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 […]
Hormones are signaling molecules, and in most (but not all) cases part of their function is to convey information from one cell or tissue to another, sometimes from cell-to-cell and sometimes through vascular tissues. Park et al. review our current state of understanding of transporters for diverse plant hormones, starting with auxin and extending through […]
Pioneer transcription factors are a special type of transcription factor that are able to access their target sequences in condensed chromatin. They are often associated with changes in cell fate and developmental switching. Tao et al. showed that the seed-specific transcription factor LEAFY COTYLEDON1 (LEC1) acts as a pioneer transcription factor. In Arabidopsis, prolonged cold […]
Review: Plant hormone transporters: what we know and what we would like to know Hormones are signaling molecules, and in most (but not all) cases part of their function is to convey information from one cell or tissue to another, sometimes from cell-to-cell and sometimes through vascular tissues. Park et al. review our current state […]
Polished white rice is a major food source for much of the world but is not a good source of the essential micronutrients iron and zinc. Like microbes, plants enhance their uptake of iron from the environment by synthesizing small “iron carrying” molecules called respectively siderophores or phytosiderophores (some of which are also carriers for […]