Entries by Mary Williams

Repeated gain and loss of a single gene modulates the evolution of vascular plant pathogen lifestyles (Science Advances)

Within the bacterial genus Xanthomonas there are many plant pathogens, some of which colonize living cells within leaves, and others of which are vascular pathogens that colonize and spread through vascular tissues. Gluck-Thaler et al. looked at genomes from sets of closely related bacteria that are either vascular or nonvascular plant pathogens. They identified a […]

The rise of angiosperms pushed conifers to decline during global cooling (Proc. Natl. Acad. Sci. USA)

During the Triassic and Jurassic periods (approximately 250 – 140 million years ago), Earth was dominated by gymnosperms including conifers. Today, the number of species and individuals is greatly reduced from their heyday, and instead Earth is dominated by angiosperms. Although it is widely stated that angiosperms outcompeted gymnosperms and pushed them to the harsher […]

Plant Science Research Weekly: November 20, 2020

Review: Integration of reactive oxygen species and hormone signaling during abiotic stress During its life cycle, a plant experiences many types of abiotic stress including drought. While waiting for the next drops of water, a thirsty plant acclimates by initiating a series of tolerance responses. Stress perception is followed by stress-induced signaling which can include […]

Plant Physiology welcomes 16 new Assistant Features Editors

At the beginning of 2018, Plant Physiology initiated a program to introduce several promising early-career scientists to the editorial board and engage their expertise in assessing and writing about research published in the journal. Over the past three years, these scientists brought their passion for science to the journal, communicating to our readers each month […]

Gramene 2021: harnessing the power of comparative genomics and pathways for plant research (Nucleic Acids Research)

Gramene (www.gramene.org) is a curated, open-source, integrated data resource for comparative functional genomics in crops and model plant species. It launched 20 years ago and has continually grown and expanded to incorporate new tools and resources. This update by Tello-Ruiz et al. describes its current iteration, #63. Gramene “hosts 93 reference genomes—over 3.9 million genes […]

Formation of flavone-based wooly fibres by glandular trichomes of Dionysia tapetodes (bioRxiv)

Many people are familiar with the popular houseplant Cephalocereus senilis, which also known as old man cactus because it is covered with long white hairs that are thought to protect it from frost and UV light. A similar function is described for the wooly fibers that cover the alpine plant Dionysia tapetodes, investigated here by […]

Plant Science Research Weekly: November 13, 2020

Review: Homoeologous exchanges, segmental allopolyploidy, and polyploid genome evolution Polyploidy or whole-genome duplication (WGD) is an important process in plant evolution and speciation. Additional sets of chromosomes can be derived from intraspecific genome duplication (autopolyploidy) or hybridization of divergent genomes and chromosome doubling (allopolyploidy). In early stages of allopolyploid formation, the interaction and recombination between […]

Creating Crops for the Future: Challenges, Technology and Sustainable Solutions

Creating Crops for the Future: Challenges, Technology, and Sustainable Solutions A special event hosted by Australian Research Council Centre of Excellence for Translational Photosynthesis and Australian Research Council Centre of Excellence for Plant Energy Biology Recorded November 11, 11 am Australia East Coast Daylight Time (AEDT UTC+11 ) (November 10, 7pm EST, 4pm PST) One […]