Kws Saat Se * Co. Kgaa

Heinrich-heine-universitat Dusseldorf

Peter Westhoff

Milena Ouzunova

Daniela Scheuermann

Thomas Presterl

Carsten Knaak

Georg Groth

Judith Katharina Paulus

Claude Urbany

Daniel Schlieper

Elena Pestsova

Karin Ernst

The present invention relates to the identification and molecular characterization as well as to the use of genes and markers from a chromosomal interval which has a locus for cold tolerance in maize. The invention further relates to the development of molecular markers for assisting in growth, in particular for preventing a fixing of a 'selective sweep' in a region with a low recombination rate, and to the provision of transgenic and non-transgenic plants, in particular maize plants, which show a newly mediated or increased cold tolerance.

Cold-tolerant plant

The present invention relates to the use of a compound, a salt or solvate thereof as C4 plant selective herbicide wherein said compound has a structure according to formula (I) wherein A is a cyclic alkyl, aryl, heterocycloalkyl, or heteroaryl group, and B is a cyclic alkyl, aryl, heterocycloalkyl, or heteroaryl group, and wherein R, R, R, Rand Rare, independently of each other H or an alkyl group, and wherein integer i is 0 or 1, preferably 1, and the bond (a) is a single or double bond, and wherein in case (a) is a double bond, n is 0 and X is O or S, and wherein in case (a) is a single bond n is 1, and X is H or an alkyl group, and wherein the bond (b) is a single or double bond, and wherein in case (b) is a double bond, m and p are 0, and wherein in case (b) is a single bond m and p are both 1, and/or according to formula (II) including tautomeric structures thereof, wherein Rand Rare independently of each other selected from the group consisting of H, OH, carboxylic acid, ester, alkyl, alkoxy and halogen, wherein Yis selected from the group consisting of (S(&#x2550;O)2), S(&#x2550;O)) and (C(&#x2550;O)), and wherein Yis O, and wherein r is 0 or 1 and wherein in case r is 0, q and s are 1, and wherein in case r is 1, q and s are 0, and wherein R, R, R, R, R, R, R, R, R, R, R, R, Rand Rare independently of each other selected from the group consisting of H, OH, &#x2014;SO3H, carboxylic acid, ester, alkyl, alkoxy and halogen, said compound being capable of binding to the malate binding site comprised by a phosphoenolpyruvate carboxylase from a C4 plant, thereby inhibiting said phosphoenolpyruvate carboxylase. 

Selective inhibition of C4-PEP carboxylases

Growing community of inventors

Neuss, Germany

Peter Westhoff