Bipolaris maydis [anamorph] = Helminthosporium maydis. The occurrence of any specific disease depends on environmental conditions, cultural practices and the hybrid that is grown. 1976 Feb;57(2):171-4. doi: 10.1104/pp.57.2.171. Inheritance of resistance of inbred NC250 of maize ( Zea mays L.) to southern corn leaf blight incited by Helminthosporium maydis Nisik. Basal K + uptake in the root midzone region (cm 2 + 3 + 4) of N and T cytoplasmic versions of each of four maize inbreds was equally sensitive to the toxin(s) of Helminthosporium maydis, race T. Basal K + uptake in the root apex (0-1 cm) and augmented K + uptake in the root midzone were more toxin-sensitive in inbreds W64A(T) and Mo17(T) than in inbreds W64A(N) and Mo17(N). Skip to main content Skip to table of contents. In Nigeria, the SCLB disease has been reported since the 1950’s (Cammack 1956). Some chemical control measures against the disease are there but a global voice of integrated management has created a strong need to work upon other avenues of disease management along with chemical management. Rishi Ram Bhandari 1,, Laxman Aryal 2, Suman Sharma 1, Milan Acharya 1, Ambika Pokhrel 1, Apar G.C. Rhopographus zeae Spicaria spp. Keywords: Copper oxychloride, fungicides, Helminthosporium maydis, in vitro, in vivo, maize, mancozeb, maydis leaf blight, poisoned food technique, propiconazole 1. Race T showed greater virulence towards maize … 6.2.1.12) activities were measured in extracts from maize mesocotyls resistant and susceptible to Helminthosporium maydis and resistant to H. carbonum.CoA ligase activity increased in response to infection with H. maydis in both the resistant and susceptible cultivars. The causal agent was described as Ophio bolus heterostrophus Dreschler by the American observer (16) and the Japanese workers saw only the imperfect stage and named it Helminthosporium maydis Nisikado and Miyake (45). There are three races of B. maydis: Race O, Race C, and Race T; SCLB symptoms vary depending on the infectious pathogen's race. There are over 13,614,000 records available in CAB Direct | Last updated on December 2, 2020. Miyake) Subram. Professor of Botany and of Plant Genetics in Agronomy, and Research Associate, School of Life Sciences, University of Illinois, Urbana, Illinois 61801. Sometimes these spots (lesions) could be many and could coalesce and make the leaves appear ‘burnt’ hence the name “blights”. Maize does possess tremendous potential in terms of food as bread, pops and gruel, feed for dairy, poultry and piggery agro-industries. Fungus is the causative agent of the maize disease, southern corn leaf blight. They were distinguished by differential pathogenicity on inbred com seedlings. Abstract. means you agree to our use of cookies. means you agree to our use of cookies. CAB Direct provides
Knowledge on the genetics of maydis leaf blight (MLB) is crucial to breed the resistant maize cultivars to combat disease epidemics as a sustainable and cost-effective approach. Search for more papers by this author. Here, we investigated the phylogenetic diversity and community composition of actinobacteria associated with ants using a combination of culture-dependent and -independent methods. The nature and mode of inheritance of resistance to Helminthosporium maydis blight was investigated in two maize varieties, ‘RbU-W’ and ‘DIC’. If you would like to, you can learn more about the cookies we use. The … ysiological Plant Patholo(1977) 11, 129-141 Effects of toxin from Helminthosporium maydis T on respiration and associated activities in maize tissue M. A. BEDNARSKI,t R. P. SCFIEFFER and S. IZAWAj Department of Botany and Plant Pathology, Michigan State University, East Lansing, Michigan 48874, U.S.A. (Accepted,for publication March 1977) Earlier work proved that toxin from … session so others can sign in. OSTI.GOV Journal Article: Helminthosporium maydis T toxin increased membrane permeability to Ca/sup 2 +/ in susceptible corn mitochondria The effect of a toxin extract of Helminthosporium maydis , race T on K+ (86Rb) uptake by excised root segments of normal ( N ) and Texas cytoplasmic male-sterile ( T ) versions of corn inbred W64A was investigated. session so others can sign in. Five isolates of C. maydis were isolated from diseased maize plants, showing late wilt symptoms, and were collected from infected maize fields in Gharbia Governorate, Egypt. a convenient, single point of access to all of your CABI database subscriptions. Basal K+ uptake in the root midzone region (cm 2 + 3 + 4) of N and T cytoplasmic versions of each of four maize inbreds was equally sensitive to the toxin(s) of Helminthosporium maydis , race T. Basal K+ uptake in the root apex (0-1 cm) and augmented K+ uptake in the root midzone were more toxin-sensitive in inbreds W64A(T) and Mo17(T) than in inbreds W64A(N) and Mo17(N). CAB Direct is the most thorough and extensive source of reference in the applied life sciences,
This Pleosporales -related article is a stub. The uptake of K+ was inhibited in both N and T roots by the toxin. Maize is vulnerable to numerous diseases at various growth stages in the field as well as during storage. You can now claim your publications on CAB Direct with your ORCID iD! The effect of a toxin extract of Helminthosporium maydis, race T on K + (86 Rb) uptake by excised root segments of normal (N) and Texas cytoplasmic male-sterile (T) versions of corn inbred W64A was investigated.The uptake of K + was inhibited in both N and T roots by the toxin. This is to ensure that we give you the best experience possible. Knowledge on the genetics of maydis leaf blight (MLB) is crucial to breed the resistant maize cultivars to combat disease epidemics as a sustainable and cost-effective approach. This was true for both basal (freshly excised) and augmented (pretreated with aeration) K+ uptake. Open in a separate window. 4.3.1.5) (PAL) and hydroxycinnamate:CoA ligase (E.C. This was true for both basal (freshly excised) and augmented (pretreated with aeration) K+ uptake. Home; Log in; Encyclopedia of Genetics, Genomics, Proteomics and Informatics. J. R. Laughnan. CAB Direct
