Abstract
Sarcosine and methionine sulfoxide were investigated in several wild or laboratory-reared symbiotic and aposymbiotic strains of Sitophilus oryzae and S. zeamais. The amino acid composition of fourth-instar larvae indicated that a high level in sarcosine found together with a low level of methionine sulfoxide were biochemical characteristics of the aposymbiotic state in this genus. Nutritional experiments demonstrated that the synthesis of these two amino acids depended on dietary precursors. Since sarcosine and methionine sulfoxide are both methionine derivatives, it is therefore suggested that methionine metabolism in Sitophilus larvae might differ according to the presence or the absence of the symbiotic bacteria.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
