Economics of Noxious Weeds and Poisonous Plants 1

2021 ◽  
pp. 442-458
Author(s):  
Ed Frandsen ◽  
Deen Boe
2017 ◽  
Vol 23 (2) ◽  
Author(s):  
SANJAY A. KHAIRNAR

In modern era about 80% of the world population depends on herbal alternative system of medicine. Seventy thousand plants are used in medicine and about 2000 plants are used in Indian Ayurveda. The activities of the curative plants are evaluated by their chemical components. Few of them are important as a medicine but also posses poisonous or toxic properties. The toxicity is produced in them due to the synthesis of toxic chemical compounds may be in primary or secondary phase of their life. Most of the users of such medicinal plants in crude form are tribal and peoples living in the forests and their domestic stock . Most of the time these peoples may not aware about the toxicity of such plants used by them and probably get affected sometimes even leads to death. In the study area during the field survey of poisonous plants, information are gathered from the traditional practicing persons, cow boy and from shepherds. About 20 plant species belonging to 17 families are reported as a medicinal as well as toxic. From the available literature, nature of toxic compound and symptoms of their intake on human being are recorded. In the study area the plants like, Abrus precatorious commonly known as a Gunj or Gunjpala, Jatropha curcas , (Biodiesel plant), Croton tiglium (Jamalgota), Citrullus colocynthis (Kadu Indrawan, Girardinia diversifolia (Agya), Mucuna purriens (Khajkuairi), Euphorbia tirucali (Sher), E. ligularia (Sabarkand), Datura metel ( Kala Dhotara), Datura inoxia (Pandhara Dhotara) and Asparagus racemo-sus (Shatavari) etc . are some of the toxic plants used as a medicine and harmful also.


2000 ◽  
Vol 13 (2) ◽  
pp. 125-129
Author(s):  
Cynthia H. Holmes
Keyword(s):  

1936 ◽  
Vol 36 (6) ◽  
pp. 581-587
Author(s):  
Victor Lewitus
Keyword(s):  

1978 ◽  
Vol 15 (6) ◽  
pp. 788-789
Author(s):  
J. P. Dubey ◽  
W. C. Edwards
Keyword(s):  

1893 ◽  
Vol 36 (916supp) ◽  
pp. 14644-14646
Author(s):  
J. Guardia
Keyword(s):  

Nature ◽  
1898 ◽  
Vol 58 (1512) ◽  
pp. 597-597
Author(s):  
EDWARD M. LANGLEY
Keyword(s):  

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Expedito K. A. Camboim ◽  
Arthur P. Almeida ◽  
Michelle Z. Tadra-Sfeir ◽  
Felício G. Junior ◽  
Paulo P. Andrade ◽  
...  

The objective of this paper was to report the isolation of two fluoroacetate degrading bacteria from the rumen of goats. The animals were adult goats, males, crossbred, with rumen fistula, fed with hay, and native pasture. The rumen fluid was obtained through the rumen fistula and immediately was inoculated 100 μL in mineral medium added with 20 mmol L−1sodium fluoroacetate (SF), incubated at 39°C in an orbital shaker.Pseudomonas fluorescens(strain DSM 8341) was used as positive control for fluoroacetate dehalogenase activity. Two isolates were identified by 16S rRNA gene sequencing asPigmentiphaga kullae(ECPB08) andAncylobacter dichloromethanicus(ECPB09). These bacteria degraded sodium fluoroacetate, releasing 20 mmol L−1of fluoride ion after 32 hours of incubation in Brunner medium containing 20 mmol L−1of SF. There are no previous reports of fluoroacetate dehalogenase activity forP. kullaeandA. dichloromethanicus. Control measures to prevent plant intoxication, including use of fences, herbicides, or other methods of eliminating poisonous plants, have been unsuccessful to avoid poisoning by fluoroacetate containing plants in Brazil. In this way,P. kullaeandA. dichloromethanicusmay be used to colonize the rumen of susceptible animals to avoid intoxication by fluoroacetate containing plants.


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