Allelopathic interactions among Anabaena torulosa (Cyanoprokaryota) and other algae isolated from lake Neusiedlersee (Austria)

2001 ◽  
Vol 103 ◽  
pp. 117-130
Author(s):  
Michael Schagerl ◽  
Iris Unterrieder ◽  
David G. Angeler
Keyword(s):  
Allelopathic Interactions

scholarly journals Ecological Aspects of Allelopathic Interactions of Energy Crops

2021 ◽  
Vol 22 (10) ◽  
pp. 185-191
Author(s):  
Halyna Moskalyk ◽  
Uliana Leheta ◽  
Alina Zhuk ◽  
Olena Boruk ◽  
Mariia Fedoriak
Keyword(s):  
Energy Crops ◽  
Ecological Aspects ◽  
Allelopathic Interactions

The Use of Allelopathic Interactions as a Laboratory Exercise

1985 ◽  
Vol 47 (2) ◽  
pp. 105-106
Author(s):  
Wm. H. Sharp ◽  
T. M. Dolman
Keyword(s):  
Laboratory Exercise ◽  
Allelopathic Interactions

scholarly journals Allelopathic interactions of linoleic acid and nitric oxide increase the competitive ability of Microcystis aeruginosa

2017 ◽  
Vol 11 (8) ◽  
pp. 1865-1876 ◽  
Author(s):  
Hao Song ◽  
Michel Lavoie ◽  
Xiaoji Fan ◽  
Hana Tan ◽  
Guangfu Liu ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Linoleic Acid ◽  
Microcystis Aeruginosa ◽  
Competitive Ability ◽  
Allelopathic Interactions

Factors affecting the germination of Giant Parramatta grass

1997 ◽  
Vol 37 (4) ◽  
pp. 439 ◽  
Author(s):  
T. S. Andrews ◽  
C. E. Jones ◽  
R. D. B. Whalley
Keyword(s):  
Leaf Extract ◽  
New South ◽  
New South Wales ◽  
North Coast ◽  
Factors Affecting ◽  
The North ◽  
South Wales ◽  
Seed Fall ◽  
Allelopathic Interactions ◽  
And Control

Summary. Four experiments were conducted to determine the effects of temperature, light and leaf extract solutions on the germination of Giant Parramatta grass [GPG, Sporobolus indicus (L.) R. Br. var. major (Buse) Baaijens] collected from a population on the North Coast of New South Wales. In the first experiment, seeds were subjected to one of a range of temperature combinations immediately after collection and again after 8 and 27 weeks. Germination was restricted to a narrow range of alternating temperatures with a peak at 35°C day/15°C night when seeds were tested immediately after collection. More seeds germinated when the samples had been stored, although germination remained depressed at constant temperatures. These data indicate that freshly collected GPG seeds are subject to primary dormancy and that few would germinate in the field immediately after seed fall. In a second experiment, seeds were buried beneath leaf litter in a pasture immediately after collection. After 7 months, the seeds were exhumed and subjected to either constant (20°C) or alternating (35/15°C) temperatures in either full light, reduced red:far-red (R : FR) light or dark treatments. Over 95% of GPG seeds germinated when subjected to alternating temperatures, regardless of light treatment. At constant temperatures, 97% of seeds germinated under full light, 59% at reduced R : FR light and <1% in dark treatments. A germination response to alternating temperatures and/or light treatments has been reported in pasture weeds and may be an adaptation to detecting gaps in the pasture canopy. Consequently, the germination of GPG in a pasture may be manipulated to some extent by altering the amount of pasture cover using grazing management, mowing and fertiliser applications. In experiment 3, leaves from a range of coastal grasses were mixed with water and the solutions were used to germinate GPG seeds. Solutions extracted from setaria (Setaria sphacelata) leaves completely inhibited GPG germination while 27% of GPG seeds germinated when imbibed with kikuyu leaf extract solution. Solution extracted from carpet grass (Axonopus affinis) leaves had the least effect on GPG germination. In experiment 4, the effects of solutions that had been leached from the leaves of either setaria or carpet grass on seed germination, and root and shoot lengths of GPG seedlings were compared. Germination was less inhibited by leachate solutions compared with the extract solutions used in experiment 3. Seedlings in setaria leachates had significantly shorter roots and shoots than both those germinated in carpet grass leachates and control seedlings. This may explain, at least in part, why carpet-grass-based pastures are readily infested with GPG while setaria-based pastures are relatively resistant to infestation. The potential for allelopathic interactions between GPG and setaria to be fully utilised to reduce the abundance of GPG in coastal New South Wales pastures is discussed.

Ecological service providing crops effect on melon-weed competition and allelopathic interactions

2015 ◽  
Vol 5 (3) ◽  
pp. 199-207 ◽  
Author(s):  
C. Ciaccia ◽  
E. Testani ◽  
G. Campanelli ◽  
S. Sestili ◽  
F. Leteo ◽  
...  
Keyword(s):  
Weed Competition ◽  
Ecological Service ◽  
Allelopathic Interactions

DENSITY-DEPENDENT EFFECTS ON ALLELOPATHIC INTERACTIONS IN YEAST

Evolution ◽  
2008 ◽  
Vol 62 (3) ◽  
pp. 521-527 ◽  
Author(s):  
Duncan Greig ◽  
Michael Travisano
Keyword(s):  
Density Dependent ◽  
Allelopathic Interactions
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