Plants
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PlantsA Frond Fared Well: Genes hint that ferns proliferated in shade of flowering plants
Analyses of genetic material from a multitude of fern species suggest that much of that plant group branched out millions of years after flowering plants first appeared, a notion that contradicts many scientists' views of plant evolution.
By Sid Perkins -
PlantsSudden oak death jumps quarantine
The funguslike microbe that causes sudden oak death has turned up on nursery plants in southern California for the first time.
By Susan Milius -
PlantsDawn of the Y: Papaya—Glimpse of early sex chromosome
Genetic mappers say that the papaya plant has a rudimentary Y chromosome, the youngest one in evolutionary terms yet found, offering a glimpse of the evolution of sex chromosomes.
By Susan Milius -
PlantsSweet Lurkers: Cryptic fungi protect chocolate-tree leaves
A whole world of fungi thrives inside tree leaves without causing any harm, and researchers now say these residents may help fight disease.
By Susan Milius -
PlantsWarm-Blooded Plants?
Research heats up on why some flowers have the chemistry to keep themselves warm.
By Susan Milius -
PlantsMicro Sculptors
Snippets of RNA that control biochemical reactions by squelching the creation of specific proteins play a role in the development of leaves.
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PlantsBean plants punish microbial partners
In a novel test of how partnerships between species can last in nature, researchers have found that soybeans punish cheaters.
By Susan Milius -
PlantsGlitch splits hermaphrodite flowers
In a newly proposed scenario, polyploidy may trigger perfectly good hermaphrodite plants to evolve gender forms.
By Susan Milius -
PlantsNext loosestrife is already loose
A Florida botanist warns against Nymphoides cristata and Rotala rotundifolia, very troublesome escapees from aquariums and water gardens.
By Susan Milius -
PlantsMisunderstood stripes confuse individuality
In the debate over how many fungi make up one lichen body, a researcher argues for two unrelated fungal species in the same lichen.
By Susan Milius -
PlantsEverglades plant is he, then she, then he
Sawgrass, the signature plant of the Everglades, switches genders twice during its week of blooming and thus reduces the chances of self- fertilization.
By Susan Milius -
PlantsEmergency Gardening
High-tech tissue culture is helping some ultrarare plants finally have sprouts of their own.
By Susan Milius