Zobrazeno 1 - 10
of 48
pro vyhledávání: '"L. Salsac"'
Publikováno v:
The New phytologistReferences. 114(3)
SUMMARY The growth of Hebeloma cylindrosporum Romagn. on nitrate medium is associated with nitrate reductase activity equivalent to that measured in herbaceous angiosperms. Nitrate is not indispensable for the induction of NR, as thalli cultivated in
Publikováno v:
Experientia. 47:340-349
Assimilation pathways of mineral nitrogen and ion balances of the two partners of ectomycorrhizal symbiosis (fungi and woody plants) are reviewed. Data are presented about the partners both in pure culture and in mycorrhizal association. The two form
Publikováno v:
New Phytologist. 114:227-234
SUMMARY Hebeloma cylindrosporum Romagn. grown on a nitrate medium exhibits a growth rate ten times greater than that on an ammonium medium lacking organic acids. Nitrate reduction is accompanied by a low rate of synthesis of organic anions and an ele
Polyphosphatase acitivities in the soluble fraction of mycelial homogenates of Pisolithus tinctorius
Publikováno v:
Agriculture, Ecosystems & Environment. 28:525-528
Activities of acid phosphatase activities in the soluble fraction of Pisolithus tinctorius homogenates, cultured on media with or without Pi 100 μM were assayed using sodium polyphosphates. Phosphatase activities increased with decreasing lengths of
Publikováno v:
New Phytologist. 114:93-98
Summary In maritime pine seedlings (Pinus pinaster Soland in Ait.), nitrate absorption and reduction capacities were estimated by the incorporation of 15N-labelled nitrogen. This method allowed us to work on the whole plant Without perturbing plant b
Publikováno v:
Bulletin de la Société Botanique de France. Actualités Botaniques. 135:109-118
ResumeLes roles respectifs des partenaires de la symbiose ectomycorhizienne dans les metabolismes carbone, phosphate et azote des plantes mycorhizees sont etudies. Pour les echanges de carbone, la plante-hote est essentiellement la source et le mycos
Publikováno v:
Plant and Soil. 116:197-206
When following the pattern of the disappearance of NH 4 + −N from ammonium sulfate applied to the flooded soil-rice plant system (field and greenhouse experiments) during a growing season, it was observed that the lowest NH 4 + −N level coincided
Publikováno v:
Plant and Soil. 96:17-29
Symbiotic N2 fixation, NO 3 − assimilation and protein accumulation in the shoots were measured simultaneously in alfalfa (Medicago sativa L.) grown in the field or in pots, in order to study how the balance between the two modes of nitrogen nutrit
Publikováno v:
Agronomie. 9:409-414
Une activite nitrate reductase (ANR) est detectable chez le pecher a l'aide des methodes de mesure in vivo et in situ. La valeur de cette activite depend des conditions d'incubation (duree, temperature, concentration en nitrate du milieu) et de prele
Publikováno v:
Plant and Soil. 63:427-438
Cultivars ofPhaseolus vulgaris (L.) from contrasting geographic locations were cultivated under fields conditions for measurements of nitrogenase and nitrate reductase activities. A first trial with two cultivars indicated that a tropical cultivar B-