initiative focused on building awareness of and support for publication of scientific research by scientist-run scientific societies. The SSPA started as a collaboration of scientific societies that came together to reinforce […]
“Over 200 million humans are at risk of arsenic poisoning,” due to arsenic in groundwater and its uptake into crops. Our understanding of the transporters through which arsenic enters the plant, moves through the plant, and enters the seed has increased substantially in recent years, opening the door to diverse strategies for reducing arsenic accumulation […]
Changing climates mean changing rainfall patterns, which can have serious consequences for long-lived plants such as conifers. Moran et al. provide a thoughtful and readable overview of the strategies that enable some conifer species to survive drought. They start by discussing the different definitions of “drought tolerance” and what they mean for different types of […]