Short-term water stress impacts on stomatal, mesophyll and biochemical limitations to photosynthesis differ consistently among tree species from contrasting climates

Biscogniauxia canker or dieback (formerly called Hypoxylon canker or dieback) is a common contributor to poor health and decay in a wide range of tree species (Balbalian & Henn 2014). This disease is caused by several species of fungi in the genus Biscogniauxia (formerly Hypoxylon). B. atropunctata or B. mediterranea are usually the species found on Quercus spp. and other hosts in Florida, affecting trees growing in many different habitats, such as forests, parks, green spaces and urban areas (McBride & Appel, 2009). Typically, species of Biscogniauxia are opportunistic pathogens that do not affect healthy and vigorous trees; some species are more virulent than others. However, once they infect trees under stress (water stress, root disease, soil compaction, construction damage etc.) they can quickly colonize the host. Once a tree is infected and fruiting structures of the fungus are evident, the tree is not likely to survive especially if the infection is in the tree's trunk (Anderson et al., 1995).

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Short-term warming and water stress affect Panicum maximum Jacq. stoichiometric homeostasis and biomass production

The Science of The Total Environment ◽

10.1016/j.scitotenv.2019.05.108 ◽

2019 ◽

Vol 681 ◽

pp. 267-274 ◽

Cited By ~ 8

Author(s):

Dilier Olivera Viciedo ◽

Renato de Mello Prado ◽

Carlos Alberto Martínez ◽

Eduardo Habermann ◽

Marisa de Cássia Piccolo

Keyword(s):

Water Stress ◽

Biomass Production ◽

Panicum Maximum ◽

Short Term

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Tree Species’ Tolerance to Water Stress, Salinity and Fire

Forest Management and the Water Cycle - Ecological Studies ◽

10.1007/978-90-481-9834-4_14 ◽

2010 ◽

pp. 247-261

Author(s):

Martin Lukac ◽

Margus Pensa ◽

Gabriel Schiller

Keyword(s):

Water Stress ◽

Tree Species ◽

Species Tolerance

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The temperature response of leaf dark respiration in 15 provenances of Eucalyptus grandis grown in ambient and elevated CO2

Functional Plant Biology ◽

10.1071/fp17110 ◽

2017 ◽

Vol 44 (11) ◽

pp. 1075 ◽

Cited By ~ 5

Author(s):

Michael J. Aspinwall ◽

Vinod K. Jacob ◽

Chris J. Blackman ◽

Renee A. Smith ◽

Mark G. Tjoelker ◽

...

Keyword(s):

Elevated Co2 ◽

Tree Species ◽

Unit Area ◽

Dark Respiration ◽

Eucalyptus Grandis ◽

Temperature Response ◽

Respiratory Physiology ◽

Interactive Effects ◽

Short Term ◽

Leaf Dark Respiration

The effects of elevated CO2 on the short-term temperature response of leaf dark respiration (R) remain uncertain for many forest tree species. Likewise, variation in leaf R among populations within tree species and potential interactive effects of elevated CO2 are poorly understood. We addressed these uncertainties by measuring the short-term temperature response of leaf R in 15 provenances of Eucalyptus grandis W. Hill ex Maiden from contrasting thermal environments grown under ambient [CO2] (aCO2; 400 µmol mol–1) and elevated [CO2] (640 µmol mol–1; eCO2). Leaf R per unit area (Rarea) measured across a range of temperatures was higher in trees grown in eCO2 and varied up to 104% among provenances. However, eCO2 increased leaf dry mass per unit area (LMA) by 21%, and when R was expressed on a mass basis (i.e. Rmass), it did not differ between CO2 treatments. Likewise, accounting for differences in LMA among provenances, Rmass did not differ among provenances. The temperature sensitivity of R (i.e. Q10) did not differ between CO2 treatments or among provenances. We conclude that eCO2 had no direct effect on the temperature response of R in E. grandis, and respiratory physiology was similar among provenances of E. grandis regardless of home-climate temperature conditions.

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