Infection of Legumes by Rhizobia

INTRODUCTION .. RECOGNITION . STRUcruRE AND ACTIVITY OF CELL SURFACE POLYSACCHARIDES .. Exopolysaccharides and Capsular Polysaccharides . 7Jt:t:;,:��.�������.:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: EARLY EVENTS IN THE INFECTION PROCESS . Attachment . Location of Infectible Root Cells . Infective Cell Type of Rhizobia . ROOT HAIR CURLING AND INFECTION THREAD INITIATION . Root Hair Curling . Mechanism of Curling . Infection Thread Formation . Alternate Modes of Infection . Role of Cell Wall Degrading Enzymes . REGULATION OF INFECTION AND NODULATION . CONCLUDING REMARKS .