Relation of the Daily March of Transpiration to Variations in the Water Content of Foliage Leaves

Livingston, Burton E.; Brown, William Henry

doi:10.1086/330806

Cited by 73 publications

(35 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Livingston and Bruwn (21) concluded that the internal factor, which Livingston (19) had previously suspected to be the cause of the reduction uf the transpiring power of plants in the morning hours, was the lack of water in the cells of the leaf. More recently Mrs. Shreve (29) has obtained similar results, and entirely confirmed the work of Living8ton and Brown.…”

Section: R Esearches On Transpiration In Recent Years Have Resultedmentioning

confidence: 99%

“…It must be borne in mind, however, that in the latter case the plant concerned was one of abnormal behaviour. Livingston and Brown (21) conceived that the change of the evaporating power of the plant tissues was also directly affected by variations in the cell watercontent, again independent of any change of stomatal aperture.…”

Section: R Esearches On Transpiration In Recent Years Have Resultedmentioning

confidence: 99%

See 1 more Smart Citation

Recent Work on Transpiration

Knight

1917

New Phytologist

View full text Add to dashboard Cite

Section: R Esearches On Transpiration In Recent Years Have Resultedmentioning

confidence: 99%

Section: R Esearches On Transpiration In Recent Years Have Resultedmentioning

confidence: 99%

Recent Work on Transpiration

Knight

1917

New Phytologist

View full text Add to dashboard Cite

“…The amount increased after 4 P. M. until at 9 P. M. the maximum amount was present again. Livingston and Brown (1912) reported a decrease in leaf water content of about 2% in the plants with which they worked. Knight (1922) also reported about the same decrease.…”

Section: Relation Of Stomata To Water Loss From the Leavesmentioning

confidence: 99%

Physiology of Stomata of Rumex patientia

Sayre

1923

Science

View full text Add to dashboard Cite

“…The proportioning between the two currents may depend on magnitude and distribution of small temperature gradients within the leaf (6,23). The possibility that the mesophyll may also offer a resistance to evaporation of appreciable magnitude has been debated for more than 70 years (16,23). Various authors (e.g.…”

mentioning

confidence: 99%

On the Resistance to Transpiration of the Sites of Evaporation within the Leaf

Farquhar

Raschke²

1978

Plant Physiol.

112

View full text Add to dashboard Cite

The rates of transpiration from the upper and lower surfaces of leaves of Gossypium hirsutum, Xanthium stnrumarium, and Zes mays were compared with the rates at which helium diffused across those leaves. There was no evidence for effects of CO2 concentration or rate of evaporation on the resistance to water loss from the evaporating surface ("resistance of the mesophyll wall to transpiration") and no evidence for any significant wall resistance in turgid tissues. The possible existence of a wai resistance was also tested in leaves of CommeHins commaunis and Tulipa gesnenana whose epidermis could be easily peeled. Only when an epidermis was removed from a leaf, evaporation from the mesophyll tissue declined. We conclude that under conditions relevant to studies of stomatal behavior, the water vapor pressure at the sites of evaporation is equal to the saturation vapor pressure.The stomata are considered to be the main sites of resistance to transpiration within the leaf. The bulk of this water is thought to evaporate from the mesophyll tissue, but an appreciable amount may also come from the inner walls of epidermal cells bounding the substomatal cavities (e.g. 17). The proportioning between the two currents may depend on magnitude and distribution of small temperature gradients within the leaf (6, 23). The possibility that the mesophyll may also offer a resistance to evaporation of appreciable magnitude has been debated for more than 70 years (16,23). Various authors (e.g. 3) have concluded that the characteristics of the liquid flow system do not directly affect the rates of evaporation from leaves, but have ignored the effects of an internal cuticle which is reported to line the mesophyll cell walls (24). The hydraulic permeability of this cuticle is unknown but a value of 10-" msec-' bar-', which has been determined for storage tissue (1), is eluivalent to a resistance to diffusion of water vapor of 2 sec cmu-when the area of the mesophyll surface is 10 times that of the leaf (13). Several authors (10, 13, 15, from the outside air across the epidermis to the intercellular spaces (18) would be overestimated to the same degree. As a result of this, the intercellular CO2 concentration would be underestimated. Kaplan (14) found that the wall resistance to transpiration in A triplex halimus in air containing 300 ,u C02/1 air was much higher than at 0 ul 1-'. This raises the possibility that earlier measurements of wall resistance, which were made in air kept free of CO2 in order to reduce stomatal resistance, were underestimates. Jarvis and Slatyer (13) found that the wall resistance increased with increasing transpiration rate and with decreasing leaf water content.

show abstract

Relation of the Daily March of Transpiration to Variations in the Water Content of Foliage Leaves

Abstract: 3 LIVINGSTON, B. E., (i) Light intensity and transpiration. BOT. GAZ. 52:417-438. i9ii., (2) A radio-atmometer for comparing light intensities. Plant World 4: 96-99. I9II.

Cited by 73 publications

References 0 publications

Recent Work on Transpiration

Recent Work on Transpiration

Physiology of Stomata of Rumex patientia

On the Resistance to Transpiration of the Sites of Evaporation within the Leaf

Contact Info

Product

Resources

About