Adventitious sprouting enables the invasive annual herb Euphorbia geniculata to regenerate after severe injury

0385095 - BÚ 2013 RIV JP eng J - Journal Article
Malíková, Lenka - Mudrák, Ondřej - Klimešová, Jitka
Adventitious sprouting enables the invasive annual herb Euphorbia geniculata to regenerate after severe injury.
Ecological Research. Roč. 27, č. 5 (2012), 841-847. ISSN 0912-3814. E-ISSN 1440-1703
R&D Projects: GA ČR GD206/08/H044; GA ČR GPP504/12/P540
Institutional research plan: CEZ:AV0Z60050516
Institutional support: RVO:67985939
Keywords : arable weed * mechanical control * potential bud bank
Subject RIV: EF - Botanics
Impact factor: 1.552, year: 2012

Euphorbia geniculata, an annual weed of arable land native to America and invasive in subtropical and tropical regions, is able to regenerate from seeds and is also able to produce adventitious buds on the hypocotyl. Whether sprouting from adventitious buds represents a mechanism for surviving severe injury, and whether this ability is crucial for species invasion is, however, not known. The significance of such sprouting was investigated with a field survey and a pot experiment. Among 897 plants in 25 field populations surveyed in Indonesia, only a few exhibited marks of injury and sprouting from adventitious buds. When seeds were collected from 12 of the populations and used in a pot experiment, however, the seedlings were able to survive severe injury (removal of all tissue above the hypocotyl) by sprouting from adventitious buds on the hypocotyl and were able to set seed, although they produced less vegetative and generative biomass than control plants.
Permanent Link: http://hdl.handle.net/11104/0214484