Amino acid and cockroach

Views:
 
Category: Entertainment
     
 

Presentation Description

No description available.

Comments

Presentation Transcript

cockroach:

cockroach Eman youssif

Amino acid and cockroach:

Amino acid and cockroach 1. Free amino acids of the hemolymph of the American cockroach,  Periplaneta americana , were determined quantitatively by the column chromatographic method of Moore, Spackman , and Stein. 2. 2. Sixteen amino acids [aspartic acid, threonine, serine, glutamic acid, proline , glycine, alanine, valine , methionine (and methionine sulfoxide ), isoleucine, leucine , tyrosine, phenylalanine, lysine, histidine , arginine] were present in the high concentrations characteristic of insect hemolymph . 3. 3. Taurine was also present in low concentration. Cystine was consistently absent. 4. 4. Total concentrations were comparable with those of other relatively primitive insects (e.g. walking-stick and dragonfly) but were only one-third to one-half those of holometabolous insects (e.g. silkworm and honeybee). 5. 5. The data suggest that individual and total amino acid concentrations are not closely regulated in this insect .

The concentrations of free amino acids in the hemolymph of adult males of the cockroach Blaberus discoidalis were determined by automated amino acid analysis. Eighteen of the twenty standard amino acids as well as two nonstandard amino acids (hydroxyproline and ornithine) were found. Aspartic acid and cysteine were not present. Proline levels were up to 100-fold higher than those of any other amino acid. Total amino acid concentration was comparable to those reported for most other cockroaches. The reported amino acid profile formed the basis for an organ culture medium which sustained metabolic viability of isolated B. discoidalis neuroendocrine glands and brain-gland complexes for at least 24 hr.:

The concentrations of free amino acids in the hemolymph of adult males of the cockroach  Blaberus discoidalis  were determined by automated amino acid analysis. Eighteen of the twenty standard amino acids as well as two nonstandard amino acids ( hydroxyproline and ornithine) were found. Aspartic acid and cysteine were not present. Proline levels were up to 100-fold higher than those of any other amino acid. Total amino acid concentration was comparable to those reported for most other cockroaches. The reported amino acid profile formed the basis for an organ culture medium which sustained metabolic viability of isolated  B. discoidalis  neuroendocrine glands and brain-gland complexes for at least 24 hr .

the concentrations of free amino acids in the hemolymph of adult males of the cockroach Blaberus discoidalis were determined by automated amino acid analysis. Eighteen of the twenty standard amino acids as well as two nonstandard amino acids (hydroxyproline and ornithine) were found. Aspartic acid and cysteine were not present. Proline levels were up to 100-fold higher than those of any other amino acid. Total amino acid concentration was comparable to those reported for most other cockroaches. The reported amino acid profile formed the basis for an organ culture medium which sustained metabolic viability of isolated B. discoidalis neuroendocrine glands and brain-gland complexes for at least 24 hr.:

the concentrations of free amino acids in the hemolymph of adult males of the cockroach Blaberus discoidalis were determined by automated amino acid analysis. Eighteen of the twenty standard amino acids as well as two nonstandard amino acids ( hydroxyproline and ornithine) were found. Aspartic acid and cysteine were not present. Proline levels were up to 100-fold higher than those of any other amino acid. Total amino acid concentration was comparable to those reported for most other cockroaches. The reported amino acid profile formed the basis for an organ culture medium which sustained metabolic viability of isolated B. discoidalis neuroendocrine glands and brain-gland complexes for at least 24 hr.

References::

References: http://alfetn.com/vb3/showthread.php?t=64497&page=2 http://ar.wikipedia.org/wiki/%D8%B9%D9%84%D9%85_%D8%A7%D9%84%D8%B5%D9%88%D8%AA%D9%8A%D8%A7%D8%AA_%D8%A7%D9%84%D8%AD%D9%8A%D9%88%D9%8A%D8%A9 http://www.jazan.org/vb/archive/index.php/t-176645.html

http://www.sciencedirect.com/science/article/pii/0010406X61900172 http://www.sciencedirect.com/science/article/pii/0300962995020438 http://www.researchgate.net/publication/14575464_Free_amino_acids_in_t he_hemolymph_of_the_cockroach_Blaberus_discoidalis http://en.wikipedia.org/wiki/Blaberus_giganteus http://books.google.com.eg/books?id=s_ljXPrdIKsC&pg=PA83&lpg=PA83&dq=cockroach+amino+acids&source=bl&ots=gev9bCSsWG&sig=pcKzNvPZmJso7wC5k_Ees1nWwg0&hl=en&sa=X&ei=T2GZU9KPFYWUPKjRgIAF&redir_esc=y#v=onepage&q=cockroach%20amino%20acids&f=false http://cvi.asm.org/content/11/5/874.abstract :

http://www.sciencedirect.com/science/article/pii/0010406X61900172 http://www.sciencedirect.com/science/article/pii/0300962995020438 http://www.researchgate.net/publication/14575464_Free_amino_acids_in_t he_hemolymph_of_the_cockroach_Blaberus_discoidalis http://en.wikipedia.org/wiki/Blaberus_giganteus http://books.google.com.eg/books?id=s_ljXPrdIKsC&pg=PA83&lpg=PA83&dq=cockroach+amino+acids&source=bl&ots=gev9bCSsWG&sig=pcKzNvPZmJso7wC5k_Ees1nWwg0&hl=en&sa=X&ei=T2GZU9KPFYWUPKjRgIAF&redir_esc=y#v=onepage&q=cockroach%20amino%20acids&f=false http://cvi.asm.org/content/11/5/874.abstract

http://books.google.com.eg/books?id=7JCsYtH-VcYC&pg=PA157&lpg=PA157&dq=cockroach+amino+acids&source=bl&ots=hVNYsG5Ycc&sig=IRX-vdao3IrUDXWcDMIp4_aLk6s&hl=en&sa=X&ei=T2GZU9KPFYWUPKjRgIAF&redir_esc=y#v=onepage&q=cockroach%20amino%20acids&f=false :

http://books.google.com.eg/books?id=7JCsYtH-VcYC&pg=PA157&lpg=PA157&dq=cockroach+amino+acids&source=bl&ots=hVNYsG5Ycc&sig=IRX-vdao3IrUDXWcDMIp4_aLk6s&hl=en&sa=X&ei=T2GZU9KPFYWUPKjRgIAF&redir_esc=y#v=onepage&q=cockroach%20amino%20acids&f=false

link:

link http://www.bio.umass.edu/biology/kunkel/cockroach_faq.html

authorStream Live Help