Comparative photoinhibition of a high and a low altitude ecotype of tomato (Lycopersicon hirsutum) to chilling stress under high and low light conditions

Jung, Sunyo; Steffen, Kenneth L.; Lee, Hee Jae

doi:10.1016/s0168-9452(98)00051-x

Cited by 24 publications

(21 citation statements)

References 36 publications

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“…To make the results of this study comparable to other studies on cold tolerance in tomato species (Smillie & Nott ; Jung et al . ; Venema et al . ; Chilian et al .…”

Section: Methodsmentioning

confidence: 99%

Adaptation to low temperatures in the wild tomato species Solanum chilense

et al. 2016

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Molecular adaptation to abiotic stresses in plants is a complex process based mainly on the modifications of gene transcriptional activity and the alteration of protein-protein interactions. We used a combination of population genetic, comparative transcriptomic and plant physiology approaches to investigate the mechanisms of adaptation to low temperatures in Solanum chilense populations distributed along Andean altitudinal gradients. We found that plants from all populations have high chilling tolerance, which does not correlate with temperatures in their native habitats. In contrast, tolerance to freezing shows a significant association with altitude and temperature variables. We also observed the differences in expression patterns of cold-response genes between plants from high- and low-altitude populations. These results suggest that genetic adaptations to low temperatures evolved in high-altitude populations of S. chilense. At the transcriptional level, these adaptations may include high levels of constitutive expression of the genes encoding ICE1, the key transcription factor of the cold signalling pathway, and chloroplast ω-3 fatty acid desaturase FAD7. At the sequence level, a signature of selection associated with the adaptation to high altitudes was detected at the C-terminal part of ICE1 encoding the ACT regulatory domain.

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“…To make the results of this study comparable to other studies on cold tolerance in tomato species (Smillie & Nott ; Jung et al . ; Venema et al . ; Chilian et al .…”

Section: Methodsmentioning

confidence: 99%

Adaptation to low temperatures in the wild tomato species Solanum chilense

et al. 2016

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“…temperature, Jung et al 1998;water deficits, herbicides, Iturbe-Ormaetxe et al 1998; low-CO 2 , Gilmore and Björkman 1994]. CO 2 was not a limiting factor in this study.…”

Section: Low-o 2 and The Xanthophyll Cyclementioning

confidence: 50%

The interrelationship between the lower oxygen limit, chlorophyll fluorescence and the xanthophyll cycle in plants

et al. 2011

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The lower oxygen limit (LOL) in plants may be identified through the measure of respiratory gases [i.e. the anaerobic compensation point (ACP) or the respiratory quotient breakpoint (RQB)], but recent work shows it may also be identified by a sudden rise in dark minimum fluorescence (F(o)). The interrelationship between aerobic respiration and fermentative metabolism, which occur in the mitochondria and cytosol, respectively, and fluorescence, which emanates from the chloroplasts, is not well documented in the literature. Using spinach (Spinacia oleracea), this study showed that F(o) and photochemical quenching (q(P)) remained relatively unchanged until O(2) levels dropped below the LOL. An over-reduction of the plastoquinone (PQ) pool is believed to increase F(o) under dark + anoxic conditions. It is proposed that excess cytosolic reductant due to inhibition of the mitochondria's cytochrome oxidase under low-O(2), may be the primary reductant source. The maximum fluorescence (F(m)) is largely unaffected by low-O(2) in the dark, but was severely quenched, mirroring changes to the xanthophyll de-epoxidation state (DEPS), under even low-intensity light (≈4 μmol m(-2) s(-1)). In low light, the low-O(2)-induced increase in F(o) was also quenched, likely by non-photochemical and photochemical means. The degree of quenching in the light was negatively correlated with the level of ethanol fermentation in the dark. A discussion detailing the possible roles of cyclic electron flow, the xanthophyll cycle, chlororespiration and a pathway we termed 'chlorofermentation' were used to interpret fluorescence phenomena of both spinach and apple (Malus domestica) over a range of atmospheric conditions under both dark and low-light.

