What is elater in botany?

An elater is a cell (or structure attached to a cell) that is hygroscopic, and therefore will change shape in response to changes in moisture in the environment. Elaters come in a variety of forms, but are always associated with plant spores.

What do you mean by elater?

: a plant structure functioning in the dispersal of spores: such as. a : one of the elongated filaments among the spores in the capsule of a liverwort. b : one of the filamentous appendages of the spores in the horsetails.

What is the function of elater?

Elaters are the ribbon or tube like structures attached to the wall of spore. The elaters function is to increase dispersal because they push the spores out of the plant by absorbing moisture.

What is elater in Pteridophytes?

Elaters are ribbon-like or tube-like structures that are attached to the spore walls. They are sterile cells. Elaters are hygroscopic (can absorb water) in nature. Their main function is the dispersal of spores as they push the spores out of the plant by absorbing moisture.

What is Peristome in botany?

Peristome (from the Greek peri, meaning ‘around’ or ‘about’, and stoma, ‘mouth’) is an anatomical feature that surrounds an opening to an organ or structure. Some plants, fungi, and shelled gastropods have peristomes.

Do all plants have Rhizoids?

Rhizoids develop on the gametophytes of some land plants (liverworts, mosses, hornworts, lycophytes and monilophytes). Root hairs are found only on the roots of the sporophytes of vascular plants. All other land plants develop unicellular rhizoids and root hairs.

Which plant is a moss?

Botanically, mosses are non-vascular plants in the land plant division Bryophyta. They are small (a few centimeters tall) herbaceous (non-woody) plants that absorb water and nutrients mainly through their leaves and harvest carbon dioxide and sunlight to create food by photosynthesis.

Is elaters present in riccia?

Explanation: It is common fact that bryophytes have elaters. Among the species given in the options, Riccia, Anthoceros, and Marchantia are bryophytes whereas Funaria is a moss. Mosses are devoid of elaters, a long tube like structure which facilitates spore release in liverworts.

Are Hornworts elaters?

Mosses and hornworts Mosses lack elaters. Within a developing hornwort sporophyte the developing spores are mixed with sterile cells of varying form.

What is Nematodontous?

In mosses, the peristome is a specialized structure in the sporangium that allows for gradual spore discharge, instead of releasing them all at once. In other groups of mosses, the capsule is either nematodontous with an attached operculum (as in the Polytrichopsida), or else splits open without operculum or teeth.

Are rhizoids Haploids or Diploids?

Rhizoids develop in the haploid phase of some of the streptophyte algae, such as Chara (Charophytales) and Spirogyra (Zygnematales), but not in others such as the Coleochaetales (Lewis and McCourt, 2004). Rhizoids are unicellular in the Zygnematales and multicellular in the Charales.

Do all plants have Sporangia?

A sporangium (plural: sporangia) is the capsule structure belonging to many plants and fungi, in which the reproductive spores are produced and stored. All land plants undergo an alteration of generations to reproduce; the sporangium is borne upon the sporophyte, which is the asexual second generation structure.

What does An elater do in a plant?

Elaters come in a variety of forms, but are always associated with plant spores. In many plants that do not have seeds, they function in dispersing the spores to a new location. Mosses do not have elaters, but peristome which also change shape with changes in humidity or moisture to allow for a gradual release of spores.

What does Elater mean in Merriam-Webster Dictionary?

“Elater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/elater. Accessed 17 Jul. 2021. What does ‘poke’ refer to in the expression ‘pig in a poke’? Test your visual vocabulary with our 10-question challenge! Anagram puzzles meet word search. Love words? Need even more definitions?

What is the role of elaters in bryophytes?

A tiny elongated structure that helps disperse plant spores by coiling and uncoiling in response to changes in humidity. The elaters of horsetails are bands attached to the spore wall, while those of liverworts are sterile cells occurring among the spores.