Definitions for hydathode
ˈhaɪ dəˌθoʊdhy·dath·ode

Princeton's WordNetRate this definition:0.0 / 0 votes

1. hydathode, water pore, water stomanoun

   a pore that exudes water on the surface or margin of a leaf of higher plants

WiktionaryRate this definition:3.7 / 3 votes

1. hydathodenoun

   A tissue, in the leaves of many plants, that contains microscopic pores through which water is excreted.

WikipediaRate this definition:0.0 / 0 votes

1. Hydathode

   A hydathode is a type of pore, commonly found in angiosperms, that secretes water through pores in the epidermis or leaf margin, typically at the tip of a marginal tooth or serration. Hydathodes occur in the leaves of submerged aquatic plants such as Ranunculus fluitans as well as herbaceous plants of drier habitats such as Campanula rotundifolia. They are connected to the plant vascular system by a vascular bundle. Hydathodes are commonly seen in water lettuce, water hyacinth, rose, balsam, and many other species. Hydathodes are made of a group of living cells with numerous intercellular spaces filled with water, but few or no chloroplasts, and represent modified bundle-ends. These cells (called epithem cells) open out into one or more sub-epidermal chambers. These, in turn, communicate with the exterior through an open water stoma or open pore. The water stoma structurally resembles an ordinary stoma, but is usually larger and has lost the power of movement. Hydathodes are involved in the process of guttation, in which positive xylem pressure (due to root pressure) causes liquid to exude from the pores. Some halophytes possess glandular trichomes that actively secrete salt in order to reduce the concentration of cytotoxic inorganic ions in their cytoplasm; this may lead to the formation of a white powdery substance on the surface of the leaf.

ChatGPTRate this definition:0.0 / 0 votes

1. hydathode

   A hydathode is a specialized tissue in the leaves of vascular plants that facilitates the process of exuding or secreting excess water and dissolved substances, a phenomenon known as guttation. They are typically located at the leaf margins or the tips of the leaves.

WikidataRate this definition:3.0 / 1 vote

1. Hydathode

   A hydathode is a type of secretory tissue in leaves, usually of Angiosperms, that secretes water through pores in the epidermis or margin of leaves, typically at the tip of a marginal tooth or serration. They probably evolved from modified stomata. It is involved in guttation, where water is released from the top in order to transport the nutrients in the water from the roots to the leaves. Hydathodes are connected to the plant vascular system by a vascular bundle. Since the liquid being extruded is from the xylem it also contains salts, sugars, and organic compounds dissolved in water and this is sometimes seen to crystallize on evaporation, forming a white powdery substance on the leafs edge. This crystallisation is very obvious in halophytes, plants adapted to live in high salt environments, and consequently the hydathodes are known as salt glands in those species. Hydathodes are special structures through which exudation of water takes place in liquid form.They are mainly found in aquatic plants and in some herbaceous plants growing in moist places. They occur at the apices of the veins at the tips of the leaves or on their margins. Hydathodes are made of a group of living cells with numerous intercellular spaces filled with water, but few or no chloroplasts. They represents modified bundle-ends. These cells called EPITHEM cells open out into one or more sub-epidermal chambers. These, in turn, сommunicate with the exterior through an open water stomata or open pore. The water stoma structurally resembles an ordinary stoma, but is usually larger and has lost the power of movement. Hydathodes are commonly seen in water lettuce, water hyacinth, rose, balsam, and many other species.

Matched Categories

1. • Stoma

How to pronounce hydathode?

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How to say hydathode in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of hydathode in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of hydathode in Pythagorean Numerology is: 9

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=hydathode
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Hydathode
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Hydathode
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=hydathode