Maydis leaf blight (MLB) is caused by the ascomycete fungi Bipolaris maydis and is reported from most maize growing regions of the world including India. Abstract-Helminthosporium.pdf (6.358Kb) Date 1979. “Helminthosporium” diseases in cereals, were collected from different regions: nineBipolaris oryzae isolated from rice Oryza(sativa), seven B. sorokiniana from wheat (Triticum aestivum), two B. maydis, and two Exserohilum turcicum from maize Zea mays(). Find out more about this exciting new development, Using our new visualization tools you can, Using our new highlighting and annotation tool you can, remove selected records that are not saved in My CABI, sign you out of your
A severe outbreak of leaf blight on maize in Apr. Abstract. Craig (1971)foundH. The uptake of K(+) was inhibited in both N and T roots by the toxin. is one of the most important diseases, second to downy-mildew on maize plant. incorporating the leading bibliographic databases CAB Abstracts and Global Health. This was true for both basal (freshly excised) and augmented (pretreated with aeration) K(+) uptake. The Helminthosporium blight of maize is a wide spread disease in Odisha causing huge economic loss. Reaction of Germinating Maize Pollen to Helminthosporium maydis Pathotoxins 1. maydis to be widely distributed across Nigeria. The present investigation was framed to understand the genetics of MLB resistance in subtropical maize. Abstract. The following are abstracts of papers presented at a session of the Annual Congress of SASPPM.Roux, P.M. le. Helminthosporium maydis Y. Nisik. & Miy. A new disease of maize, characterized by irregularly shaped leaf lesions, was discovered in 1925 in the United States and Japan. Metadata Show full item record. Introduction Maize (Zea mays L.) is a native of South America is an important cereal crop belonging to the 2012) [9]. The occurrence of any specific disease depends on environmental conditions, cultural practices and the hybrid that is grown. It is also known as southern corn leaf blight (SCLB). Language en. The isolation was carried out from the infected leaves of maize plants (cv. “Helminthosporium” diseases in cereals, were collected from different regions: nineBipolaris oryzae isolated from rice Oryza(sativa), seven B. sorokiniana from wheat (Triticum aestivum), two B. maydis, and two Exserohilum turcicum from maize Zea mays(). Abstract. A study was conducted from 29 March 2014 to 27 July 2014 at the Institute of Agriculture and Animal Science, Paklihawa, Rupandehi with the objective of screening 13 maize genotypes against southern leaf blight caused by Bipolaris maydis.Field experiment was laid out in a randomized complete block design with three replications. Key words Helminthosporium, Maize, Maydis, Leaf blight, Bio-agent Maize or corn (Zea mays L.) is cultivated globally being one of the third most important cereal In that year maize infection of epidemic proportion occurred in the IMited States. Leaf blights is a disease characterized by the appearance of spots on the leaves. Texas male‐sterile cytoplasm (cms ‐T) maize (Zea mays L.) is susceptible to Helminthosporium maydis (Nisikado and Miyake) rate T and its pathotoxin; whereas nonsterile (N) cytoplasm maize is resistant.Callus cultures of cms ‐T and N versions of A619 maize were established to study the effect of the toxin on maize callus and to select for toxin‐resistant cms ‐T callus. 1978 in the Nyanza Province, Kenya, was caused by H. maydis [Cochliobolus heterostrophus: CMI Map 346], a previously unrecorded disease. Abstract. Losses due to this new CAB Direct provides
& Miyake – Southern Corn Leaf Blight. Abstract. Maize, Zea mays L., is one of the most important cereal crops worldwide. race 0, and race T (75). & C. Miyake, (1926) Ophiobolus heterostrophus Drechsler, (1925) Cochliobolus heterostrophus is a fungal plant pathogen. Callus cultures of cms ‐T and N versions of A619 maize were established to study the effect of the toxin on maize callus and to select for toxin‐resistant cms ‐T callus. … Southern leaf blight, southern corn leaf blight, southern leaf spot, maydis leaf blight. Fusarium episphaeria Fusarium merismoides Fusarium oxysporum ... Maize red stripe (now known as Wheat mosaic virus Wheat mosaic virus (WMoV) Maize ring mottle Maize ring mottle virus (MRMV) Pathogenicity test revealed that all C. maydis isolates were able to attack maize plants (cv. Helminthosporium maydis race T toxin, while it is unchanged in N mitochondria. The study of F1, F2, and reciprocal backcross populations of crosses between these two varieties on the one hand and two susceptible varieties, 'UVE' and 'ZPSc-58c' on the other, revealed that resistance in the two varieties is monogenic recessive. Diseases Helminthosporium maydis Nisik. Cochliobolus heterostrophus is found in many tropical regions and in the southern part of the US. Cochliobolus heterostrophus; this is the name for the sexual stage; the asexual stage is known as Bipolaris maydis (previously it was Drechslera maydis and before that Helminthosporium maydis).There are different races. Reactions of seedlings artificially inoculated in greenhouse tests indicated resistance was recessive and ratings of three parents were B73 susceptible, B73rhm resistant, and NC250 segregating. Baladi), which cause late wilt disease. Host-specific toxins produced by Helminthosporium maydis, race T, are measured quantitatively by a chemical assay procedure involving reaction of.