Effect of smoke treatment of plant Peganum harmala on the mortality of pest Rhizopertha dominica (Fab.) (Coleoptera: Bostrichiadae)

2012 ◽  
Vol 2 (12) ◽  
pp. 564-565
Author(s):  
Amandeep kaur Mann ◽  
◽  
MEERA SRIVASTAVA
2018 ◽  
Vol 51 (2) ◽  
Author(s):  
A.S Seilkhan ◽  
N.O Kudrina ◽  
N.V Cherepkova ◽  
T.E Kulmanov ◽  
M.S Kurmanbayeva ◽  
...  

2019 ◽  
Vol 20 (13) ◽  
pp. 1134-1146
Author(s):  
Magda E. Abd-Elgawad ◽  
Modhi O. Alotaibi

Background:The vernacular name 'Harmal' is used for two plant species in Saudi Arabia, i.e. Peganum harmala L. and Rhazya stricta Decne. Both are important medicinal plants which offer interesting pharmacological properties.Objective:This study aimed to evaluate the genetic diversity among different populations of harmal based on chemical variations of alkaloids and molecular polymorphism.Methods:Total alkaloids were extracted from plants of three populations of each species and estimated by using spectrophotometer and the chemical compounds were analyzed by Gas chromatography mass spectrometry (GC-MS). Molecular polymorphism was estimated by using the Inter Simple Sequence Repeat (ISSR) fingerprints.Results:The results showed that the alkaloids content of R. stricta was higher than P. harmala populations. The GC-MS analysis revealed the presence of (65-53) compounds in R. stricta and P. harmala, and the percentage of polymorphism was found to be 93.2%. Sixteen ISSR primers produced 170 scorable bands with an average of 9.6 bands per primer and 75%-100% polymorphism. The cluster analysis using the unweighted pair-group method of the arithmetic average (UPGMA) method based on combined data of GC-MS and ISSR markers divided the six harmal genotypes into two major groups.Conclusion:The existence of variations in chemical and genetic markers is useful for the selection of potential genotypes for medicinal use, and for breeding lines for medicinal substances production to spare wild plants from uncontrolled harvesting for folk medicine.


ACS Omega ◽  
2021 ◽  
Author(s):  
Sherif Ashraf Fahmy ◽  
Marwa Y. Issa ◽  
Basma M. Saleh ◽  
Meselhy Ragab Meselhy ◽  
Hassan Mohamed El-Said Azzazy

2021 ◽  
Vol 194 (1) ◽  
Author(s):  
Fereshteh Filban ◽  
Maryam Ravanbakhsh ◽  
Ali Poormohammadi ◽  
Soheila Khaghani ◽  
Batool Sadeghi-Nejad ◽  
...  

1934 ◽  
Vol s2-77 (306) ◽  
pp. 243-253
Author(s):  
K. MANSOUR

1. Rhizopertha dominica, F., Sinoxylon ceratoniae, L., and Bostrychoplites Zickeli, Mars., possess paired mycetomes full of bacteria-like micro-organisms. 2. The transmission of the micro-organisms from one generation of the host to the next is carried out in the following way: (a) Micro-organisms from the mycetomes invade the testis lobes, multiply, and mix with the sperms. (b) These micro-organisms pass with the sperms during copulation into the bursa copulatrix of the female. (c) From this region they pass through the micropyle of the fully formed eggs during their passage to the outside, and thus the infection is accomplished. 3. The invasion of the testis lobes by micro-organisms causes abnormality in the process of spermatogenesis. 4. The micro-organisms in the developing egg are first seen near the micropylar region in the peripheral protoplasm. In a later stage these micro-organisms, which have multiplied greatly by then, are to be found in between the yolk globules towards the posterior pole of the egg. From this stage onwards the course these micro-organisms follow till they reach their final destination in the larva has not been followed. 5. The mycetomes throughout life remain quite isolated from the alimentary tract. 6. The biological relation between the micro-organisms and their host is also discussed.


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