منابع مشابه
Genetic Tumors of Nicotiana. I. Chemical Composition of N. glauca, N. langsdorffii, & Their F(1) Hybrid.
The F1 hybrid of Nicotiana glauca Grah. and N. langsdorffii Weinm. is well known for its spontaneous tumor-producing ability. Most investigations concerning plant tumors are in the field of genetics or cytology (2,4,6); a few deal with the free amino acid levels of N. glauca, N. langsdorffii and their hybrid (1, 3, 8). However, no references are available on the general chemical composition of ...
متن کاملMolecular and genetic aspects of odontogenic tumors: a review
Odontogenic tumors contain a heterogeneous collection of lesions that are categorized from hamartomas to benign and malignant neoplasms of inconstant aggressiveness. Odontogenic tumors are usually extraordinary with assessed frequency of short of 0.5 cases/100,000 population for every year. The lesions such as odontogenic tumors are inferred from the components of the tooth-structuring contrapt...
متن کاملcontrol of the optical properties of nanoparticles by laser fields
در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
15 صفحه اولA Cytogenetic Study of Heritable Tumors in Nicotiana Species Hybrids.
ENETIC tumors in Nicotiana species hybrids have been reported by several Ginvestigators. These tumors are formed in certain specific hybrid combinations on stems, roots, and occasionally on leaves of all or part of the F, progeny. Since the discovery by KOSTOFF (1930) of nine interspecific tumorous hybrids, almost 20 additional hybrid combinations have been reported in which the entire progeny ...
متن کاملPhenotypic, genetic and genomic consequences of natural and synthetic polyploidization of Nicotiana attenuata and Nicotiana obtusifolia.
BACKGROUND AND METHODS Polyploidy results in genetic turmoil, much of which is associated with new phenotypes that result in speciation. Five independent lines of synthetic allotetraploid N. x obtusiata (N x o) were created from crosses between the diploid N. attenuata (Na) (male) and N. obtusifolia (No) (female) and the autotetraploids of Na (NaT) and No (NoT) were synthesized. Their genetic, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Transactions of the New York Academy of Sciences
سال: 1962
ISSN: 0028-7113
DOI: 10.1111/j.2164-0947.1962.tb01438.x