The Accumulation of Soluble Deoxyribosidic Compounds in Relation to Nuclear Division in Anthers of Lilium longiflorum
نویسندگان
چکیده
Intervals of sporogenous DNA synthesis in lily anthers are associated with marked accumulations of methanol- and acid-soluble deoxyribosidic compounds. There are differences in solubility between compounds accumulating at meiosis and those accumulating at mitosis. The formation of these compounds appears to be related to a breakdown of somatic DNA.
منابع مشابه
Variations in Sulfhydryl Concentration During Microsporocyte Meiosis in the Anthers of Lilium and Trillium
Anthers of lily and trillium were followed with respect to variations in protein and soluble sulfhydryls during meiosis and mitosis of the sporogenous tissue. In lily, the meiotic and mitotic cycles are each preceded by a rise in soluble -SH; in trillium there is only one rise which precedes meiosis. During division there is a marked drop in soluble -SH and a rise in soluble disulfides. Protein...
متن کاملDeamination of Deoxycytidine and 5-methyldeoxycytidine in Developing Anthers of Lilium Longiflorum (var. Croft)
A study has been made of developmental variations in anthers of Lilium longiflorum with respect to the deamination of deoxycytidine and 5-methyldeoxycytidine. Although a periodicity of enzymatic activities surrounding the mitotic cycle has been found, the over-all evidence is against the significance of such periodicity to chromosome duplication. On the basis of evidence obtained a distinction ...
متن کاملVariations in Sulfhydryl Concentration During Microsporocyte Meiosis in the Anthers of Lilium and Trillium* BY HERBERT STERN, PH.D. WITH THE TECHNICAL ASSISTANCE 01~ B. RHEAUME
Anthers of lily and trillium were followed with respect to variations in protein and soluble sulfhydryls during meiosis and mitosis of the sporogenous tissue. In lily, the meiotic and mitotic cycles are each preceded by a rise in soluble --SH; in trillium there is only one rise which precedes meiosis. During division there is a marked drop in soluble --SH and a rise in soluble disulfides. Prote...
متن کاملVariations in Sulfhydryl Concentration During Microsporocyte Meiosis in the Anthers of Lilium and Trillium* BY HERBERT STERN, PH.D. WITH THE TECHNICAL ASSISTANCE 01~ B. RHEAUME
Anthers of lily and trillium were followed with respect to variations in protein and soluble sulfhydryls during meiosis and mitosis of the sporogenous tissue. In lily, the meiotic and mitotic cycles are each preceded by a rise in soluble --SH; in trillium there is only one rise which precedes meiosis. During division there is a marked drop in soluble --SH and a rise in soluble disulfides. Prote...
متن کاملExpression and localization of two anther-specific genes in the tapetum and microspore of Lilium longiflorum
Two stage-specific genes have been isolated from a subtractive cDNA library constructed from developing anthers of Lilium longiflorum. Tandem 5ˊand 3ˊ-rapid amplifications of cDNA ends with polymerase chain reaction (5ˊand 3ˊ-RACE-PCR) were used to obtain the full length cDNA sequences. The LLA89 cDNA contained an open reading frame of 303 bp encoding an acidic polypeptide of 100 amino acids wi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of Biophysical and Biochemical Cytology
دوره 5 شماره
صفحات -
تاریخ انتشار 1959