Responses of Mikania micrantha, an Invasive Weed to Elevated CO2: Induction of β-Caryophyllene Synthase, Changes in Emission Capability and Allelopathic Potential of β-Caryophyllene

2010 ◽  
Vol 36 (10) ◽  
pp. 1076-1082 ◽  
Author(s):  
Rui-Long Wang ◽  
Christian Staehelin ◽  
Shao-Lin Peng ◽  
Wen-Tian Wang ◽  
Xi-Mei Xie ◽  
...  
Keyword(s):  
Elevated Co2 ◽  
Invasive Weed ◽  
Allelopathic Potential ◽  
Mikania Micrantha

scholarly journals Elevated CO2 Concentrations and Water Stress Affect the Ability of Italian Ryegrass to Remediate Herbicides and Enhance its Allelopathic Effect

2019 ◽  
Vol 37 ◽  
Author(s):  
L.P. SILVEIRA ◽  
A.R. FEIJÓ ◽  
C. BENETTI ◽  
J.P. REFATTI ◽  
M.V. FIPKE ◽  
...  
Keyword(s):  
Water Stress ◽  
Elevated Co2 ◽  
Co2 Concentration ◽  
Italian Ryegrass ◽  
Allelopathic Effect ◽  
Irrigated Rice ◽  
Allelopathic Potential ◽  
Co2 Concentrations ◽  
Temporal Persistence ◽  
The Impact

ABSTRACT: The long temporal persistence of select herbicides negatively impacts crops sown in succession to irrigated rice. One way to reduce these compounds in the soil over time is through phytoremediation. However, elevated CO2 concentrations may interfere with the phytoremediation process. Another consequence of climate change is the production of allelopathic compounds by forage species used as remedial agents. This study aimed to evaluate the impact of elevated CO2 concentration and drought stress on the remediation of soil samples contaminated with imazapyr + imazapic herbicides by Italian ryegrass and any subsequential affect on the allelopathic effect of this species. We report that the increasing CO2 decreased the phytoremediation potential of ryegrass. Water stress combined with a CO2 concentration of 700 µmol mol-1 caused increased allelopathy. Overall, these are the first data to indicate a significant effect of higher CO2 levels with respect to both phytoremediation efficacy and allelopathic potential of the plant species used in phytoremediation.

scholarly journals A study on the ecology and economic impact of major invasive weed species of coconut homesteads of Nattika, India

2014 ◽  
Vol 1 (1) ◽  
pp. 32-35
Author(s):  
ES Abhilash ◽  
Sheeja P Parayil ◽  
Brijesh Sathian ◽  
AR Raju ◽  
NA Bilal ◽  
...  
Keyword(s):  
Invasive Species ◽  
Weed Management ◽  
Management Strategy ◽  
Alien Invasive Species ◽  
Chromolaena Odorata ◽  
Weed Species ◽  
Invasive Weed ◽  
Mikania Micrantha ◽  
Medium Risk ◽  
Genetic Aberration

Out of the 4 alien invasive species three are of high risk namely Mikania micrantha, Chromolaena odorata and Mimosa diplotricha. Lantana camara is found to be medium risk. The farmers spent a considerable amount of money nearly Rs 4800 per year for one acre land pertaining to mechanical weeding of invasive species. The herbicide is widely used by farmers to control the weeds are capable to cause various health problems including genetic aberration. So an effective and comprehensive weed management strategy have to be developed in the country to combat the threats of IAS in agriculture fields. DOI: http://dx.doi.org/10.3126/apjeesd.v1i1.9509Asia Pacific Journal of Environment Ecology and Sustainable Development 2013; 1: 32-35

Assessment of Allelopathic Potential of Wedelia trilobata on the Germination, Seedling Growth and Chlorophyll Content of Rape

2013 ◽  
Vol 807-809 ◽  
pp. 719-722 ◽  
Author(s):  
Zhong Hua Zhang ◽  
Bao Qing Hu ◽  
Gang Hu
Keyword(s):  
Chlorophyll Content ◽  
Petri Dish ◽  
Inhibitory Effect ◽  
Aqueous Extracts ◽  
Total Chlorophyll ◽  
Invasive Weed ◽  
Crop Species ◽  
Allelopathic Potential ◽  
Wedelia Trilobata ◽  
Total Chlorophyll Content

Wedelia trilobata(L.) Hitche is a widespread alien invasive weed in south China and has been reported to show allelopathic potential causing biological suppression on some plants. In this study, the allelopathic effects of aqueous extracts from the leaves ofW. trilobatawere tested on the seed germination, shoot growth and total chlorophyll content of rape (Brassica campestrisL.) using Petri dish bioassay. The results showed that the aqueous extracts at the concentration from 25% to 100% caused a significant reduction in the germination percentage, shoot length and total chlorophyll content of rape. This inhibitory effect was concentration-dependent. These results suggested there was a strong potential phytotoxic effect ofW. trilobataon rape andthis effect might reduce the production of some crop species.

Development and characterization of EST-SSR markers in the invasive weed Mikania micrantha (Asteraceae)

2010 ◽  
Vol 98 (1) ◽  
pp. e1-e3 ◽  
Author(s):  
Y. Yan ◽  
Y. Huang ◽  
X. Fang ◽  
L. Lu ◽  
R. Zhou ◽  
...  
Keyword(s):  
Ssr Markers ◽  
Invasive Weed ◽  
Mikania Micrantha
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