Gravitropism and phototropism in protonemata of the moss Pohlia nutans (HEDW.) lindb.

Details Gravitropism and phototropism in protonemata of the moss Pohlia nutans (HEDW.) lindb. Gravitropism and phototropism in protonemata of the moss Pohlia nutans (HEDW.) lindb.

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999adspr..23.1999d&link_type=abstract

Advances in Space Research, Volume 23, Issue 12, p. 1999-2004.

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Scientific paper

The gravitropism of protonemata of Pohlia nutans is described and compared with that of other mosses. In darkness, protonemata showed negative gravitropism. Under uniform illumination they grew radially over the substrate surface, whereas unilateral illumination induced positive phototropic growth. Gravitropism was coupled with starch synthesis and amyloplast formation. Protonematal gravitropic growth is more variable than the strict negative gravitropism of Ceratodon chloronema.

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