صفحه 1 از جانب 31 نتایج
Toxins have been proposed to facilitate fungal root infection by creating regions of readily-penetrated necrotic tissue when applied externally to intact roots. Isolates of the charcoal rot disease fungus, Macrophomina phaseolina, from soybean plants in Mississippi produced a phytotoxic
Charcoal rot disease, caused by the fungus Macrophomina phaseolina, leads to significant yield losses of soybean crops. One strategy to control charcoal rot is the use of antagonistic, root-colonizing bacteria. Rhizobacteria A(5)F and FPT(7)21 and Pseudomonas sp. strain GRP(3) were characterized for
Charcoal rot disease, caused by the fungus Macrophomina phaseolina, results in major economic losses in soybean production in southern USA. M. phaseolina has been proposed to use the toxin (-)-botryodiplodin in its root infection mechanism to create a necrotic zone in root tissue
Charcoal rot of soybean (Glycine max (L.) Merr.), incited by Macrophomina phaseolina (Tassi) Goidanich, is commonly found in much of the southern soybean production region of the United States, where it can be a major contributor to yield loss in warm, dry seasons (4). The disease has also been
Mungbean (Vigna radiata L.), an important leguminous food crop in China, is popularly grown in arid regions. The total area of mungbean production is 8.0 × 105 ha. In August and September 2010, wilted symptoms were observed in mungbean plants in Yulin, Shaanxi Province and Datong, Shanxi Province.
In August 1999, soybean (Glycine max (L.) Merr.) plants exhibiting symptoms of charcoal rot were observed near Zumbrota, MN. Symptoms included shrunken, unfilled pods, and brown, wilted leaves attached to dead petioles and stems (1). When stems of symptomatic soybean plants were split, areas of
In late August 2002, patches of soybean (Glycine max) plants in a field in Richland County, ND exhibited symptoms and signs of charcoal rot and died prematurely. Dead plants had a silvery-gray appearance, and black microsclerotia (76 ± 28 μm in diameter) were present in the vascular tissue of the
Nine soybean cultivars widely cultivated in Northeast China were investigated in present study to assess their O3 sensitivities on the basis of the response of photosynthesis and seed yield to ambient and future ozone (O3) concentrations, and determine whether the effects of O3 vary with the
Charcoal rot, caused by the fungus Macrophomina phaseolina, is an economically important disease of soybean (Glycine max) worldwide. Objectives of the present research were to (i) study the genetic and pathogenic diversity in a collection of M. phaseolina isolates from Argentina and Paraguay and
Macrophomina phaseolina is a soil-borne fungal pathogen with a wide host range that causes charcoal rot in soybean [Glycine max (L.) Merr.]. Control of the disease is a challenge, due to the absence of genetic resistance and effective chemical control. Alternative or complementary measures are
Soybean (Glycine max) infection by the charcoal rot (CR) ascomycete Macrophomina phaseolina is enhanced by the soybean cyst nematode (SCN) Heterodera glycines. We hypothesized that G. max genetic lines impairing infection by M. phaseolina would also limit H. glycines parasitism, leading to
Apoplastic ascorbate (ASCapo) is an important contributor to the detoxification of ozone (O3). The objective of the study is to explore whether ASCapo is stimulated by elevated O3 concentrations. The detoxification of O3 by ASCapo was quantified in tobacco (Nicotiana L), soybean (Glycine max (L.)
Feeding and maturation by the soybean looper, Pseudoplusia includens (Walker) (Lepidoptera: Noctuidae), were investigated in a 2-yr study on 'Davis' soybean, Glycine max (L.) Merr., grown alone and combined with the weed hemp sesbania, Sesbania exaltata (Raf.) Rybd. ex. A. W. Hill, the root-knot
The maturation of soybean (Glycine max L. Merr.) somatic embryos was characterized. Maturation was assayed by evaluating the ability of somatic embryos to make the transition to a plantlet through a germination-like process. Somatic embryos were organized from cotyledons of immature soybean embryos.