(1) The maximum extent of ciliary degeneration is best seen in the chemically induced autogamous cells: 7 kinetics (rows of unit teritories) at the anterior-left, 4 kinetics at the anterior-right, 10 or more kinetics at the posterior-right and the right wall of the vestibule of the mouth.
(2) As the cells begin starving and the percentage of autogamous cells increases, catalase activity decreases.
(3) This principle states that a biallelic polymorphism is maintained if the heterozygote is superior in its degree of "heterogamous self-replication" to the degrees of "autogamous self-replication" of the corresponding homozygotes.
(4) Two leghaemoglobin genes from the diploid, autogamous Medicago truncatula (Mtlb1 and Mtlb2) have been cloned and their nucleotide sequences determined.
(5) The timing of the events of conjugation and autogamy coincide when the pre-autogamous fission is aligned temporally with the initial contact of mating cells.
(6) Injection into exconjugants and autogamous cells followed by macronuclear regeneration, induced by microsurgical removal of macronuclear Anlagen, resulted in maintenance of kappa particles by a considerable proportion of the clones descended from the recipient paramecia.
(7) (1973) may be used for exclusively autogamous species of helminths.
(8) The general pattern of ultrastructural organization of macronuclear fragments which appear during autogamous changes of the nuclear apparatus of Paramecium aurelia is similar to that observed in undisturbed macronuclei.
Autogamy
Definition:
(n.) Self-fertilization, the fertilizing pollen being derived from the same blossom as the pistil acted upon.
Example Sentences:
(1) This study examines the consequences of nutritional down-shift at various points within the cell cycle on the occurrence of autogamy.
(2) The clonal age in paramecia refers to the total number of vegetative divisions a clone has undergone since its origin at autogamy (self-fertilization).
(3) Treatments that perturb the cell cycle and displace the point of commitment of division also displace the point of initial commitment to autogamy to the same extent.
(4) The 22 cell lines with defective micronucleus exhibited various abnormalities of the oral apparatus newly formed during autogamy.
(5) Injection of nucleoplasm into vegetative macronuclei produced over 70% transformants able to express the A serotype after the next autogamy.
(6) Together with other data, this result suggests that in wild type cells the A gene in the old macronucleus ensures the presence of a cytoplasmic factor that prevents A gene deletions at autogamy.
(7) The resistant stocks (R) are able to grow continuously at 35 degrees C while the sensitive stock (S) cells die within 48 h. The F1s of R X S crosses exhibited a cytoplasmic pattern of inheritance and all F2-by-autogamy lines derived from the S cytoplasmic parent are sensitive.
(8) After autogamy, a large increase of catalase activity occurs during the sexual immaturity phase, i.e.
(9) We found the sporadic occurrence of very long clonal lifespans, such as 330 fissions, without selection and autogamy.
(10) The amicronucleate cell lines showed reduced growth rate and formed abnormal oral apparatuses in asexual reproduction, and failed to produce any oral apparatus in autogamy, in agreement with previous observations on amicronucleate cells obtained by micropipetting.
(11) Autogamy, which leads to complete homozygosity, guarantees the expression of recessive mutations.
(12) Since micronuclei were not transplanted, the phenotypic reversion after autogamy is to be expected, and demonstrates that the transformation affects the macronucleus only.
(13) Processing of micronuclear DNA into new macronuclear DNA at conjugation and autogamy is under the control of the old macronucleus, and newly forming macronuclei become exactly like the old.
(14) Autogamy, which was checked with two closely linked marker genes, was frequent, but only during the period when lines were terminating.
(15) No degeneration of cilia is observed in natural autogamy of P. tetraurelia, whereas in chemically induced autogamy of P. caudatum degeneration occurs as in ordinary conjugation.
(16) Autogamy is a process of meiosis and fertilization which takes place in unpaired Paramecium cells, and which is triggered by starvation.
(17) If, however, the hybrid cell lines are brought to autogamy (which discards the existing macronucleus and forms a new one from sexual products derived from a micronucleus), then the lines revert to the ftA phenotype.
(18) If cells are refed at this point, or at later stages, autogamy continues.
(19) The level of starvation required for initiation of autogamy decreases progressively as cells age.
(20) Transfer of macronucleoplasm from the wild type to strain d48 caused d48 to revert to the wild type after autogamy.