Phosphorous Supplementation Alleviates Drought-Induced Physio-Biochemical Damages in Calligonum mongolicum
Ullah, Abd (University of Chinese Academy of Sciences)
Tariq, Akash (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Zeng, Fanjiang (University of Chinese Academy of Sciences)
Sardans i Galobart, Jordi (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Graciano, Corina (Instituto de Fisiología Vegetal. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Nacional de La Plata)
Ullah, Sami (University of Peshawar)
Chai, Xutian (University of Chinese Academy of Sciences)
Zhang, Zhihao (University of Chinese Academy of Sciences)
Keyimu, Maierdang (University of Chinese Academy of Sciences)
Asghar, Muhammad Ahsan (Centre for Agricultural Research. ELKH)
Javed, Hafiz Hassan (Sichuan Agricultural University)
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)

Fecha:	2022
Resumen:	Calligonum mongolicum is a phreatophyte playing an important role in sand dune fixation, but little is known about its responses to drought and P fertilization. In the present study, we performed a pot experiment to investigate the effects of P fertilization under drought or well-watered conditions on multiple morpho-physio-biochemical attributes of C. mongolicum seedlings. Drought stress leads to a higher production of hydrogen peroxide (HO) and malondialdehyde (MDA), leading to impaired growth and metabolism. However, C. mongolicum exhibited effective drought tolerance strategies, including a higher accumulation of soluble sugars, starch, soluble protein, proline, and significantly higheractivities of peroxidase (POD) and catalase (CAT) enzymes. P fertilization increased the productivity of drought-stressed seedlings by increasing their growth, assimilative shoots relative water content, photosynthetic pigments, osmolytes accumulation, mineral nutrition, N assimilation, and reduced lipid peroxidation. Our findings suggest the presence of soil high P depletion and C. mongolicum high P requirements during the initial growth stage. Thus, P can be utilized as a fertilizer to enhance the growth and productivity of Calligonum vegetation and to reduce the fragility of the hyper-arid desert of Taklamakan in the context of future climate change.
Nota:	This work was supported by the National Natural Science Foundation of China (No. 41977050, 32250410301), the Key Program of Joint Funds of the National Natural Science Foundation of China, and the Government of Xinjiang Uygur Autonomous Region of China (Nos. U1903102). This research was further supported by the Ministry of Science and Technology, China (QN2022045005).
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Publicado en:	Plants, Vol. 11, Núm. 22 (November 2022) , art. 3054, ISSN 2223-7747

DOI: 10.3390/plants11223054
PMID: 36432784

21 p, 6.1 MB

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