Effects of High Night Temperature on Crassulacean Acid Metabolism (CAM) Photosynthesis of<i>Kalanchoë pinnata</i>and<i>Ananas comosus</i>

Lin, Qi; Abe, Syunsuke; Nose, Akihiro; Sunami, Akira; Kawamitsu, Yoshinobu

doi:10.1626/pps.9.10

Cited by 9 publications

(5 citation statements)

References 26 publications

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“…This relationship was reported for other CAM plants (Larcher, 1980;Lösch and Kappen, 1983;Kappen and Lösch, 1984;Krause et al, 2016) as well as for another CAM bromeliad, for which Chaves et al (2015) showed that, under controlled conditions, leaf acidity decreases and thermal tolerance increases as temperature increases. This mechanism may have evolved due to the increase in tonoplast permeability and acid remobilization from vacuoles in response to higher temperatures (Friemert et al, 1988;Behzadipour et al, 1998;Savchenko et al, 2002;Lin et al, 2006), avoiding acid leakage during a warming event. On the other hand, in agreement with our observations for V. bituminosa, other studies have also reported daily variations of thermal tolerance in C 3 plants (e.g., Braun et al, 2002;Froux et al, 2004;Campos, 2011).…”

Section: Parameter Measuredmentioning

confidence: 99%

How are endemic and widely distributed bromeliads responding to warming temperatures? A case study in a Brazilian hotspot

Chaves

Leal

Lemos-Filho

2018

Flora

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The increase in mean global temperature is causing extensive changes in ecosystems. However, little is yet known about the heat tolerance of neotropical plant species. Here, we investigate heat tolerance variation in both restricted and widely distributed bromeliad species co-occurring in campo rupestre, a megadiverse ecosystem in central and eastern Brazil. We determined the heat tolerance of the photosynthetic apparatus using chlorophyll fluorescence measurements to test if the endemic species Vriesea minarum is more heat sensitive than two widely distributed species, Vriesea bituminosa and Aechmea nudicaulis. Furthermore, we tested if the distinct photosynthetic metabolisms of the species, sun exposure, and rainfall seasonality of campo rupestre influence this outcome. Our results show that, contrary to our expectations, the endemic campo rupestre species did not show the greatest heat sensitivity, but did have one of the lowest heat tolerance plasticities. The CAM bromeliad A. nudicaulis was more heat tolerant than the other bromeliad species, but both heat tolerance and its plasticity are highly affected by sun exposure and the rainfall seasonality of campo rupestre. The low values and plasticity of V. minarum thermal tolerance could indicate that the threat of global warming could be greater for this campo rupestre endemic species. Our results also indicate that heat tolerance, especially the ability to withstand stressful temperatures for a long time, is an important parameter that differentiates the ecological strategies of these bromeliads species.

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Section: Parameter Measuredmentioning

confidence: 99%

How are endemic and widely distributed bromeliads responding to warming temperatures? A case study in a Brazilian hotspot

Chaves

Leal

Lemos-Filho

2018

Flora

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“…The lack of significant difference of the titratable acidity between 25 and 35°C at the different times of measurement ( Fig. 1) might be due to increased sensitivity of PEPC to malate at high night temperature (Carter et al 1995;Lin et al 2006). In any case, the nocturnal synthesis and accumulation of organic acid which is an essential component of CAM (Lüttge 2004) further indicates the presence of CAM in cultures kept under a 16 h photoperiod.…”

mentioning

confidence: 91%

“…Temperature is said to affect CAM performance in many ways (Lüttge 2004). For instance, as stated by Lin et al (2006), the catalytic activity of phosphoenolpyruvate carboxylase (PEPC) (an enzyme involved in dark fixation of CO 2 ) increases with increasing temperature. Brandon (1967) reported optimum activity of acid-producing enzymes in CAM at 35°C.…”

mentioning

confidence: 99%

Effects of temperature, photoperiod and culture vessel size on adventitious shoot production of in vitro propagated Huernia hystrix

