From BIOSCI-REQUEST Tue Jun 6 08:02:13 1995 Return-Path: BIOSCI-REQUEST Received: (from daemon@localhost) by net.bio.net (8.6.11/8.6.6) id FAA11391 for rust-mil-list; Tue, 6 Jun 1995 05:15:40 -0700 Received: from gatekeeper.es.dupont.com (gatekeeper.es.dupont.com [192.26.233.2]) by net.bio.net (8.6.11/8.6.6) with SMTP id FAA11386 for ; Tue, 6 Jun 1995 05:15:35 -0700 From: maxwelca@esvax.dnet.dupont.com Received: by gatekeeper.es.dupont.com; id AA24771; Tue, 6 Jun 95 08:15:22 -0400 Received: by esds01.es.dupont.com; id AA06710; Tue, 6 Jun 95 08:13:00 -0400 Message-Id: <9506061213.AA06710@esds01.es.dupont.com> Received: from esvax.dnet; by esds01.dnet; Tue, 6 Jun 95 08:15:20 EDT Date: Tue, 6 Jun 95 08:15:20 EDT To: rust-mil@net.bio.net Apparently-To: rust-mil@net.bio.net Subject: Research Positions RESEARCH SCIENTISTS NEW APPROACHES TO CROP PROTECTION The DuPont Company is seeking highly motivated research scientists to join a multidisciplinary team working to exploit modern biological methods in the discovery and development of novel products for the control of weeds and plant diseases. Applicants should be proven problem solvers, capable of working and communicating effectively in a diverse group of biochemists, chemists, molecular geneticists and biologists. Strong computer skills are a must. Successful candidates will join teams in Wilmington and Newark, Delaware. Our Mid-Atlantic location offers a wide range of academic, cultural and recreational activities. DUPONT AGRICULTURAL PRODUCTS Molecular Biologist The Biochemical Discovery Section is searching for a molecular biologist with a strong background in biochemistry and analytical methods. The individual will work with a team that has the objective of discovering new herbicides and fungicides through the design of novel screening technology and the elucidation of biochemical modes of action. Minimum requirements for the position include a Ph.D. in the biological sciences (e.g., molecular biology, biochemistry, fungal or plant physiology) with experience in intermediary metabolism and analytical techniques. Training in the biology of filamentous fungi and plant-fungus interactions is desirable. Applicants should respond to DuPont Human Resources PO Box 30-MB, Newark, DE 19714. Analytical Biochemist The Biochemical Discovery Section is seeking an analytical biochemist to join a team working to identify new molecular targets for crop protection chemistry. The successful applicant will aid in the discovery of biologically active compounds that interact specifically with these targets. Responsibilities for this position include characterizing metabolic flux in selected pathways, as well as determining rates of uptake, translocation and metabolism of xenobiotics in plants and fungi. Minimum requirements for the position include a Ph.D. in the biological or chemical sciences (e.g., biochemistry, fungal or plant physiology) with experience in intermediary metabolism and analytical techniques. Familiarity with HPLC, GC, NMR and/or mass spectrometry is strongly recommended. Some knowledge of organic chemistry, enzyme mechanisms and molecular biology is highly desirable. Applicants should respond to DuPont Human Resources, PO Box 30-AB, Newark DE 19714. DUPONT CENTRAL RESEARCH & DEVELOPMENT Yeast Molecular Geneticist The Biological Sciences Section is searching for a scientist with a Ph.D. in yeast molecular genetics. Applicants should have postdoctoral experience, with demonstrated ability to develop an active research program in yeast molecular and cellular biology. The objective will be to apply the power of modern yeast biology to the identification and characterization of molecular targets for novel crop protection products. The successful candidate will join an interdisciplinary team that includes scientists in DuPont Agricultural Products. Information generated will be applied to the discovery and development of herbicides and fungicides by screening combinatorial chemistry libraries and by designing target-directed inhibitors. Experience in biochemistry is desirable, along with the ability to establish effective interactions with biologists, chemists and specialists in bioinformatics. Applicants should respond to DuPont Human Resources, PSS-0106, Wilmington, DE 19898. Interested candidates should forward their resumes and a list of references by July 3, 1995. DuPont is an equal opportunity employer. From BIOSCI-REQUEST Wed Jun 14 20:13:50 1995 Return-Path: BIOSCI-REQUEST Received: (from daemon@localhost) by net.bio.net (8.6.12/8.6.6) id UAA06334 for rust-mil-list; Wed, 14 Jun 1995 20:13:50 -0700 Received: from sun2.mhs-relay.ac.uk (sun2.mhs-relay.ac.uk [128.86.8.35]) by net.bio.net (8.6.12/8.6.6) with SMTP id UAA06327 for ; Wed, 14 Jun 1995 20:13:40 -0700 X400-Received: by mta sun2.mhs-relay.ac.uk in /PRMD=uk.ac/ADMD= /C=gb/; Relayed; Wed, 14 Jun 1995 09:30:23 +0100 X400-Received: by mta JIIS in /PRMD=UK.AC/ADMD= /C=GB/; Relayed; Tue, 13 Jun 1995 19:25:11 +0100 X400-Received: by mta arcs.bbsrc.ac.uk in /PRMD=UK.AC/ADMD= /C=GB/; Relayed; Tue, 13 Jun 1995 19:25:10 +0100 X400-Received: by /PRMD=UK.AC/ADMD= /C=GB/; converted (ia5 text (2)); Relayed; Tue, 13 Jun 1995 19:26:14 +0100 Date: Tue, 13 Jun 1995 19:26:14 +0100 X400-Originator: james.brown@bbsrc.ac.uk X400-Recipients: rust-mil@net.bio.net