Scab

[1] We present four companion digital models of the age, age uncertainty, spreading rates, and spreading asymmetries of the world… (More)

Evidence for an “RNA world,” an episode of life on Earth during which RNA was the only genetically encoded component of… (More)

The average chemical compositions of the continental crust and the oceanic crust (represented by MORB), normalized to primitive… (More)

Biological soil crusts can be the dominant source of N for arid land ecosystems. We measured potential N fixation rates biweekly… (More)

No crustal rocks are known to have survived since the time of the intense meteor bombardment that affected Earth between its… (More)

During the past decade, the plant disease called scab or Fusarium head blight of wheat and barley has reached epidemic… (More)

Topical aminolevulinic acid is converted into a potent photosensitizer, protoporphyrin, in human hair follicles and sebaceous… (More)

ABSTRACT Scab is a destructive disease of wheat. To accelerate development of scab-resistant wheat cultivars, molecular markers… (More)

Subducted sediments play an important role in arc magmatism and crust–mantle recycling. Models of continental growth, continental… (More)

Scurfy (sf) is a spontaneous, sex-linked, recessive mutation that maps to the extreme proximal portion of the X chromosome, about… (More)