sporophyll

/'spɔ:rəfil/ Cách viết khác : (sporophyll) /'spɔ:rəfil/

Thân thiện

A fern sporophyll unfurls to reveal clusters of sporangia on its underside.

Definition

1. Noun:
   • A specialized leaf that bears sporangia: In certain plants, particularly ferns, mosses, and some gymnosperms, a sporophyll is a leaf or leaf-like structure modified to carry one or more sporangia, which are the organs that produce and contain spores.

Examples of Usage

• Noun:
  • The fern's sporophylls are easily distinguished from its sterile fronds.
  • In club mosses, the sporophylls are grouped into a distinct cone-like structure called a strobilus.

Advanced Usage

• Sporophyll arrangement: The specific organization of sporophylls, such as in cones or on specialized fronds, is a key taxonomic feature in plant classification.
  • The study focused on the evolutionary significance of the sporophyll arrangement in ancient lycophytes.

Variants and Related Words

• Sporophyllar (adj): Pertaining to or of the nature of a sporophyll.
  • The sporophyllar tissue showed unique cellular differentiation.
• Sporangium (n): The spore-producing organ borne on a sporophyll.
• Megasporophyll (n): A sporophyll that bears megasporangia, which produce megaspores (typically leading to female gametophytes).
• Microsporophyll (n): A sporophyll that bears microsporangia, which produce microspores (typically leading to male gametophytes).

Synonyms

• Sporogenous leaf: A less common synonym emphasizing the leaf's spore-producing function.
• Fertile frond: A term often used in ferns to describe a frond that bears sporangia, which may be synonymous or closely related to a sporophyll.

Related Phrases

• Sporophyll bearing: The act or condition of producing or carrying sporophylls.
  • The period of sporophyll bearing occurs annually in this species.

Học thuật

Noun

1. leaf in ferns and mosses that bears the sporangia

Từ đồng nghĩa

• sporophyl