Altitudinal and seasonal variation of protective and photosynthetic pigments in leaves of the world's highest elevation trees Polylepis tarapacana (Rosaceae)

González, Juan Antonio Suarez; Gallardo, M.; Boero, C.; Cruz, M. Liberman; Prado, Fernando Eduardo

doi:10.1016/j.actao.2007.03.002

Cited by 42 publications

(35 citation statements)

References 40 publications

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“…In the present study, we showed that the altitude effect was not significant for chlorophyll concentrations in both life forms, similar to the altitudinal pattern found in the Sajama volcano region (González et al 2007). The absence of decline in the chlorophyll concentration along the altitudinal gradient probably helps maintain a relatively high photosynthetic capacity at high altitudes (Körner andDiemer 1987, 1994;Friend et al 1989;Cordell et al 1999;Shi et al 2006).…”

Section: Differences In Species Group Responses Of Leaf Pigments and supporting

confidence: 66%

“…One is to change the ratio of leaf pigments. A large body of evidence has shown that plants tend to increase the ratio of carotenoids : chlorophyll so as to be photoprotected against excess excitation energy that cannot be used in photosynthesis (Demmig-Adams and Adams 1996;Gilmore 1997;González et al 2007) and against UV-B radiation (e.g. Middleton and Teramura 1993).…”

Section: Introductionmentioning

confidence: 99%

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Different responses in leaf pigments and leaf mass per area to altitude between evergreen and deciduous woody species

Yang

2013

Aust. J. Bot.

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Abstract. Leaf chlorophyll content is positively associated with photosynthetic capacity and nutrient status, but its functional ecology has seldom been examined thus far. In the present study, we measured leaf chlorophyll and carotenoid concentrations, determined chlorophyll a : chlorophyll b (Chl a : Chl b) and carotenoids : chlorophyll ratios and measured leaf mass per area (LMA) for 63 woody dicot species, including 24 evergreen species and 39 deciduous species, at two altitudes (1800-2400 and 2400-2800 m a.s.l.) of Gongga Mountain, south-west China. The aim of the present study was to determine whether evergreen and deciduous species differ in terms of leaf pigment concentrations and LMA in response to environmental differences associated with changes in elevation. In both life forms, the altitude effect was not significant for chlorophyll and carotenoid concentrations. However, the Chl a : Chl b ratio was significantly higher in evergreen species, whereas LMA was significantly higher in deciduous species, at the high versus low altitude. These observations suggest that evergreen and deciduous species may have different strategies to protect leaf pigments. Mass-based leaf pigment concentrations were lower in evergreen compared with deciduous species, especially at high altitude. LMA was higher in evergreen than deciduous species at both altitudes. Pigment concentrations were negatively correlated with LMA in both life forms at both altitudes. The slope of LMA vs mass-based leaf pigment concentrations was significantly more negative for deciduous than evergreen species, and at low versus high altitude for deciduous species. The findings suggest that deciduous species may invest less photosynthate in leaf pigments but more in inactive components in stressful environments than do evergreens. Thus, the same magnitude of variation in LMA may have different consequences on leaf carbon balance between evergreen and deciduous species, which helps explain why evergreen species are often more likely to occupy more stressful environments than deciduous species.

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Section: Differences In Species Group Responses Of Leaf Pigments and supporting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Different responses in leaf pigments and leaf mass per area to altitude between evergreen and deciduous woody species

Yang

2013

Aust. J. Bot.

