Seasonal Trends in Carbon Dioxide Absorption, Cold Resistance, and Transpiration of Some Evergreens

Parker, Johnson

doi:10.2307/1932088

Cited by 53 publications

(33 citation statements)

References 13 publications

(15 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However freezing tolerance is not necessarily coupled with inactivity of photosynthesis. Winter annuals, geophytes and many winter-green perennial herbs and woody plants are able to photosynthesize throughout the winter or to quickly resume photosynthesis in a warmer winter phase while in a highly tolerant (vital tolerance limit at -25OC and lower) stage (Parker, 1961;Bauer et al, 1975;Levitt, 1980;Larcher and Bauer, 198 1 ;Oquist and Martin, 1986). Rutten and Santarius (1988) discussed to what extent biochemical changes that cause freezing tolerance and influence photosynthetic activity are linked at the cellular and chloroplast level.…”

Section: Photosynthetic Activity and Freezing Tolerancementioning

confidence: 99%

Plant Activity under Snow and Ice, with Particular Reference to Lichens

Kappen¹

1993

ARCTIC

132

View full text Add to dashboard Cite

ABSTRACT. In polar ecosystems primary producers have to cope with the very limited living conditions of the harsh climate. Vascular plants in the Northern Hemisphere extend to the northem-most edges of the continents, but only two taxa are present as far south as the Antarctic Peninsula region in the Southern Hemisphere. Lower plants, lichens in particular, become more important with increasing latitudes and form the dominant element of the Antarctic vegetation. Based on recent investigations and literature, this paper discusses to what extent lichens are better adapted to snow and ice than vascular plants. Vascular plants in high latitudes have high freezing tolerances but are photosynthetically inactive in winter (e.g., evergreen coniferous species), while lichens in a highly freezing-tolerant stage can be active and productive under winter conditions. Vascular plants can be active under snow but have no photosynthesis if the tissue is frozen. Recent in situ measurements indicate that lichens are able to photosynthesize at temperatures below -10°C, apparently in the frozen state. It was also found that photosynthetic CO2 exchange of dry thalli can be activated by snow during frost. Water uptake during winter was also recorded for coniferous trees at the arctic timberline. This uptake may reduce water stress in conifers but apparently has no relevance for metabolic activity. Water uptake from snow and metabolic activity at -10°C are possible for lichens because they are able to photosynthesize at water potentials lower than -20 MPa. Although lichens are adapted to be active in snow at low temperatures, strong light on clear days may inhibit the photosynthetic apparatus. Key words: lichens, higher plants, water relations, life strategies, photosynthetic production, ice, snow RBSUMÉ. Dans les kosystbmes polaires, les producteurs primaires doivent s'accommoder des conditions de vie prkaires dues à la rigueur du climat. L'habitat des plantes vasculaires de l'hkmisphbre borkal s'ktend aux confins nordiques des continents, mais seuls 2 taxons sont prksents à l'extrême sud de la rkgion de la phinsule Antarctique de l'hkmisphbre austral. Plus la latitude augmente, plus les vkgktaux infkrieurs, en particulier les lichens, prennent de l'importance et forment l'klkment dominant de la vkgktation antarctique. S'appuyant sur des recherches et de la documentation rkcentes, cet article discute du degrk auquel les lichens sont mieux adaptks à la neige et à la glace que les plantes vasculaires. Sous de hautes latitudes, ces dernibres ont une tolerance klevke au gel mais sont inactives en hiver sur le plan de la photosynthbe (p. ex., les espkces conifkriennes à feuilles persistantes), alors que les lichens, dans un &at tolkrant trbs bien le gel, peuvent être actifs et productifs en hiver. Les plantes vasculaires peuvent être actives sous la neige, mais elles ne font pas de photosynthbse si le tissu est gelé. Des mesures prises rkcemment in situ rkvblent que les lichens peuvent faire la photosynthbse à des temphatures infkrieures ...

show abstract

Section: Photosynthetic Activity and Freezing Tolerancementioning

confidence: 99%

Plant Activity under Snow and Ice, with Particular Reference to Lichens

Kappen¹

1993

ARCTIC

132

View full text Add to dashboard Cite

show abstract

“…Bourdeau 1959). Parker (1961) concludes that the ability to photosynthesize during cold weather falls off to a minimum by about February, associated with changes in the chloroplasts. Eventually net photosynthesis becomes negative and such plants need a period of between a few hours and a few days to regain their ability to photosynthesize when moved to a warmer environment.…”

Section: A Carlisle and A H F Brown 277mentioning

confidence: 99%

“…Although Scots pine has a maximum cold tolerance (see II and VIe) as low as-26 7? C (Parker 1961), it is capable of growing in sub-tropical conditions (Kaminskpy-Krbger, Wilhelmi & Bergemann 1959). Relatively tolerant of drought; most susceptible to drought damage in the thicket or pole stage (Ceuca 1957;Sokolov 1961).…”

Section: A Carlisle and A H F Brown 277mentioning

confidence: 99%

See 1 more Smart Citation

Pinus Sylvestris L.

Carlisle¹,

Brown²

1968

The Journal of Ecology

148

View full text Add to dashboard Cite

JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.Wiley, British Ecological Society are collaborating with JSTOR to digitize, preserve and extend access to

show abstract

“…Iwanoff and Kossowitch (1929) found that photosynthetic activity of Scotch pine decreased sharply during winter. The effect of temperature on photosynthesis and respiration of other coniferous species has been investigated by Clark (1961), Stalfelt (1924), Decker (1944), Tranquillini (1955, Pisek and Rehner (1958), Pisek and Winkler (1959), Pharis and Woods (1960), Parker (1961), and Negisi and Satoo (1961a). In most con iferous species studied, maximum net photosynthesis occurred in the range of 10 to 25°C, with more northerly species reaching maxima in the lower half of the range.…”

Section: Effect Of Environmental Factorsmentioning

confidence: 99%

Photosynthesis, respiration and growth of Scotch pine seedlings

Gordon

View full text Add to dashboard Cite

Seasonal Trends in Carbon Dioxide Absorption, Cold Resistance, and Transpiration of Some Evergreens

Cited by 53 publications

References 13 publications

Plant Activity under Snow and Ice, with Particular Reference to Lichens

Plant Activity under Snow and Ice, with Particular Reference to Lichens

Pinus Sylvestris L.

Photosynthesis, respiration and growth of Scotch pine seedlings

Contact Info

Product

Resources

About