Structural Changes in Deoxyribonucleic Acid during Early Stages of Lens Regeneration in Triturus
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چکیده
منابع مشابه
Gene activation during early stages of lens induction in Xenopus.
Several stages in the lens determination process have been defined, though it is not known which gene products control these events. At mid-gastrula stages in Xenopus, ectoderm is transiently competent to respond to lens-inducing signals. Between late gastrula and neural tube stages, the presumptive lens ectoderm acquires a lens-forming bias, becomes specified to form lens and begins differenti...
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The existence of multiple molecular weight forms of DNA polymerase in different cellular locations of eukaryotie cells, and the demonstration that these enzyme activities have quite different properties (l-4) raise a number of questions about DNA metabolism in complex organisms. Some of these questions were implicit in the early work on mammalian DNA polymerase; particularly the demonstration t...
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چکیده ندارد.
15 صفحه اولChanges of Trigonelline, Nicotinic Acid and Proline Content in Early Growth Stages of Trigonella foenum-graecum L. under Saline Condition
Background: Some health-protecting secondary metabolites can be found at a higher concentration in the sprouts compared to other stages of plant growth. In addition, environmental stresses such as salt stress may be resulting in the increase or decrease of specific secondary metabolites in sprouts and plants. Objective: Evaluation the changes of trigonelline, nicotinic acid, and proline cont...
متن کاملRole of retinoic acid in lens regeneration.
Prompted by the actions of retinoids and their receptors in gene regulation, in the developing eye and especially in the lens, we have undertaken a detailed study to examine the effects of retinoids on urodele lens regeneration. First, we examined the effects of exogenous retinoids. It was found that exogenous retinoids had no significant effect on lens regeneration. However, when synthesis of ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1974
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)42863-9