X400-MTS-Identifier: [/PRMD=UK.AC/ADMD= /C=GB/;7310251813061995/A11865/JIIS] X400-Content-Type: P2-1984 (2) Content-Identifier: 11966C990800 From: James Brown Message-ID: <7310251813061995/A11865/JIIS/11966C990800*@MHS> To: Rust-mildew (Non Receipt Notification Requested) Subject: cost of resistance Sensitivity: Private Here's a rusty-mildewy question: There's quite a literature on costs of race-specific virulence - testing whether or not unnecessary virulence reduces fitness, and if so, by how much. My question is, does anyone know anything about fitness costs of race-specific resistance genes? I emphasise _race-specific_ resistance, because the question I have in mind relates to the recognition-response model of gene-for-gene interactions: if a resistance gene product differs from the product of an allele of that gene because of a difference in the conformation of a part of the molecule which acts as a receptor of an avirulence gene product, would that necessarily cause any difference in the fitness effects of the alleles? The only paper I know of is by J.H. Joergensen & H.P. Jensen (1990) Norsk Landbruksforksning, supplement 125-130 "Effect of 'unnecessary' powdery mildew resistance genes on agronomic properties on spring barley". They didn't identify any cost. I'll post a summary of interesting, non-confidential replies. James Brown _______________________________________________________ Dr J. K. M. Brown, Cereals Research Department, John Innes Centre, Colney Lane, Norwich, NR4 7UH, England Phone: (+44)(0) 1603 452571. Fax: (+44)(0) 1603 502241. E-mail: james.brown@bbsrc.ac.uk From BIOSCI-REQUEST Thu Jun 15 09:33:48 1995 Return-Path: BIOSCI-REQUEST Received: (from daemon@localhost) by net.bio.net (8.6.12/8.6.6) id JAA19908 for rust-mil-list; Thu, 15 Jun 1995 09:33:48 -0700 Received: from disperse.demon.co.uk (disperse.demon.co.uk [158.152.1.77]) by net.bio.net (8.6.12/8.6.6) with SMTP id JAA19902 for ; Thu, 15 Jun 1995 09:33:45 -0700 Received: from post.demon.co.uk by disperse.demon.co.uk id ab27722; 15 Jun 95 15:05 +0100 Received: from nickbio.demon.co.uk by post.demon.co.uk id aa19808; 15 Jun 95 15:04 +0100 X-Sender: (Unverified) Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Thu, 15 Jun 1995 15:12:55 +0000 To: rust-mil@net.bio.net From: Peter G Isaac Subject: yr17 breakdown Message-ID: <9506151505.aa19808@post.demon.co.uk> I received a copy of the following press release, and thought people might be interested. Pete Isaac Nickerson BIOCEM ----------------- NEW YELLOW RUST RACE IDENTIFIED AT THE NIAB A new race of Yellow Rust has been identified on wheat in inoculated poly-tunnel tests at the NIAB in Cambridge. This new race has virulence for the Rendezvous yellow rust resistance (Yr17) and some Rendezvous derivatives. So far this particular race of yellow rust has only been observed in enclosed, irrigated conditions and as yet there is no evidence of field infection. The existence of this race indicates that the Rendezvous yellow rust resistance may no longer be effective and the following varieties on the 1995 NIAB Recommended List are at risk from this breakdown - Brigadier, Hussar and Beaufort. Crops of these varieties should be monitored to ensure that infection is not a problem in the field. A more comprehensive testing programme will be put in to place during the 1995/6 season to assess a wider range of varieties, which may be at risk. This will be carried out under field conditions in order to evaluate degrees of infection, in order to update NIAB resistance ratings. Should this particular race become widespread, wheat growers in high Yellow Rust risk areas would be best advised to limit their acreage of susceptible varieties. Some varieties in the same diversification group as Rendezvous related varieties (DG1) will not be affected by this race change as their resistance is based on other genetic factors. A routine prophylactic spraying policy may be necessary for some 'at risk' varieties, as is currently practiced with other varieties such as Riband. ----------------------------- From BIOSCI-REQUEST Thu Jun 29 11:33:36 1995 Return-Path: BIOSCI-REQUEST Received: (from daemon@localhost) by net.bio.net (8.6.12/8.6.6) id LAA08669 for rust-mil-list; Thu, 29 Jun 1995 11:33:36 -0700 Received: from mail.unet.umn.edu (mail.unet.umn.edu [128.101.101.103]) by net.bio.net (8.6.12/8.6.6) with SMTP id LAA08666 for ; Thu, 29 Jun 1995 11:33:33 -0700 From: Les@puccini.crl.umn.edu Received: from puccini.crl.umn.edu by mail.unet.umn.edu (5.65c) id AA09584; Thu, 29 Jun 1995 13:29:33 -0500 Message-Id: <199506291830.NAA28082@puccini.crl.umn.edu> Received: from puccini.crl.umn.edu by puccini.crl.umn.edu; Thu, 29 Jun 1995 13:30:09 -0500 Newsgroups: bionet.mycology Date: Thu, 29 Jun 95 13:18:56 PDT Subject: Book: The Rust Fungi of Cereals, Grasses and Bamboos To: rust-mil@net.bio.net X-Newsreader: NEWTNews & Chameleon -- TCP/IP for MS Windows from NetManage Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Greetings all. I have been trying to locate a copy of G.B Cummins book: "The Rust Fungi of Cereals, Grasses and Bamboos", 1971. This book is out of print and Springer-Verlag does not have any more copies. If someone has a copy they would like to sell or know of a place that I can get a copy, I would appreciate it. Thanks Les Szabo