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Starve to Sustain - An Ancient Syrian Landrace of Sorghum as Tool for Phosphorous Bio-Economy?

Kanbar, A. 1; Mirzai, M. 1; Abuslima, E. 1; Flubacher, N. 1; Eghbalian, R. 1; Garbev, K. ORCID iD icon 2; Bergfeldt, B. 2; Ullrich, A. 2; Leibold, H. 2; Eiche, E. 3; Müller, M.; Mokry, M.; Stapf, D. 2; Nick, P. 1
1 Karlsruher Institut für Technologie (KIT)
2 Institut für Technische Chemie (ITC), Karlsruher Institut für Technologie (KIT)
3 Institut für Angewandte Geowissenschaften (AGW), Karlsruher Institut für Technologie (KIT)


Phosphorus (P) is an essential macronutrient, playing a role in developmental and metabolic processes in plants. To understand the local and systemic responses of sorghum to inorganic phosphorus (Pi) starvation and the potential of straw and ash for reutilisation in agriculture, we compared two grain (Razinieh) and sweet (Della) sorghum varieties with respect to their morpho-physiological and molecular responses. We found that Pi starvation increased the elongation of primary roots, the formation of lateral roots, and the accumulation of anthocyanin. In Razinieh, lateral roots were promoted to a higher extent, correlated with a higher expression of SbPht1 phosphate transporters. Infrared spectra of straw from mature plants raised to maturity showed two prominent bands at 1371 and 2337 cm−1, which could be assigned to P-H(H2) stretching vibration in phosphine acid and phosphinothious acid, and their derivates, whose abundance correlated with phosphate uptake of the source plant and genotype (with a higher intensity in Razinieh). The ash generated from these straws stimulated the shoot elongation and root development of the rice seedlings, especially for the material derived from Razinieh raised under Pi starvation. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000137457
Veröffentlicht am 28.09.2021
DOI: 10.3390/ijms22179312
Zitationen: 4
Web of Science
Zitationen: 5
Zitationen: 5
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
Institut für Technische Chemie (ITC)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1661-6596, 1422-0067
KITopen-ID: 1000137457
HGF-Programm 38.05.02 (POF IV, LK 01) Metals and Minerals Cycle
Erschienen in International Journal of Molecular Sciences
Verlag MDPI
Band 22
Heft 17
Seiten Art.-Nr.: 9312
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
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