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The location of untranscribed DNA sequences within ras genes essential for eliciting plant growth suppression by Zongrang Liu; Jing Ma; John C. Sanford is a Agricultural and Biological Sciences article available to read on EtoBox.

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Three heterologous ras DNA-coding sequences and their deletion derivatives were introduced into plant cells to investigate the role of the ras-coding sequences, especially conserved regions, in eliciting growth inhibition. All three ras-coding sequences caused a similar inhibition of plant cell growth, and it was the conserved coding regions which were responsible for this inhibitory effect. The 493 bp conserved region within the v-Ha-ras-coding sequence was studied further, and was shown to be responsible for the inhibitory effect. This region is conserved (over 44%) among the three ras genes studied and encodes a catalytic region of the Ras protein. Small deletions at either the 5' or 3' end of this 493 bp sequence could abolish or dramatically reduce the inhibitory effect. A 36 bp region at the 5' end of the 493 bp region was found to be highly conserved between v-Ha-ras and eight different plant ras or ras-related genes based upon analysis of published sequences. Small deletions affecting this highly conserved 36 bp region completely abolished the inhibitory effect, while deletion of a similar number of base pairs in adjacent regions did not. These results indicate that plant g

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Author

Zongrang Liu; Jing Ma; John C. Sanford

Publisher

Springer; Springer-Verlag; Kluwer Academic Publishers; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 0167-4412)

Published

1995

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)