1. ostiole - a small pore especially one in the reproductive bodies of certain algae and fungi through which spores pass. pore - any small opening in the skin or outer surface of an animal. Based on WordNet 3.0, Farlex clipart collection.

What is ostiole in biology?

A pore in the fruiting body of certain fungi and algae, through which either spores or gametes are released. An ostiole occurs, for example, in the perithecium of ascomycete fungi (see ascocarp) and in the conceptacle of brown algae. From: ostiole in A Dictionary of Biology »

What is Osteole?

a small opening or pore, especially in the fruiting body of a fungus.

What is the function of the ostiole?

An ostiole is a small hole or opening through which algae or fungi release their mature spores. The term is also used in higher plants, for example to denote the opening of the involuted fig inflorescence through which fig wasps enter to pollinate and breed.

What is meant by ostium?

: of, relating to, or resembling bone also : affecting or involving bone or the skeleton.

What does ostiolar mean?

45 related questions found

What is ostium in female reproductive system?

The ostium of the uterine tube (plural ostia) may refer to the proximal or distal opening of the tube also called the Fallopian tube. The proximal tubal opening (ostium or os) is located within the uterus at the uterotubal junction and accessible via hysteroscopy.

What is coronary ostium?

An ostium (pl. ostia) is a generic medical term for "hole" - for example, there are coronary ostia in the aorta through which blood flows to the coronary arteries. Most people are born with two coronary ostia, one each for the left coronary artery and the right coronary artery.

What is Pseudothecia?

Noun. pseudothecium (plural pseudothecia) An ascocarp resembling a perithecium but whose asci are not regularly organised into a hymenium and are bitunicate, having a double wall which expands when it takes up water and shoots the enclosed spores out suddenly to disperse them.

What is Apothecium in botany?

apothecium. / (ˌæpəˈθiːsɪəm) / noun plural -cia (-sɪə) botany a cup-shaped structure that contains the asci, esp in lichens; a type of ascocarp.

What is the difference between a perithecium and a pycnidium?

is that pycnidium is in certain fungi, a flask-shaped cavity from the surface of the inner walls of which spores are produced while perithecium is an ascocarp shaped like a skittle or ball, distinguished by a small pore, the ostiole, through which the spores are released one by one when ripe.

What is Peziza ascocarp?

The ascocarp is cup-shaped, which is called apothecium. It contains a short stipe and a cup shaped disc. The basal portion of the apothecium is called hypothecium. It is generally thick and fleshy.

What is the relationship between an ascocarp and apothecium?

What is the relationship between an ascocarp and an apothecium? An apothecium is a cup-like fungus that has ascu lining the upper surface; it is a cup-like ascocarp. How does the fungal component of a lichen obtain its food?

What is Ascostroma?

A type of fungal fruit body in which asci develop in or within a stroma.

What is Apothecial?

: a spore-bearing structure in many lichens and fungi consisting of a discoid or cupped body bearing asci on the exposed flat or concave surface.

Which is type Ascocarp?

There are four types of ascocarps recognized; cleistothecium, perithecium, apothecium and ascostroma. The latter is a acavity that has been produced in a stroma to accomodate the asci and ascospores.

What is Pseudothecium venturia?

A pseudothecium has small dark hairs around its opening, and contains pseudoparaphyses along with asci. The asci contain eight haploid ascospores. The haploid chromosome number of V. inaequalis is seven.

What are the 4 main arteries of the heart?

The right coronary artery, the left main coronary, the left anterior descending, and the left circumflex artery, are the four major coronary arteries. Blockage of these arteries is a common cause of angina, heart disease, heart attacks and heart failure.

What is Ostia in medical terms?

: a mouthlike opening in a bodily part (such as a fallopian tube or a blood vessel)

What does ostial mean in cardiology?

An ostial lesion is defined as a lesion which begins within 3-5 mm of the origin of a major epicardial artery. Ostial lesions represent a challenge to the interventional cardiologist because they often involve the wall of the aorta, they are often calcified, they may not fully dilate and they are prone to restenosis.

Can u get pregnant without fallopian tubes?

Usually an egg has to travel from the ovaries into the fallopian tube to get fertilized, before continuing down to the uterus. Without the tubes it should be nearly impossible to get pregnant, unless the woman uses in-vitro fertilization, which Kough says she didn't do.

Where is the fallopian tube located in the female body?

One of two long, slender tubes that connect the ovaries to the uterus. Eggs pass from the ovaries, through the fallopian tubes, to the uterus. In the female reproductive tract, there is one ovary and one fallopian tube on each side of the uterus.

Do men have fallopian tubes?

Males with this disorder have normal male reproductive organs , though they also have a uterus and fallopian tubes, which are female reproductive organs . The uterus and fallopian tubes are derived from a structure called the Müllerian duct during development of the fetus.

What is Plectomycetes?

Noun. 1. Plectomycetes - class of fungi in which the fruiting body is a cleistothecium (it releases spores only on decay or disintegration) class Plectomycetes. class - (biology) a taxonomic group containing one or more orders.

What is fungi stroma?

Stroma, plural stromata, in fungi (kingdom Fungi), cushionlike plate of solid mycelium (masses of filaments that form the body of a typical fungus) formed by many members. Vegetative and reproductive structures are borne on or in them.

Why are there 8 spores in an ascus?

Typically, a single ascus will contain eight ascospores (or octad). The eight spores are produced by meiosis followed by a mitotic division. Two meiotic divisions turn the original diploid zygote nucleus into four haploid ones. ... As a result, the ascus will contain four pairs of spores.