Changes in nitrogen contents and in proteolytic activities in different parts of field-grown wheat ears (Triticum aestivum L.) during maturation

Feller, Urs (1978). Changes in nitrogen contents and in proteolytic activities in different parts of field-grown wheat ears (Triticum aestivum L.) during maturation. Plant and Cell Physiology, 19(8), pp. 1489-1495. Oxford University Press 10.1093/oxfordjournals.pcp.a075734

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Aminopeptidase, carboxypeptidase and neutral endopeptidase activities were analyzed in glumes and in kernels of field-grown wheat (Triticum aestivum L.) during ear development. Kernels harvested on two dates were subdivided into outer pericarp, cross cells, endosperm and embryo. In developing parts with a net nitrogen influx (young glumes, embryo, endosperm) the aminopeptidase activity is high, but in nitrogen-mobilizing tissues (senescing glumes, Outer pericarp) this activity decreases. Carboxypeptidase is most active in fully expanded tissues. Neutral endopeptidase shows the highest activity in the nitrogen mobilizing parts and extremely low activity in the embryo and the endosperm.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Plant nutrition (discontinued)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Feller, Urs

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

0032-0781

Publisher:

Oxford University Press

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

07 Mar 2017 09:04

Last Modified:

27 Apr 2018 11:01

Publisher DOI:

10.1093/oxfordjournals.pcp.a075734

Uncontrolled Keywords:

Glumes, Grains, Nitrogen mobilization, Proteolytic activities, Wheat

BORIS DOI:

10.7892/boris.91949

URI:

https://boris.unibe.ch/id/eprint/91949

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