Mechanism of leaf rust resistance in wheat wild relatives, <i>Triticum monococcum</i> L. and <i>T. boeoticum</i> L.

Abstract Triticum monococcum L. and T. boeoticum L., diploid wild relatives of bread wheat ( aestivum L.), possess resistance to leaf rust (also known as brown rust) caused by Puccinia triticina Eriks. Haustorium formation-based mechanisms (i.e. pre-haustorial post-haustorial resistance) have been studied reported in various accessions. In the present study, mechanism accessions was using confocal laser scanning microscopy. Components at a histological level against pathotypes, Mexican pathotype (TCB/TD) Swiss (97512-19), indicated different types operative two The ranged from 97512-19 TCB/TD. response with necrosis pathotypes. Pre-haustorial observed could serve potential source durable breeding.