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“…The mechanisms involved differ, depending on species and cultivars, the degree of hardiness, irradiance, temperature, and the duration of the chilling stress (Guy 1990, Thomashow ---1999. In past years, Chl fluorescence measurements were commonly used to study the responses of plants to low temperatures, including the functioning of the photosynthetic apparatus in maize (Massacci et al 1995, Janda et al 1998, Kościelniak and Biesaga-Kościelniak 2006, rice (Sthapit et al 1995), bean (Guy et al 1997, Melkonian et al 2004, potato (Havaux and Davaud 1994), barley (Król et al 1999), wheat (Öquist et al 1993), spinach (Schöner andKrause 1990, van Wijk andvan Hasselt 1993), and tomato (Jung et al 1998) both in controlled environments and in the field under different chilling. Moreover, Chl fluorescence measurements have been used in screening for cold tolerance in cultivars (Dolstra et al 1994, Ribas-Carbo et al 2000.…”

Section: --mentioning

confidence: 99%

“…In healthy leaves, the F v /F m was close to 0.8, a value typical for uninhibited plants. A lower value indicates that a portion of the PS2 RCs was damaged (Somersalo et al 1998, Jung et al 1998.…”

Section: --mentioning

confidence: 99%

“…Plants adapt photosynthesis within a certain range to prevailing environment, and the sensitivity of photosynthesis to stress varies among plant species and cultivars. Chilling stress reduces the capacity of photosynthetic systems to utilize incident photons and leads to photoinhibition (Jung et al 1998). Photoinhibition of photosynthesis is characterized by a reduction in the quantum yield of photochemistry and a decrease in chlorophyll (Chl) fluorescence.…”

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confidence: 99%

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Chilling stress and chilling tolerance of sweet potato as sensed by chlorophyll fluorescence

Lin¹,

Hwang²,

Lo³

2007

Photosynt.

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We studied changes in the chlorophyll (Chl) fluorescence components in chilling-stressed sweet potato (Ipomoea batatas L. Lam) cv. Tainung 57 (TN57, chilling-tolerant) and cv. Tainung 66 (TN66, chilling-susceptible). Plants under 12-h photoperiod and 400 μmol m -2 s -1 irradiance at 24/20 °C (day/night) were treated by a 5-d chilling period at 7/7 °C. Compared to TN66, TN57 exhibited a significantly greater basic Chl fluorescence (F 0 ), maximum fluorescence (F m ), maximum fluorescence yield during actinic irradiation (F m '), and the quantum efficiency of electron transport through photosystem 2, PS2 (Ф PS2 ). Chilling stress resulted in decrease in the potential efficiency of PS2 (F v /F m ), Ф PS2 , nonphotochemical fluorescence quenching (NPQ), non-photochemical quenching (q N ), and the occurrence of chilling injury in TN66. Chilling increased the likelihood of photoinhibition, characterized by a decline in the Chl fluorescence of both cultivars, and photoinhibition during low temperature stress generally occurred more rapidly in TN66.Additional key words: cultivar differences; Ipomoea; photosystem 2; quantum yield. --Under natural conditions, photosynthesis is regulated biochemically to maintain a balance between the rates of its component processes and concentrations of metabolites in response to environment changes (Singsaas et al. 2000). Chloroplasts are the major target of many environmental stress factors. Plants respond to sudden and sustained fluctuations in irradiance and high and low temperatures via their chloroplast molecular redox signalling transduction mechanisms that initiate and network to induce marked modulations in chloroplast components, ultimately leading to acclimation of the photosynthetic apparatus (Anderson et al. 1997). Plants adapt photosynthesis within a certain range to prevailing environment, and the sensitivity of photosynthesis to stress varies among plant species and cultivars. Chilling stress reduces the capacity of photosynthetic systems to utilize incident photons and leads to photoinhibition (Jung et al. 1998). Photoinhibition of photosynthesis is characterized by a reduction in the quantum yield of photochemistry and a decrease in chlorophyll (Chl) fluorescence. Photoinhibition entails not only the inhibition of photosystem 2 (PS2) but also increases thermal de-excitation of excited Chl (Demmig-Adams and Adams 1992). Photoinhibition of photosynthesis has been reported for chillingsusceptible plants under high irradiance at chilling temperatures of 0-15 °C. Furthermore, annual plants of temperate regions undergo photoinhibition in winter when they are exposed to moderate irradiance at chilling temperatures (Somersalo and Krause 1989). Several indicators support this assumption: periods of low temperature are accompanied by a lower Chl content, decreased activities of Calvin cycle enzymes, poor development of the chloroplasts, an increased pool size of xanthophyll pigments, reduced photosynthetic capacity, decreased quantum efficiency of PS2 and CO 2 fixation, and increa...

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Comparative photoinhibition of a high and a low altitude ecotype of tomato (Lycopersicon hirsutum) to chilling stress under high and low light conditions

Cited by 24 publications

References 36 publications

Adaptation to low temperatures in the wild tomato species Solanum chilense

Adaptation to low temperatures in the wild tomato species Solanum chilense

The interrelationship between the lower oxygen limit, chlorophyll fluorescence and the xanthophyll cycle in plants

Chilling stress and chilling tolerance of sweet potato as sensed by chlorophyll fluorescence

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