Soil P in the Fynbos is low, varying between 3 and 20 mg kg −1 soil.
Families that do not have mycorrhiza are usually those with cluster roots or analogous structures while some species have both ( Allsopp and Stock, 1993), or have the tripartite relationship of N 2-fixing bacteria, cluster roots and mycorrhiza (e.g.
mycorrhiza, carnivory, cluster roots) facilitate survival of species found in the Fynbos. It is possible that the age and/or the related depletion of the soils of the CFR are factors responsible for the high plant diversity and that different nutrient acquisition strategies (e.g. These and other families grow on ancient, highly weathered, low-nutrient, mostly acid soils where nitrogen (N) and phosphorus (P) are limiting ( Richards et al., 1997). Fynbos is characterized by sclerophyllous plants and the presence of three plant families: Proteaceae, Restionaceae (largely non-mycorrhizal) and Ericaceae (ericoid mycorrhizal). The Fynbos (‘fine bush’) biome is part of the Cape Floristic Region (CFR) in the south-west of South Africa and is one of the world's biodiversity hotspots. The uptake capacities of cluster roots are discussed in relation to spatial and morphological characteristics in the natural environment.Īmino acid, cluster roots, 13C– 15N-Gly, Leucadendron laureolum, Lupinus albus, Fynbos, Proteaceae, organic nitrogen INTRODUCTION Conclusions Cluster roots of lupin specifically acquired more intact Gly than non-cluster roots, whereas Gly uptake by the cluster and non-cluster roots of leucadendron was comparable.The ratio of C : N and 13C : 15N in the plant increased in the order: labelled roots < rest of the root < shoot in both species, owing to an increasing proportion of 13C translocation. Rates of uptake of label from Gly did not differ between cluster and non-cluster roots of either species. After treatment with labelled Gly ( 13C : 15N ratio = 1), lupin cluster roots had a 13C : 15N ratio of about 0♸5 compared with 0♵9 in labelled non-cluster roots. Lupin (but not leucadendron) acquired more intact Gly when cluster roots were supplied with 13C– 15N-Gly than when non-cluster roots were supplied. Key Results Both plant species acquired doubly labelled (intact) Gly, and respiratory losses of 13CO 2 were small.Methods Uptake of organic N as 13C– 15N-Gly was determined in cluster roots and non-cluster roots of Leucadendron laureolum (Proteaceae) and Lupinus albus (Fabaceae) in hydroponic culture, taking account of respiratory loss of 13CO 2.The ability of these roots to acquire the amino acid glycine (Gly) was assessed. The Proteaceae (a main component of the South African Fynbos vegetation) and some Fabaceae produce cluster roots in response to low soil phosphorus. Background and Aims South African soils are not only low in phosphorus (P) but most nitrogen (N) is in organic form, and soil amino acid concentrations can reach 2♶ g kg −1 soil.Be sure to keep an eye on her website and social media for more information. Following on from this, Heather plans to release an EP in the summer of this year. The Power is out now and can be streamed on Soundcloud (link above) as well as Spotify and Heather Jayne will be releasing two more singles over the coming months.
#Jayne mastodonte full
The track is a pure electro barnstormer of a ballad, making full use of the rich tones and expansive, powerful range of her voice which invites comparisons with the likes of Banks, or Holly Dodson of Parallels.Īlly that with a softly smouldering arrangement, with its musical nods to the likes of Florence Welch and Tove Lo in its quiet strength, but despite those comparisons The Power is very much its own perfect pop confection. You can hear the nineteen year old’s own musical vision on her debut single The Power. It’s a voice that will be familiar to some as she was a semi-finalist on BBC’s ‘The Voice UK’ in 2016, working with Boy George and Paloma Faith along the way. Heather Jayne is a 19-year-old singer/songwriter from Berkshire in England, with an angelic and ethereally powerful voice that was described as by Will.I.Am, of the Black Eyed Peas, as “natural, pure and warm”.
0 kommentar(er)
