Abstract
Abstract The origin of amino-acid nitrogen in developing leaves was investigated by using UN as a tracer. The amino acid nitrogen in free and bound forms consisted of newly-distributed and retranslocated nitrogen. Amounts of glutamic acid, aspartic acid, and alanine were relatively dependent upon the newly-absorbed (distributed) nitrogen and, on the contrary, arginine, lysine, proline, and valine were dependent on the retranslocated nitrogen. Nitrate seemed not to be retranslocated after it was once distributed in a leaf, and some of it was stored in the old leaves in unchanged form.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.