What's the difference between germination and protonema?
Germination
Definition:
(n.) The process of germinating; the beginning of vegetation or growth in a seed or plant; the first development of germs, either animal or vegetable.
Example Sentences:
(1) In contrast, in primordial follicles, FSH was restricted to the germ cell but was present in both the oocyte cytoplasm and germinal vesicle.
(2) T cells admixed in the germinal centers were overwhelmingly of the T-helper type.
(3) The lack of TBM prior to germinal center development and their absence in aged mice are inconsistent with the concept that TBM are required for the induction of the germinal center reaction.
(4) In contrast, Sca-2 did not appear to stain peripheral T lymphocytes, but recognized only a subset of B lymphocytes which could be localized by immunohistochemistry to germinal centers.
(5) The processes of germination and gruel preparation of germinated materials contributed to the digestibility of weaning foods prepared from cereals and legumes.
(6) The results presented here substantiate the hypothesis that in S. cerevisiae trehalose supplies energy during dormancy of the spores and not during the germination process.
(7) The response is dose dependent for LPA concentrations from 10(-8) to 10(-3) M. Incubation of oocytes in LPA does not induce germinal vesicle breakdown.
(8) Histologic examination showed multiple tissues derived from two or three germinal layers.
(9) The spore germination was synchronized by selection of the spores of the definite size and maintenance at a temperature of 0 degrees.
(10) GAD activity appeared in mutant spores after germination and increased to levels comparable to parent spores after 9 min of germination.
(11) A system for obtaining synchronous germination of mitospores is described.
(12) (2) Highly aneuploid and polyploid types were induced in diploid and haploid germinating conidia by chloral hydrate but not to any significant extent by gamma-rays.
(13) The observed signals from germinating seeds of Phaseolus aures and decaying leaves of Eucalyptus are presented to show that the signals have characteristic kinetics and intensity.
(14) The efficacy of combined cytostatic-surgical treatment was evaluated in a prospective study involving 70 patients with germinal tumors of the testis metastasizing into the lungs.
(15) Growth plate germinal cell division is directly related to the epiphyseal vascular respect.
(16) Germinal vesicle stage oocytes undergo perinuclear aggregation of acidic organelles during GVBD and these organelles subsequently disperse into the cell cortex as the first meiotic spindle migrates to the oocyte periphery.
(17) When oocytes were microinjected first with the mosxe antisense oligonucleotide, and subsequently with in vitro synthesized v-mos RNA, meiotic maturation was rescued as evidenced by germinal vesicle breakdown.
(18) Effects of alpha- or beta-D-glucose on the respiration of germinated spores (only germinated spores not including swollen spores and elongated spores) of Bacillus subtilis and B. megaterium were studied.
(19) Therefore, Leu 7+ (Leu 3+) germinal-center cells are distinct from "classic" T-helper cells of blood and lymphoid tissues.
(20) Either d- or l-leucine (10(-3)m) and unsaturated long-chain fatty acids such as oleic, linoleic, and arachidonic (10(-4)m) significantly stimulated macroconidia germination of Microsporum gypseum.
Protonema
Definition:
(n.) The primary growth from the spore of a moss, usually consisting of branching confervoid filaments, on any part of which stem and leaf buds may be developed.
Example Sentences:
(1) The filamentous protonema of this moss initiates bud cells which through repeated divisions form the leafy gametophores.
(2) Growing chloronema and rhizoid cells of the intact protonema of Funaria hygrometrica absorb luminescent stains selectively.
(3) In addition, increasing concentrations of AFB1 caused a reduction in the total number of cells per protonema.
(4) The filamentous protonema undergoes a number of developmental transitions that can be observed directly in living material using time-lapse video microscopy and that can be manipulated both by treatment with phytohormones and by environmental stimuli.
(5) Changes in intracellular [Ca2+] ([Ca2+]i) after cytokinin-treatment in protonema cells of the moss Funaria hygrometrica have been measured using the pentapotassium salt of Indo-1.
(6) The anion stain (uranine) is absorbed by the basal end of the apical cells and by intercalary cells of the protonema filaments.
(7) Fern (Onoclea sensibilis) gametophytes when grown in the dark form a linear file of cells (one-dimensional) called a protonema.