منابع مشابه
From Darkness into Light: Factors Controlling Photomorphogenesis
A seedling that emerges in darkness follows a developmental program known as skotomorphogenesis (dark development), which is characterized by etiolation, that is, a long, spindly hypocotyl and pale cotyledons and inhibition of chlorophyll and anthocyanin biosynthesis and true leaf development. Upon exposure to light, the seedling switches rapidly to photomorphogenesis (light development); the h...
متن کاملFrom Darkness into Light: Factors Controlling Photomorphogenesis
A seedling that emerges in darkness follows a developmental program known as skotomorphogenesis (dark development), which is characterized by etiolation, that is, a long, spindly hypocotyl and pale cotyledons and inhibition of chlorophyll and anthocyanin biosynthesis and true leaf development. Upon exposure to light, the seedling switches rapidly to photomorphogenesis (light development); the h...
متن کاملPhotodynamic therapy: a light in the darkness?
Photodynamic therapy (PDT) is used to treat localized premalignant or early malignant disease. This study reports the enhanced, systemic antitumor immune response from PDT, suggesting that it may have a potential role as a therapy to address both local and disseminated disease.
متن کاملSeeing Darkness: The New Cosmology
We present some useful ways to visualize the nature of dark energy and the effects of the accelerating expansion on cosmological quantities. Expansion probes such as Type Ia supernovae distances and growth probes such as weak gravitational lensing and the evolution of large scale structure provide powerful tests in complementarity. We present a “ladder” diagram, showing that in addition to dram...
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ژورنال
عنوان ژورنال: Astronomy & Geophysics
سال: 1998
ISSN: 1366-8781,1468-4004
DOI: 10.1093/astrog/39.3.3.35