Selection of tree species for forests under climate change: is PSI functioning a better predictor for net photosynthesis and growth than PSII?

2020 ◽  
Vol 40 (11) ◽  
pp. 1561-1571 ◽  
Author(s):  
Martina Pollastrini ◽  
Elisabetta Salvatori ◽  
Lina Fusaro ◽  
Fausto Manes ◽  
Riccardo Marzuoli ◽  
...  
Keyword(s):  
Climate Change ◽  
Chlorophyll Fluorescence ◽  
Tree Species ◽  
Leaf Gas Exchange ◽  
Central Italy ◽  
Common Garden ◽  
Net Photosynthesis ◽  
Photosynthetic Performance ◽  
Seasonal Temperature

Abstract A chlorophyll fluorescence (ChlF) assessment was carried out on oak seedlings (Quercus ilex L., Quercus pubescens Willd., Quercus frainetto Ten.) of Italian and Greek provenance, during the years 2017 and 2018, in a common garden in central Italy planted in 2017. This trial aimed to test the relative performances of the oak species in the perspective of assisted migration as part of the actions for the adaptation of forests to climate change. The assessment of the photosynthetic performance of the tree species included the analysis of the prompt chlorophyll fluorescence (PF) transient and the modulated reflection (MR) at 820 nm, leaf chlorophyll content, leaf gas exchange (net photosynthesis, stomatal conductance), plant growth (i.e., height) and mortality rate after 2 years from the beginning of the experiment. The assessment of the performance of the three oak species was carried out ‘in vivo’. Plants were generated from seeds and exposed to several environmental factors, including changing seasonal temperature, water availability, and soil biological and physical functionality. The results of PF indicate a stable functionality of the photosynthetic system PSII (expressed as FV/FM) across species and provenances and a decline in photochemistry functionality at the I–P phase (ΔVIP) in Q. frainetto, thus indicating a decline of the content of PSI in this species. This result was confirmed by the findings of MR analysis, with the speed of reduction and subsequent oxidation of PSI (VRED and VOX) strongly correlated to the amplitude of ΔVIP. The photosynthetic rates (net photosynthesis, PN) and growth were correlated with the parameters associated with PSI content and function, rather than those related to PSII. The low performance of Q. frainetto in the common garden seems to be related to early foliar senescence with the depletion of nitrogen, due to suboptimal climatic and edaphic conditions. Chlorophyll fluorescence allowed discrimination of populations of oak species and individuation of the less (or/and best) suitable species for future forest ecology and management purposes.

Effects of Epiphytic Load on the Photosynthetic Performance of a Seagrass, Zostera marina, Monitored In Vivo by Chlorophyll Fluorescence Imaging

2009 ◽  
Vol 52 (2) ◽  
pp. 171-175 ◽  
Author(s):  
Min-Hyuk Oh ◽  
Dong Woo Kang ◽  
Tae Hoon Kim ◽  
Yong-Hwan Moon ◽  
Byoung Yong Moon ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Fluorescence Imaging ◽  
Zostera Marina ◽  
Photosynthetic Performance ◽  
Chlorophyll Fluorescence Imaging

Responses of Chlorophyll Fluorescence, Stomatal Conductance, and Net Photosynthesis Rates of Four Rubber (Hevea brasiliensis) Genotypes to Drought

2013 ◽  
Vol 844 ◽  
pp. 11-14
Author(s):  
Aidil Azhar ◽  
Jate Sathornkich ◽  
Ratchanee Rattanawong ◽  
Poonpipope Kasemsap
Keyword(s):  
Chlorophyll Fluorescence ◽  
Stomatal Conductance ◽  
Gas Exchange ◽  
Leaf Gas Exchange ◽  
Net Photosynthesis ◽  
Partial Recovery ◽  
Gas Exchange Parameters ◽  
Leaf Chlorophyll ◽  
Drought Conditions ◽  
Leaf Chlorophyll Fluorescence

This experiment aimed to evaluate the leaf chlorophyll fluorescence and gas exchange response to drought conditions of young rubber plants with different scions. Buds from four genotypes of a progeny derived from crossed clones of RRIM600 x RRII105 from Nongkhai Rubber Research Center, T187, T186, T149 and T172, were grafted to RRIM 600 rootstocks. Eight-month old plants with two flushes were used in this study. Two levels of water treatment were used, drought condition (W1) and well-watered as control (W0). Leaf chlorophyll fluorescence, stomatal conductance (gs) and net photosynthesis rate (Pn) were investigated in three phases: before drought, during drought and after re-watering. Leaf gas exchange parameters were measured using Li-6400 (LiCor Inc.). Leaf chlorophyll fluorescence was measured using FluorPen FP 100 (Photon Systems Instruments). Before drought, genotype T186 had the greatest net photosynthesis rates followed by T172, T187 and T149; there was no difference in maximum quantum yield of photosystem II (Fv/Fm) and performance index on absorption basis (PIABS). Drought conditions caused reduction in stomatal conductance, net photosynthesis rates, and leaf chlorophyll fluorescence in all genotypes. In re-watering conditions, genotype T186 and T172 experienced quick recovery while the others showed partial recovery but the values of all parameters did not reach previous levels before treatment.

scholarly journals Interpreting common garden studies to understand cueing mechanisms of spring leafing phenology in temperate and boreal tree species

