Many fungi have been identified as pathogens of marine algae. Among them, Chytridiomycota revealed relatively highly abundant, but much the diversity known within these groups is almost entirely based on environmental sequencing data. Here, we present a novel chytridiomycete genus and species, characterized by light microscopical observations, ultrastructure, molecular phylogenetic analysis par...

Root parasites of the genus Orobanche are serious weeds in agriculture. An aseptic infection system of host roots using calli of three Orobanche species was developed for the study of host-parasite interaction. The response of calli to various hormonal combinations was studied, because a requirement for infection is the differentiation of root-like protrusions, which are capable of producing ha...

In the rust fungus Uromyces fabae, the transition from the early stages of host plant invasion toward parasitic growth is accompanied by the activation of many genes (PIGs = in planta induced genes). Two of them, PIG1 (= THI1) and PIG4 (= THI2), were found to be highly transcribed in haustoria, and are homologous to genes involved in thiamine (vitamin B1) biosynthesis in yeast. Their functional...

Sesbania speciosa Taub. ex Engl. is an introduced plant cultivated in India for fibre, green manure and nutraceutical potential. The development histochemistry of the endosperm embryo this have not been yet at all reported present study was carried out effort to bridge that gap our knowledge. Two-micrometer sections seeds S. various stages were cut on a rotary microtome. DNA, ribonucleic acid i...

Hood, M. E., Condon, J. M., Timko, M. P., and Riopel, J. L. 1998. Primary haustorial development of Striga asiatica on host and nonhost species. Phytopathology 88:70-75. the host (sorghum) roots and advance into the cortex occurred within 24 to 48 h of inoculation. Penetration of the endodermis by the developing endophyte was delayed for 72 to 96 h after initial contact. However, upon penetrati...