Amoo

Finnie

Staden

2009

Plant Cell Tiss Organ Cult

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High production costs due to low growth rate in vitro and high labour costs are among factors limiting commercial application of micropropagation techniques. The low growth rate could be due to unfavourable or suboptimal environmental and chemical conditions of the cultures. The effects of temperature, photoperiod and culture vessel size were investigated on adventitious shoot production of Huernia hystrix. There were significant increases in shoot proliferation with increased temperature in cultures maintained under a 16 h photoperiod. Slow growth observed at low temperatures (15 and 20°C) offers a potential strategy for cost-effective in vitro storage of H. hystrix germplasm. The maximum adventitious shoots produced per explant and percentage of explants producing shoots (4.2 ± 0.74 and 94% respectively) were observed in cultures maintained at 35°C, the optimum temperature for photosynthesis in plants possessing crassulacean acid metabolism (CAM). The nocturnal accumulation of organic acids in cultures incubated under a 16 h photoperiod further suggest the presence of CAM in this species. On the other hand, cultures kept under continuous light appear to shift to a C-3 photosynthetic pathway. There was a significant decrease in fresh weight of adventitious shoots regenerated per explant as temperature increased. The use of larger culture vessels further increased the shoot proliferation to 5.6 shoots per explant with a potential production of 3,429 shoots per m 2 in the growth room compared to 2,750 shoots per m 2 using culture tubes.

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“…Recently, we investigated the effects of high night temperature on CO 2 exchange and organic acid accumulation in two CAM species, Kalanchoë pinnata and Ananas comosus (pineapple) with the day temperature maintained at 30 ºC. The results showed that K. pinnata lost nocturnal CO 2 uptake completely at night temperature of 37 ºC, whereas pineapple kept significant nocturnal malate accumulation in the vacuole (Lin et al 2006). It has been assumed that the ability to accumulate malate into the vacuole in the dark depends on the actual fluidity of the tonoplast and that effective nocturnal malate storage in CAM plants is facilitated by a relatively rigid tonoplast (Kluge et al 1991, Kliemchen et al 1993.…”

Section: Introductionmentioning

confidence: 99%

Effects of high night temperature on lipid and protein compositions in tonoplasts isolated from Ananas comosus and Kalanchoë pinnata leaves

Lin¹,

Wang²,

Nose³

et al. 2008

Biologia plant.

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Effects of high night temperature on the lipid and protein compositions in the tonoplasts isolated from the leaves of two Crassulacean acid metabolism (CAM) plants, Ananas comosus (pineapple) and Kalanchoë pinnata were studied. The results showed that the phospholipids/protein ratios in the tonoplasts isolated from pineapple and K. pinnata leaves decreased from 1.82 to 1.21 and 2.63 to 1.50, respectively, as the night temperature increased from 20 to 37 ºC. Under high night temperature, relative amount of total unsaturated fatty acids in K. pinnata was increased by 6 %, which was mainly caused by increased C18:2 and C18:3, whereas unsaturated fatty acids, C18:2 and C18:3 in pineapple did not show significant change. The distribution patterns of tonoplast proteins in the two CAM species were different between normal and high night temperature and in K. pinnata, especially those with molecular mass ranging from 66.2 to 97.4 KDa. Compared with normal night temperature, more proteins were found in pineapple, but no difference was found in K. pinnata. Thus, above result indicated that the pineapple tonoplasts could keep higher rigidity under high night temperatures compared to the K. pinnata.

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Effects of High Night Temperature on Crassulacean Acid Metabolism (CAM) Photosynthesis ofKalanchoë pinnataandAnanas comosus

Cited by 9 publications

References 26 publications

How are endemic and widely distributed bromeliads responding to warming temperatures? A case study in a Brazilian hotspot

How are endemic and widely distributed bromeliads responding to warming temperatures? A case study in a Brazilian hotspot

Effects of temperature, photoperiod and culture vessel size on adventitious shoot production of in vitro propagated Huernia hystrix

Effects of high night temperature on lipid and protein compositions in tonoplasts isolated from Ananas comosus and Kalanchoë pinnata leaves

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