Species climatic niche explains post-fire regeneration of Aleppo pine (Pinus halepensis Mill.) under compounded effects of fire and drought in east Spain

Elvira, Nuria Jiménez; Lloret, Francisco; Jaime, Luciana; Margalef-Marrase, Jordi; Navarro, María Ángeles Pérez; Batllori, Enric

doi:10.1016/j.scitotenv.2021.149308

Cited by 12 publications

(2 citation statements)

References 67 publications

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“…These characteristics make this species a potential alternative for reforestation. However, the foreseen climatic changes and the interaction between warm temperatures and precipitation can modify the success of its post-fire recovery patterns and resilience in the future [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Proteomic and Metabolic Analysis of Pinus halepensis Mill. Embryonal Masses Induced under Heat Stress

Pereira

Castander-Olarieta

Montalbán

et al. 2023

IJMS

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Understanding the physiological and molecular adjustments occurring during tree stress response is of great importance for forest management and breeding programs. Somatic embryogenesis has been used as a model system to analyze various processes occurring during embryo development, including stress response mechanisms. In addition, “priming” plants with heat stress during somatic embryogenesis seems to favor the acquisition of plant resilience to extreme temperature conditions. In this sense, Pinus halepensis somatic embryogenesis was induced under different heat stress treatments (40 °C for 4 h, 50 °C for 30 min, and 60 °C for 5 min) and its effects on the proteome and the relative concentration of soluble sugars, sugar alcohols and amino acids of the embryonal masses obtained were assessed. Heat severely affected the production of proteins, and 27 proteins related to heat stress response were identified; the majority of the proteins with increased amounts in embryonal masses induced at higher temperatures consisted of enzymes involved in the regulation of metabolism (glycolysis, the tricarboxylic acid cycle, amino acid biosynthesis and flavonoids formation), DNA binding, cell division, transcription regulation and the life-cycle of proteins. Finally, significant differences in the concentrations of sucrose and amino acids, such as glutamine, glycine and cysteine, were found.

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Section: Introductionmentioning

confidence: 99%

Proteomic and Metabolic Analysis of Pinus halepensis Mill. Embryonal Masses Induced under Heat Stress

Pereira

Castander-Olarieta

Montalbán

et al. 2023

IJMS

View full text Add to dashboard Cite

show abstract

“…Notably, there is a substantial presence of pixels measuring less than 1 m and having lower structural complexity (fewer rebounds) in the SQ, which is more indicative of an initial phase of the regeneration process rather than the state of regeneration 15 years after the fire. In this sense, although an average of 20 years has been indicated to reach the mature stage prior to burning [12], it should be considered that the development of the vegetation structure in the 2008 fire has been influenced by other factors that may have limited its reproductive capacity (post-fire seedling density) and height development, such as preand post-fire climatic variations or severity [13][14][15]. On the opposite end, the 1970 fire, the furthest in time, exhibits the lowest levels of malleability, as both structures display similar distributions and PAC value close to 0.…”

Section: Discussionmentioning

confidence: 99%