Putrescine and Spermidine in Peas: Effeets on Nitrogen Source and Potassium Supply

Klein, H.; Priebe, A.; Jäger, Hans‐Jürgen

doi:10.1111/j.1399-3054.1979.tb02621.x

Cited by 34 publications

(11 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further metabolic studies established that radiolabeled ornithine was converted to putrescine more rapidly in ammonium-fed seedlings, that the rate of agmatine metabolism to putrescine was accelerated under these conditions, and that the degree of putrescine oxidation by diamine oxidase was considerably lower under conditions of ammonium as compared with nitrate nutrition (Le Rudulier andGoas 1974, 1977). A similar effect of ammonium on putrescine accumulation was found in other plants, including tomato, tobacco, pea, petunia and pepper (Hohlt et al 1970, Klein et al 1979). Since ammonium feeding leads to acidification of the medium, it was questioned whether medium acidification was the direct cause for putrescine accumulation.…”

Section: Introductionsupporting

confidence: 60%

Interactions of polyamines and nitrogen nutrition in plants

Altman¹,

Levin²

1993

Physiol Plant

View full text Add to dashboard Cite

N. 1993. Interactions of polyamines and nitrogen nutrition in plants. -Physiol. Plant. 89: 653-658.Biogenic amines occupy an important position among the many nitrogenous plant compounds. Polyamines are part of the overall metabolism of nitrogenous compounds, yet they do not seem to function in the 'normal' nitrogen nutrition. Rather, these widespread polycations (e.g. putrescine. spermidine and spermine) are involved in the regulation of growth and stress, probably by binding to negatively charged macromoiecuies. In addition, some diamines and polyamines are metabolized to yield 'secondary' metabolites such as nicotine and other alkaloids. Previous studies have indicated that the ratio of nitrate to ammonium nutrition affects polyamine biosynthesis and content in intact plants. Thus, an increase in putrescine accumulation was found under conditions of excess ammonium ions, relative to nitrate. Modifications of nitrogen sources in the culture medium of tobacco cell suspensions (depletion of ammonium nitrate, or potassium nitrate, or both) resulted in marked changes in the content of cellular free polyamines. Considerable changes in the content of specific polyamines were also found with exposure to specific inhibitors of polyamine biosynthesis (difluoromethyl ornithine. difluoromethyl arginine, cyclohexylamine, methylglyoxal-bis-guanylhydrazone). However, a combination of nitrogen depletion of the medium and some inhibitors resulted in a very marked over-production of spermidine and spermine. The significance of these findings is discussed in relation to the assumption that polyamines act as a metabolic buffer, and maintain cellular pH under conditions where ammonium assimilation produces an excess of protons.

show abstract

Section: Introductionsupporting

confidence: 60%

Interactions of polyamines and nitrogen nutrition in plants

Altman¹,

Levin²

1993

Physiol Plant

View full text Add to dashboard Cite

show abstract

“…Osmotic stress has been reported to stimulate polyamine accumulation in plants (Flores and Galston, 1982, 1984a, and 1984b. The plants with toxic symptoms under stress of potassium deficiency usually accumulate high concentration of putrescine (Corey and Barker, 1989;Klein et al, 1979;Smith, 1973). A previous study also indicated that high putrescine Downloaded by [Cornell University Library] at 16:17 19 November 2014 concentration from stressed plants was associated with high ammonium accumulation and ethylene evolution (Feng, 1992).…”

Section: Discussionmentioning

confidence: 92%

Ethylene evolution and ammonium accumulation by tomato plants under water and salinity stresses. Part II

Feng

Barker

1992

Journal of Plant Nutrition

View full text Add to dashboard Cite

Foliar wilting, epinasty, abscission, chlorosis, and necrosis are common symptoms in plants affected by water and salinity stresses. Ethylene evolution and ammonium accumulation frequently accompany the expression of the symptoms of stresses from various origins. These symptoms and physiological phenomena have been associated with other environmental stresses, such as ammonium toxicity. Intact and excised tomato plants (Lycopersicon esculentum Mill. 'Heinz 1350' and neglecta-1) were subjected to stresses of waterlogging, water-deficit, or saline conditions (NaCl or CaCl 2 ). In soil culture in the greenhouse, tomato plants subjected to waterlogging developed epinasty and chlorosis and had increased ethylene evolution and ammonium accumulation. The application of aminooxyacetic acid (AOA) ameliorated the symptoms and reduced ethylene evolution and ammonium accumulation. Tomato subjected to drought developed chlorosis and had enhanced ammonium accumulation, but no increased ethylene evolution was observed. The chlorotic and necrotic symptoms were observed for plants receiving NaCl or CaCl 2 . Application of ammonium nutrition or water stress aggravated the development of toxic symptoms. Ammonium accumulation and ethylene evolution were enhanced with intact plants or excised seedlings under these stresses. Application of AOA through stems of excised seedlings

show abstract

“…Polyamines are involved in development, senescence, and stress responses of plants (Galston and Sawhney 1990;Kumar et al 1997). Additionally, putrescine accumulation in response to K deficiency has been reported in other plant species (Klein et al 1979;Smith et al 1982;Adams et al 1990;Sung et al 1994). Thus, our results indicate that -K stress response is similar in gentian, even in explants culture.…”

Section: Metabolite Profiles Of K and P Deficiencymentioning

confidence: 92%

Comparative metabolomics of developmental alterations caused by mineral deficiency during in vitro culture of Gentiana triflora

et al. 2011

View full text Add to dashboard Cite

Gentians (Gentiana triflora, G. scabra, and hybrids of the two) are mainly cultivated as ornamental flowers in Japan. Because gentians are allogamous plants, their diversity and heterozygosity have become a major problem. Recently, explants were clonally cultured to maintain genetic purity, but culture conditions have not been studied systematically, thus the essential nutrients required for gentian culture are unknown. We therefore investigated the effects of potassium (K) and phosphorus (P) deficiency in culture media. Explants grew under K or P deficiency conditions, but P deficiency caused the formation of new structures which are similar to overwintering buds. To elucidate the mechanism behind the gentian response to mineral deficiency, we performed targeted metabolome analyses using capillary electrophoresis-mass spectrometry. Multivariate analysis using metabolite profiles showed that characteristic metabolite patterns arise in response to K or P deficiency. Under P deficiency there is a severe decrease in energy metabolites, which may in turn trigger overwintering bud formation in vitro. These findings may contribute to understanding the horticultural conditions required by gentians to trigger bud formation, and may provide a new strategy for maintaining genetic purity for long periods.

show abstract

Putrescine and Spermidine in Peas: Effeets on Nitrogen Source and Potassium Supply

Cited by 34 publications

References 12 publications

Interactions of polyamines and nitrogen nutrition in plants

Interactions of polyamines and nitrogen nutrition in plants

Ethylene evolution and ammonium accumulation by tomato plants under water and salinity stresses. Part II

Comparative metabolomics of developmental alterations caused by mineral deficiency during in vitro culture of Gentiana triflora

Contact Info

Product

Resources

About