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“…The analysis of leaf UAC found in the high altitude specialist Polylepis tarapacana (high altitude quenoa) from two sites (4300 and 5000 m.a.s.l.) again reveals a strong positive relationship between UACs and altitude with a 35% (winter) and 32% (summer) increase in UACs between the sites in response to a 15% increase in winter UV-B flux and a 12% increase in summer UV-B flux between the two sites (Gonzalez et al, 2007), demonstrating that the UAC/altitude relationship is sensitive to changes in UV-B over a very wide altitudinal range.…”

Section: Plant Responses To Uv-b Radiationmentioning

confidence: 95%

“…For example, cloud cover frequently increases with altitude in mountainous terrain. Ecophysiological, morphological and biochemical investigations have demonstrated that plants are adapted to the high flux of UV-B radiation associated with high altitude Ziska et al, 1992;Rozerma et al, 1997;Neitzke and Therburg, 2003;Gonzalez et al, 2007). Meta-analysis also suggests that UACs response to changes in UV-B radiation flux are rapid (Searles et al, 2001) implying that plants are responding to maximum UV-B flux characteristic of clear skies.…”

Section: Plant Responses To Uv-b Radiationmentioning

confidence: 99%

“…UV-B changes are however also associated with changes in the solar cycle but the influence of sun spot cycles are limited because these short-term oscillations only result in a small (r1%) change in UV-B flux to the land surface which is of minor significance when compared to changes associated with increases in elevation ($5À20% increase per 1 km, Blumthaler et al, 1992Blumthaler et al, , 1994Blumthaler et al, , 1997Dubrovský , 2000;Gonzalez et al, 2007;Kudish et al, 1997;McKenzie et al, 2001;Pachart et al, 1999;Piazena, 1996;Rigel et al, 1999;Sullivan et al, 1992; Fig. 1).…”

Section: Uv-b Fluxmentioning

confidence: 99%

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A novel palaeoaltimetry proxy based on spore and pollen wall chemistry

Lomax

Fraser

Harrington

et al. 2012

Earth and Planetary Science Letters

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Fruit phytochemical composition and color parameters of 21 accessions of five Rosa species grown in North West Iran

et al. 2019

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BACKGROUND The genus Rosa comprises economically important horticultural plants belonging to the family Rosaceae. Recently, the use of different Rosa species has increased owing to their multipurpose properties (ornamental, food and medicinal uses). In this study, 21 accessions of Rosa genotypes were compared for fruit phytochemical composition and color parameters. RESULTS The highest antioxidant activity (37.86 mg AAE g−1 FW) and total phenolic (8.17 mg GAE g−1 FW), total flavonoid (2.53 mg QUE g−1 FW), total carotenoid (20.21 mg g−1 FW) and ascorbic acid (84.27 mg g−1 FW) contents were observed in G20 (R. canina), G8 (R. canina), G9 (R. canina), G5 (R. damascena) and G10 (R. moschata) respectively. Chlorogenic acid and gallic acid were found as the main phenolic constituents of Rosa fruits. High amounts of apigenin, rutin, quercetin, p‐coumaric acid, cinnamic acid, chlorogenic acid, caffeic acid and gallic acid were obtained in fruit extracts of G6, G14, G6, G8, G19, G9, G19 and G12 respectively. Moreover, the level of color parameters also varied among genotypes. The highest values of a*, b*, L* and chroma were obtained in G4 (R. canina). Based on hierarchical clustering analysis with heat‐map, five groups of accessions were identified. CONCLUSION Different Rosa genotypes are rich in certain phytochemical compounds, with significant variations in their levels being observed. Hence evaluation of Rosa genetic resources can supply valuable data for screening accessions containing high levels of individual phenolics, antioxidants and other bioactive compounds for use in breeding programs and food and pharma industries. © 2019 Society of Chemical Industry

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Altitudinal and seasonal variation of protective and photosynthetic pigments in leaves of the world's highest elevation trees Polylepis tarapacana (Rosaceae)

Cited by 42 publications

References 40 publications

Different responses in leaf pigments and leaf mass per area to altitude between evergreen and deciduous woody species

Different responses in leaf pigments and leaf mass per area to altitude between evergreen and deciduous woody species

A novel palaeoaltimetry proxy based on spore and pollen wall chemistry

Fruit phytochemical composition and color parameters of 21 accessions of five Rosa species grown in North West Iran

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