Recent Posts

Cytoskeletal Targets of an Auxin Transport Inhibitor

The phytohormone auxin plays critical roles in various plant developmental programs by controlling cell expansion and polarity, as well as organ patterning. Auxin action relies on polar transport through different plant tissues. Auxin transport inhibitors are important tools for understanding auxin-dependent…

Stress-Induced Kinases Rapidly Relocate to Plasmodesmata

Plasmodesmata are membranous pores that span the plant cell wall creating both cytoplasmic and membrane continuums between cells. By interconnecting most cells throughout the entire plant body, plasmodesmata form a symplastic network that supports and controls the movement of molecules from cell to cell,…

Recognizing Plant Physiology first authors: Jing Fan

Jing Fan, first author of CircRNAs are involved in the rice-Magnaporthe oryzae interaction Current Position: Associate Professor, Rice Research Institute, Sichuan Agricultural University, China Education: 2010, Ph.D. in Botany, Chongqing University, China; 2005, B.S. in Bioengineering, Chongqing…

Keep sugar away to stay active: glycosylation of methyl salicylate shuts down systemic signaling

Plant hormones are frequently modified by glycosylation, hydroxylation, methylation and other conjugations, and these modifications can alter the hormone’s activity and stability (Wang et al., 2019). The phytohormone salicylic acid orchestrates effective defense and mediates local and systemic-acquired…

Insights into a Vascular Plant–Fungal Symbiosis

The land invasion by plants more than 500 million years ago was facilitated by the formation of mutualistic symbioses with fungi, through which the earliest plants gained access to mineral nutrients in exchange for photosynthetically fixed carbon (C). It was long hypothesized that this ancient mycorrhiza-like…

Smoke and Lettuce Seed Germination

Wildfire smoke contains certain potent bioactive compounds (butenolides) that play a major role in regulating the germination of many plant species, predominantly grasses and shrub species from fire-prone ecosystems but also many non-fire-dependent plants such as rice (Oryza sativa), wild oats (Avena…

Actin Binding Protein and Negative Gravitropism

Gravity is a key determinant in orienting plant stems for proper growth and development. An intact and dynamic actin cytoskeleton is thought to be important for plants to respond to gravity; however, pharmaceutical treatment and mutant analyses have yielded conflicting results. In Arabidopsis (Arabdopsis…

Heat Stress: Two New Insights

High temperatures caused by climate change are predicted to decrease cereal productivity in many parts of the world. Yield losses due to rising temperatures have already been reported for major cereal crops including maize (Zea mays), wheat (Triticum sp.), and rice (Oryza sativa). These cereals together…

Vacuolar H+-ATPase Regulates Al Resistance

In acidic soils, phytotoxic levels of active aluminum (Al) are released from Al-containing minerals when the pH drops to 5 or lower. These active Al forms, primarily Al3+, often threaten root vitality and inhibit primary root elongation, thus limiting the acquisition of nutrient elements and water necessary…