ABSTRACT
OBJECTIVE: To investigate the distribution and host plants of Cynomorium songaricum, and provide a scientific basis for the artificial cultivation of C. songaricum and protect the ecological environment in the sandy area. METHOD: Specimens of C. songaricum in growing area was collected and accessed according to relevant literature and identified. RESULT: The results showed that a new host plant of C. songaricum-Peganum multisectum was found. CONCLUSION: A new host plant of C. songaricum, Peganum multisectum was reported, and it is provide the necessary nutrition for normal growth of C. songaricum.
Subject(s)
Cynomorium/physiology , Peganum/physiology , China , Cynomorium/anatomy & histology , Ecosystem , Peganum/anatomy & histologyABSTRACT
The leaf extract and its fractions of Peganum harmala L. have shown pronounced mortal effect, decreased percent pupation and adult emergence of the cotton leaf worm, Spodoptera littoralis Boisd. The third instar larvae fed for two days on treated leaves were more susceptible to plant extract and its ethyl acetate and chloroform fractions. The active lowest concentration (5%) of the leaf fractions of P. harmala showed significant effect on the percentage of emerged adult parasitoids, Microplitis rufiventris Kok. GC/MS analysis showed the major constituent in ethyl acetate fraction was (23S) ethylcholest-5-en-3 beta-ol (28.04%) while those of chloroform fraction were hydroxyfuranocoumarin (Bergaptol) (15.68%), piperidinone (12.08%), thymol (11.82%), phosphoric acid, tributyl ester (9.80%) and trimethyl-nonenol (9.66%). The medicinal plant P. harmala could be carefully applied in integrated pest management due to its strong effect on cotton leaf worm pest.
Subject(s)
Peganum/chemistry , Peganum/toxicity , Plant Extracts , Plant Leaves , Spodoptera , Wasps/drug effects , Animals , Female , Male , Peganum/anatomy & histology , Plant Extracts/chemistry , Plant Extracts/toxicity , Plant Leaves/chemistry , Plant Leaves/toxicity , Spodoptera/drug effects , Spodoptera/parasitology , Wasps/pathogenicityABSTRACT
This paper reports the micromorphological features of the leave, pollen grains, petals and seeds of 3 species of medicinal plants of Genus Peganum. The results can supply basis for the identification of the medicinal material.
