Microelectrodes with a 1- to 2-mum tip diameter have been made which are capable of withstanding plant cell hydrostatic pressure on impalement. Filling the electrodes with 1% agar or 5% gelatin in 2 m KCl prevents cytoplasmic contents from moving into the electrode tip on impalement and therefore prevents the irreversible increase in resistance which often occurs. The agar and gelatin electrode...

Abstract Taxonomy of Pseudohydnum gelatinosum and its sister taxa is revised via morphological data a four-gene dataset (ITS, nc LSU rDNA, TEF1 , RPB1 ). Identity P. Tremellodon pusillus re-established based on newly collected sequenced material from their type localities. alienum Europe; umbrosum temperate East Asia; cystidiatum meridianum placibile Vietnam; omnipavum North America are describ...

Studies on some bacterial diseases of fruit plants from Aurangabad district was carried out during 2003-2009. They are: Leaf necrosis of Custard apple caused by Xanthomonas annonae; Citrus canker caused by Xanthomonas campestris pv. citri; Bacterial canker of Mango caused by Xanthomonas campestris pv. mangiferaeindicae; Leaf necrosis of Guava caused by Xanthomonas psidae; and leaf spot of Badam...

In order to study of the form-genus Cytospora, around 400 specimens were collected from all over the Iran during 2003-2005. In this paper, the first part of the obtained results, including seven form-species are presented. Cytospora atrocirrhata, C. carbonacea, C. gutnerae, C. nivea and C. rosarum are reported as new members for mycoflora of Iran. Also, Vitis vinifera for C. leucostoma and Celt...

Scientific name: Xanthomonas axonopodis pv. allii (Roumagnac et al., 2004a,b). Synonyms: Xanthomonas campestris pv. allii (Kadota et al., 2000). Taxonomic position: Proteobacteria: Gammapropteobacteria: Xanthomonadales: Xanthomonasdaceae. Common names: Xanthomonas axonopodis pv. allii is the causal agent of onion bacterial blight (syn. Xanthomonas leaf blight of onion). EPPO code: XANTAA. Phyto...