Author: Huttunen, Sanna

Source: Journal of Bryology, Volume 25, Number 1, March 2003 , pp. 41-47(7)

Publisher: Maney Publishing

Abstract:

The reproduction of Pohlia nutans (Hedw.) Lindb. and Pleurozium schreberi (Brid.) Mitt. were compared in the surroundings of copper smelters at Harjavalta, Finland. Samples of both species were collected from 16 sample plots, which were situated on a 12-km transect at intervals of half a kilometre from the smelters. As a result of pollution the production of gametangia decreased in P. schreberi, and near the smelters most of the shoots were sterile. The biomass of shoots seems to have an effect on the production of perichaetia; reproducing females were always the largest ones in the colonies. The reproductive strategy of Pohlia nutans also varied. While, in moderately clean areas, colonies reproduced sexually and formed sporophytes, in the vicinity of the smelters caducous shoot apices were produced. The numbers of sporophytes in colonies were highest in moderately polluted areas and decreased further away from the smelters. The numbers of spores per capsule in P. nutans decreased at polluted sites and the proportion of aborted spores increased.

Keywords: REPRODUCTION; POHLIA NUTANS; SO2 POLLUTION; PLEUROZIUM SCHREBERI; FINLAND; COPPER POLLUTION

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/037366803125002644

Publication date: 2003-03-01

More about this publication?

• Journal of Bryology is Maney's Journal of the Month for February! For the entire month, we're giving away 3 year's worth of content absolutely FREE! Visit the Journal of the Month page to sign up for this free content, meet the editors, watch videos, read about hot topics in the field, find out more about the British Bryological Association, get discounts on subscriptions and much, much more!

  Online submission, tracking and refereeing system now live. Click here for further information

• Editorial Board
• Information for Authors
• Submit a Paper
• Subscribe to this Title
• Membership Information
• Information for Advertisers
• Terms & Conditions
• Other botany titles from Maney
• Top articles
• MORE Open Choice
• ingentaconnect is not responsible for the content or availability of external websites

Related content

• In this: publication
• By this: publisher
• In this Subject: Botany
• By this author: Huttunen, Sanna

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers