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macrospore

   Also found in: Medical, Encyclopedia, Wikipedia 0.03 sec.
mac·ro·spore  (mkr-spôr, -spr)
n.
See megaspore.

macrospore [ˈmækrəʊˌspɔː]
n
(Life Sciences & Allied Applications / Botany) another name for megaspore [1]
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.macrospore - larger of the two types of spore produced in heterosporous plantsmacrospore - larger of the two types of spore produced in heterosporous plants; develops in ovule into a female gametophyte
spore - a small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion; "a sexual spore is formed after the fusion of gametes"


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Individual wet clay particles are slippery, slide together, pack densely and close in the macrospores of the soil that are needed for aeration and drainage.
Besides colloalginite and sorbocolloalginite, single components of vitrinite, fusinite, as well as fragments of yellowish-orange macrospores are present.
There is an increasing evidence that portions of the water infiltrating through the soil surface may move rapidly through the aeration zone along preferred flow paths such as macrospores and fractures.
 
 
 
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