Definition of antheridium in English:

antheridium

nounPlural antheridia ˌanθəˈrɪdɪəmˌanTHəˈridēəm

Botany

The male sex organ of algae, mosses, ferns, fungi, and other non-flowering plants.
〔植〕藏精器，精子器
Example sentencesExamples
- The receptacles are reproductive branches and contain many cavities with external pores which contain antheridia and oogonia, then through meiosis, sperm and egg are produced.
- Fern gametes are free-swimming and a thin film of water is required for the male gametes to travel from the antheridia into the neck of the archcgonia to fertilize the eggs.
- Since the asexual gametophyte does not form antheridia or archegonia, crosses to confirm its genotype could not be performed.
- The parent also contains antheridia which produce sperm and an oogonium which produces the egg.
- Notwithstanding their general similarity, the archegonia of mosses differ externally from antheridia in having a longer neck and longer stalk.

Derivatives

antheridial

adjective

Botany

Each antheridial chamber incorporates several antheridia, all of which are developed from one antheridial initial.
Example sentencesExamples
- The oogonial initial penetrates the antheridial initial and rapidly expands to form the oogonium.
- Approximately 50% of the antheridial primordial protoplasts obtained by enzymatic isolation were found to be viable.
- The latter are much more abundant in the antheridial tufts, where they have somewhat swollen heads.
- Studies on development of antheridia and antheridial dehiscence have been conducted by Davie and Hartman.

Origin

Mid 19th century: modern Latin, from anthera (see anther) + -idium (from the Greek diminutive suffix -idion).

Definition of antheridium in US English:

antheridium

nounˌanTHəˈridēəm

Botany

The male sex organ of algae, mosses, ferns, fungi, and other nonflowering plants.
〔植〕藏精器，精子器
Example sentencesExamples
- The parent also contains antheridia which produce sperm and an oogonium which produces the egg.
- Since the asexual gametophyte does not form antheridia or archegonia, crosses to confirm its genotype could not be performed.
- Fern gametes are free-swimming and a thin film of water is required for the male gametes to travel from the antheridia into the neck of the archcgonia to fertilize the eggs.
- Notwithstanding their general similarity, the archegonia of mosses differ externally from antheridia in having a longer neck and longer stalk.
- The receptacles are reproductive branches and contain many cavities with external pores which contain antheridia and oogonia, then through meiosis, sperm and egg are produced.

Origin

Mid 19th century: modern Latin, from anthera (see anther) + -idium (from the Greek diminutive suffix -idion).

词汇	antheridium
释义	Definition of antheridium in English: antheridium nounPlural antheridia ˌanθəˈrɪdɪəmˌanTHəˈridēəm Botany The male sex organ of algae, mosses, ferns, fungi, and other non-flowering plants. 〔植〕藏精器，精子器 Example sentencesExamples The receptacles are reproductive branches and contain many cavities with external pores which contain antheridia and oogonia, then through meiosis, sperm and egg are produced. Fern gametes are free-swimming and a thin film of water is required for the male gametes to travel from the antheridia into the neck of the archcgonia to fertilize the eggs. Since the asexual gametophyte does not form antheridia or archegonia, crosses to confirm its genotype could not be performed. The parent also contains antheridia which produce sperm and an oogonium which produces the egg. Notwithstanding their general similarity, the archegonia of mosses differ externally from antheridia in having a longer neck and longer stalk. Derivatives antheridial adjective Botany Each antheridial chamber incorporates several antheridia, all of which are developed from one antheridial initial. Example sentencesExamples The oogonial initial penetrates the antheridial initial and rapidly expands to form the oogonium. Approximately 50% of the antheridial primordial protoplasts obtained by enzymatic isolation were found to be viable. The latter are much more abundant in the antheridial tufts, where they have somewhat swollen heads. Studies on development of antheridia and antheridial dehiscence have been conducted by Davie and Hartman. Origin Mid 19th century: modern Latin, from anthera (see anther) + -idium (from the Greek diminutive suffix -idion). Definition of antheridium in US English: antheridium nounˌanTHəˈridēəm Botany The male sex organ of algae, mosses, ferns, fungi, and other nonflowering plants. 〔植〕藏精器，精子器 Example sentencesExamples The parent also contains antheridia which produce sperm and an oogonium which produces the egg. Since the asexual gametophyte does not form antheridia or archegonia, crosses to confirm its genotype could not be performed. Fern gametes are free-swimming and a thin film of water is required for the male gametes to travel from the antheridia into the neck of the archcgonia to fertilize the eggs. Notwithstanding their general similarity, the archegonia of mosses differ externally from antheridia in having a longer neck and longer stalk. The receptacles are reproductive branches and contain many cavities with external pores which contain antheridia and oogonia, then through meiosis, sperm and egg are produced. Origin Mid 19th century: modern Latin, from anthera (see anther) + -idium (from the Greek diminutive suffix -idion).
随便看	adhere adhered adherence adherence adherences adherence to adherency adherend adherent adherently adherently adherent of adherents adherer adheres adherescent adhere to adhere to the rules adhering adhesin adhesins adhesion adhesional adhesion contract adhesion molecule