Silva Fennica ◽  
2020 ◽  
Vol 54 (5) ◽  
Author(s):  
Carl Salk
Keyword(s):  
Climate Change ◽  
Tree Species ◽  
Climate Change Impacts ◽  
Common Garden ◽  
Weather Conditions ◽  
High Elevation ◽  
Long Distance ◽  
Climate Change Responses ◽  
Critical Photoperiod ◽  
Leafing Phenology

Trees are particularly susceptible to climate change due to their long lives and slow dispersal. However, trees can adjust the timing of their growing season in response to weather conditions without evolutionary change or long-distance migration. This makes understanding phenological cueing mechanisms a critical task to forecast climate change impacts on forests. Because of slow data accumulation, unconventional and repurposed information is valuable in the study of phenology. Here, I develop and use a framework to interpret what phenological patterns among provenances of a species in a common garden reveal about their leafing cues, and potential climate change responses. Species whose high elevation/latitude provenances leaf first likely have little chilling requirement, or for latitude gradients only, a critical photoperiod cue met relatively early in the season. Species with low latitude/elevation origins leafing first have stronger controls against premature leafing; I argue that these species are likely less phenologically flexible in responding to climate change. Among published studies, the low to high order is predominant among frost-sensitive ring-porous species. Narrow-xylemed species show nearly all possible patterns, sometimes with strong contrasts even within genera for both conifers and angiosperms. Some also show complex patterns, indicating multiple mechanisms at work, and a few are largely undifferentiated across broad latitude gradients, suggesting phenotypic plasticity to a warmer climate. These results provide valuable evidence on which temperate and boreal tree species are most likely to adjust in place to climate change, and provide a framework for interpreting historic or newly-planted common garden studies of phenology.

Growth and Photosynthetic Responses to Manganese and Copper Deficiencies in Wheat (Triticum aestivum) and Barley Grass (Hordeum glaucum and H. leporinum)

1988 ◽  
Vol 15 (3) ◽  
pp. 429 ◽  
Author(s):  
PE Kriedemann ◽  
JE Anderson
Keyword(s):  
Chlorophyll Fluorescence ◽  
Leaf Gas Exchange ◽  
Control Level ◽  
Co2 Exchange ◽  
Initial Slope ◽  
O2 Evolution ◽  
Mn Deficiency ◽  
Co2 Partial Pressure ◽  
In Vivo Chlorophyll Fluorescence

Wheat and barley grass were raised as seedlings in aerated solution cultures under high-pressure sodium vapour lamps in a growth cabinet. Manganese and copper were provided over a wide span of concentrations to induce a range in deficiency symptom expression. Plant response was documented in terms of biomass gain, in vivo chlorophyll fluorescence, CO2-saturated O2 evolution by leaf slices, single leaf H2O/CO2 exchange and A(pI) curves (assimilation as a function of intercellular CO2 partial pressure) at saturating light. Photosynthetic dysfunction due to trace element deficiency lowered O2 evolution (both area and chlorophyll basis) and slowed down leaf gas exchange. Both initial slope and CO2-saturated phases of A(pi) curves were similarly affected in the two species under either Cu or Mn deficiency. Induction kinetics of in vivo chlorophyll fluorescence proved distinctive for both species. Mn deficiency was often manifest as increased constant-yield (Fo) in combination with much reduced variable fluorescence (Fv). Increased ratio of Fo/ Fv was confirmed as a useful index for early diagnosis of Mn deficiency regardless of leaf Cu status. Barley grass (both H. glaucum Steud. and H. leporinum Link) was more tolerant of low Mn and Cu status than wheat, especially in terms of growth and photosynthetic response to Mn deficiency. Wheat plants made little growth once Mn supply was reduced to 10% of control level whereas barley grass was only moderately constrained.

Diurnal changes in leaf gas exchange and chlorophyll fluorescence in tropical tree species with contrasting light requirements

1999 ◽  
Vol 14 (2) ◽  
pp. 77-88 ◽  
Author(s):  
Atsushi Ishida ◽  
Takashi Nakano ◽  
Yoosuke Matsumoto ◽  
Mutsumi Sakoda ◽  
Lai Hoe Ang
Keyword(s):  
Chlorophyll Fluorescence ◽  
Gas Exchange ◽  
Tree Species ◽  
Leaf Gas Exchange ◽  
Tropical Tree ◽  
Diurnal Changes ◽  
Tropical Tree Species ◽  
Light Requirements

In Vivo Fluorescence of Chlorophyll A: Estimation of Phytoplankton Biomass and Activity in Římov Reservoir (Czech Republic)

1993 ◽  
Vol 28 (6) ◽  
pp. 29-33 ◽  
Author(s):  
V. Vyhnálek ◽  
Z. Fišar ◽  
A. Fišarová ◽  
J. Komárková
Keyword(s):  
Czech Republic ◽  
Chlorophyll Fluorescence ◽  
Primary Production ◽  
Chlorophyll A ◽  
Phytoplankton Biomass ◽  
In Vivo Fluorescence ◽  
Fluorescence Of Chlorophyll A ◽  
Římov Reservoir ◽  
Natural Phytoplankton

The in vivo fluorescence of chlorophyll a was measured in samples of natural phytoplankton taken from the Římov Reservoir (Czech Republic) during the years 1987 and 1988. The fluorescence intensities of samples either with or without addition of 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron, DCMU) were found reliable for calculating the concentration of chlorophyll a during periods when cyanobacteria were not abundant. The correction for background non-chlorophyll fluorescence appeared to be essential. No distinct correlation between a DCMU-induced increase of the fluorescence and primary production of phytoplankton was found.

Sign in / Sign up

Export Citation Format

Share Document