+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Influence of nitrogen on accumulation of isosojagol a newly detected coumestan in soybean and associated isoflavonoids in roots and nodules of mycorrhizal and non mycorrhizal soybean



Influence of nitrogen on accumulation of isosojagol a newly detected coumestan in soybean and associated isoflavonoids in roots and nodules of mycorrhizal and non mycorrhizal soybean



New Phytologist 117(1): 75-80



A newly detected coumestan was found to accumulate in roots of soybean (Glycine max. L., var. Amsoy 71), after infection by a vesicular arbuscular (VA) mycorrhizal fungus (Glomus intraradices, Schenck and Smith) and very strongly in nodules after nitrogen application. This coumestan was identified as a 3,9 dihydroxy 10 (.gamma.,.gamma.-dimethylallyl) coumestan called isosojagol. Three other associated isoflavonoids were analysed: glyceollin I, coumestrol and daidzein. Nitrogen application decreased the concentration of these three compounds in roots, particularly in non-mycorrhizal soybeans, whilst their concentration in nodules was not significantly affected. VA mycorrhizal infection decreased the accumulation of all the compounds analysed in nodules, although the fungus was never observed inside the nodule, but increased their accumulation in roots.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 007457827

Download citation: RISBibTeXText

DOI: 10.1111/j.1469-8137.1991.tb00946.x


Related references

Influence of Nitrogen on Accumulation of Isosojagol (a Newly Detected Coumestan in Soybean) and Associated Isoflavonoids in Roots and Nodules of Mycorrhizal and Non-Mycorrhizal Soybean. New Phytologist 117(1): 75-79, 1991

Arbuscular mycorrhizal fungi and mycorrhizal stimulant affect dry matter and nutrient accumulation in bean and soybean plants1. Pesquisa Agropecuária Tropical 46(4): 367-373, 2016

Coordinated regulation of arbuscular mycorrhizal fungi and soybean MAPK pathway genes improved mycorrhizal soybean drought tolerance. Molecular Plant-Microbe Interactions 28(4): 408-419, 2015

Mycorrhizal influence on chromium tolerance and accumulation in soybean. Plant Biology (Rockville) : 181, 1999

Iso flavonoid accumulation in soybean glycine max cultivar amsoy 71 roots infected with vesicular arbuscular mycorrhizal fungi. Physiological Plant Pathology 24(3): 357-364, 1984

Below-ground interactions between a seedling soybean and pre-established soybean plant with and without mycorrhizal fungi. 1. Plant biomass, root growth, and mycorrhizal colonization. Agriculture, Ecosystems and Environment 49(2): 131-138, 1994

Influence of mycorrhizal infection and phosphate nutrition on secondary metabolite contents of soybean roots. Physiological and genetical aspects of mycorrhizae = Aspects physiologiques et genetiques des mycorhizes: proceedings of the 1st European Symposium on Mycorrhizae Dijon 1-5 July 1985: 791, 1986

Influence of arbuscular mycorrhizal fungi and Heterodera glycines on enzyme activity in soybean roots. Mycosystema 22(4): 613-619, 2003

The effects of Ca2+ and Mg2+ on accumulation and secretion of isoflavonoids by soybean roots. Plant Science 72(2): 181-191, 1990

Impact of long-term nitrogen fertilization and rotation with soybean on the diversity and phosphorus metabolism of indigenous arbuscular mycorrhizal fungi within the roots of maize Zea mays L. Agriculture, Ecosystems and Environment 164: 53-61, 2013

The effects of calcium and magnesium on accumulation and secretion of isoflavonoids by soybean roots. Plant Science 72(2): 181-192, 1990

External phosphorus requirement of mycorrhizal and non-mycorrhizal barley and soybean plants. Biology and fertility of soils 1(4): 303-308, 1996

Variability in colonization of arbuscular mycorrhizal fungi and its effect on mycorrhizal dependency of improved and unimproved soybean cultivars. Canadian Journal of Microbiology 62(12): 1034-1040, 2016

Phosphorus uptake by mycorrhizal and nonmycorrhizal roots of soybean. Journal of Plant Nutrition 9(10): 1303-1313, 1986

The symbiotic recapture of nitrogen from dead mycorrhizal and non-mycorrhizal roots of tomato plants. Plant and Soil 364(1-2): 341-355, 2013