Live online chat discussion with featured community member Anne Sternberger
Blog, Careers, Research, Research Blog0 Comments
/
Mark your calendars for the first Plantae.org live online chat discussion with featured community member Anne Sternberger!
Support your peers | Discuss plant science topics | Learn about how others work
Tuesday, June 27th at 5pm EST / 11am HST | Join: www.plantae.org/annes
Anne is…
Auxin Regulates Growth of a Characean Alga
Plant Physiology, Plant Physiology: On The Inside, Research, Research BlogAuxin regulates many aspects of growth and development in land plants, but the origin and evolution of auxin signaling and response mechanisms remain largely unknown. Genome analyses of the moss Physcomitrella patens revealed the presence of the principal gene families involved in auxin homeostasis and…
Is All Root Hair Development the Same?
Plant Physiology, Plant Physiology: On The Inside, Research, Research BlogRoot hairs are long tubular extensions of root epidermal cells that greatly increase the root surface area and thereby assist in water and nutrient absorption. Root hairs are found in nearly all vascular plants, including angiosperms, gymnosperms, and lycophytes, and they exhibit similar cellular features,…
Bypassing negative epistasis on yield in tomato imposed by a domestication gene
Plant Science Research Weekly, ResearchTomatoes normally grow as multiple flowers along a single branch. Soyk et al. explored a large collection of wild and domesticated accessions to identify those with branched inflorescences, which should be able to produce more fruit per plant. They identified a few related branchy mutants which they…
Towards an understanding of spiral patterning in the Sargassum muticum shoot apex
Plant Science Research Weekly, ResearchClassic studies of leaf placement (phyllotaxy) showed that two different mechanisms occur in land plants. In mosses, leaf placement is determined by the plane of cell division within the single apical cell, whereas in seed plants auxin acts as a morphogen that specifies leaf positioning. Linardić and…
TOPLESS mediates brassinosteroid control of shoot boundaries and root meristem development in Arabidopsis thaliana
Plant Science Research Weekly, ResearchShoot and root development in Arabidopsis thaliana are controlled by many factors, one of which is brassinosteroid (BR) signaling. BR-responsive gene expression is controlled by the BES1 and BZR1 transcription factors. Using its EAR domain, BES1 binds to the transcriptional repressor TOPLESS (TPL)…
Vitamin B6 Is Essential for Maize Embryogenesis
Plant Physiology, Plant Physiology: On The Inside, ResearchVitamin B6 is synthesized de novo in plants, fungi, archeae, and most eubacteria, but not in animals, including humans, which have to obtain it from dietary sources. Vitamin B6 is an essential cofactor for a range of biochemical reactions and a potent antioxidant. In plants, it plays important roles…
Meristem Doming and the Transition to Reproductive Development in Tomato
Research, The Plant Cell: In BriefDuring vegetative growth, the shoot apical meristem (SAM) produces lateral organ primordia but remains roughly the same size, as WUSCHEL–CLAVATA signaling modulates the balance between cell division and differentiation. During the transition to reproductive growth in many species, the SAM expands in…
MtLAX2, a functional homologue of the auxin influx transporter AUX1, is required for nodule organogenesis
Plant Science Research Weekly, ResearchNodules are specialized structures that form symbiotic, nitrogen-fixing associations with rhizobia on some plants including Medicago truncatula. Previous work has shown that auxin signalling is involved in nodule formation. Roy et al. extend this knowledge through the identification of a Medicago gene…