Organogenesis

(redirected from Organ development)
Also found in: Dictionary, Medical.
Related to Organ development: Cell development

organogenesis

[ȯr‚gan·ə′jen·ə·səs]
(embryology)
The formation of an organ.

Organogenesis

 

the formation and development of organs in animals. Ontogenetic organogenesis is studied through embryology and biology of development, while phylogenetic organogenesis is studied through comparative anatomy. These disciplines describe and analyze the processes of organogenesis and explain the phylogenetic and ontogenetic origins of the processes. Comparative anatomy examines the rise of new organs and the transformation, division, progressive development and reduction, and rudimentation of organs. Study of the development of the forms of organs in connection with organ function led to the discovery of the basic principles of phylogenetic organogenesis—differentiation (seeDIFFERENTIATION), integration (seeINTEGRATION), and change of function.

To a large extent, ontogenetic organogenesis repeats phylogenetic organogenesis (seeBIOGENETIC LAW). Successive differentiation and integration of organs and uneven growth and active migration of cellular material occur in the course of ontogenetic organogenesis. The forces that underlie ontogenetic organogenesis can be precisely studied, especially by experiment. (For initial and subsequent stages of organogenesis seeDETERMINATION, CLEAVAGE, EMBRYONIC DEVELOPMENT, GERM LAYERS, INDUCTORS, INDUCTION, ORGANIZER.)

With respect to plants, “organogenesis” usually refers to the ontogenetic formation and development of basic organs—roots, stem, leaves, and flowers—from undifferentiated tissue, or meristem (seeMERISTEM).

References in periodicals archive ?
There are only two genes of hydroxy cinnamoyl-CoA quinate hydroxycinnamoyl transferase (HQT) and allene oxide synthase LjAOS were reported to correlated with the biosynthesis of chlorogenic acid during the floral organ development of L.
The function of the E class gene and the reciprocal relationship between this gene and other genes associated with floral organ development remain unclear.
Due to their unique and newer characteristics which are similar to skin/ other tissues, these scaffolds would be considered as an alternative option in tissue engineering/ artificial organ development including wound healing biomaterial.
Key words: Aseel chicken, varieties, carcass characteristics, organ development and sex.
Phthalates aren't just causing concern in Europe; for example, in the US a scientific panel recently expressed their concern about the impact some phthalates could be having on male reproductive organ development.
The benefits were deemed to outweigh the risks given the patient's extensive blood volume loss over several weeks and the gestational age of the fetus, which was past the period of major organ development.
They are intended for different purposes such as organ development of biologics and drugs, and organ transplant procedures and research.
Needleman Professor of Medicine at Washington University said that this study is surprising because biologists always assumed that organ development was orchestrated from the nucleus of a cell, and that the mitochondria simply followed along and did what they were told.
The present study investigated the effects of low levels of WSP and AEP supplementation (50 and 100 mg/kg diet), and xylanase supplementation (3 and 6 mg/kg diet) on the growth and organ development of broiler chicks fed a corn-soybean meal-based diet.
Biologists, engineers, and physicists from HSPH and IBEC worked together to shed light on collective cellular motion because it plays a key role in functions such as wound healing, organ development, and tumor growth.
A winter of night light in the lab sped up the males' molting and advanced testosterone surges as well as organ development in spring.
The morphological and molecular basisof tissue and organ development in zebrafish embryos resembles that of humans, and the overall drug toxicity is also comparable with that observed in animals.