Studies on leaf orientation movements in kidney beans (Phaseolus vulgaris L.). I. The response to light intensity and location of photo-receptor.

Satō, Hajime; Gotoh, Kanji

doi:10.1626/jcs.52.515

Cited by 14 publications

(9 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Unlike C. pallida, the site of light perception for lamina orientation in P. vulgaris (Sato and Gotoh, 1983;Koller and Ritter, 1994) and G. max (Donahue and Berg, 1990) is within the pulvinules. Lamina orientation in the latter plants is controlled by contraction of cells of the pulvinule that are exposed to direct light at a higher fluence rate than cells on the opposing side (Donahue, Berg, and Vogelmann, 1990;Koller and Ritter, 1994).…”

Section: Discussionmentioning

confidence: 99%

“…The orientation of the lamina to directional light and the site of light perception for lamina movement in the trifoliolate leaves of C. pallida differ substantially from those of the trifoliolate leaves of Phaseolus vulgaris and Glycine max. Unlike C. pallida, the site of light perception for lamina orientation in P. vulgaris (Sato and Gotoh, 1983;Koller and Ritter, 1994) and G. max (Donahue and Berg, 1990) is within the pulvinules. Lamina orientation in the latter plants is controlled by contraction of cells of the pulvinule that are exposed to direct light at a higher fluence rate than cells on the opposing side (Donahue, Berg, and Vogelmann, 1990;Koller and Ritter, 1994).…”

Section: Discussionmentioning

confidence: 99%

“…The site of light perception for suntracking reportedly varies with plant species. In the Fabaceae, a site in the pulvinule is reported for Glycine max L. (Donahue and Berg, 1990), Phaseolus vulgaris L. (Sato and Gotoh, 1983), and Macroptilium atropurpureum (Sheriff and Ludlow, 1985), although for the latter species, illumination of the proximal 1-2 mm of the lamina is necessary for complete reorientation. For Lupinus palaestinus Boiss.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Light Perception for Sun‐tracking is on the Lamina in Crotalaria pallida (Fabaceae)

Schmalstig¹

1997

American J of Botany

View full text Add to dashboard Cite

Trifoliolate leaves of Crotalaria pallida Aiton (Fabaceae) exhibit sun-tracking behavior in simulated days and in response to a fixed, oblique light. The site of light perception for sun-tracking is on the lamina, necessitating transport of a signal from the lamina to the site of response (the pulvinule at the base of the leaflet). Evidence for the site of light perception on the lamina includes the following: (1) leaflet movement in response to oblique light is not affected by shading the pulvinule or by illuminating the pulvinule with vertical light; (2) leaflet movement is stopped by shading the lamina while illuminating the pulvinule with oblique light. The proximal end of the leaflet is the most sensitive region for light perception. Light reaching the midveins is not necessary for leaflet reorientation. Presentation times of as little as 10 min followed by darkness resulted in partial leaflet movement in young leaves. This indicates that the signal was not inductive in nature. Estimates of the rate of signal transport range from 3 to 12 cm/h, within the range of phloem transport.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Light Perception for Sun‐tracking is on the Lamina in Crotalaria pallida (Fabaceae)

Schmalstig¹

1997

American J of Botany

View full text Add to dashboard Cite

show abstract

“…The directional light signals (predominantly in the blue part of the spectrum) are also perceived in the pulvinus (Wien and Wallace, 1973;Meyer and Walker, 1981;Sato and Gotoh, 1983;Sheriff and Ludlow, 1985;Donahue and Berg, 1989;Koller and Ritter, 1994). The directional light signals (predominantly in the blue part of the spectrum) are also perceived in the pulvinus (Wien and Wallace, 1973;Meyer and Walker, 1981;Sato and Gotoh, 1983;Sheriff and Ludlow, 1985;Donahue and Berg, 1989;Koller and Ritter, 1994).…”

Section: Downloaded By [The Agamentioning

confidence: 99%

Light-driven movements of the primary leaves of bean (Phaseolus vulgaris L.):A kinetic analysis

Koller¹,

Ritter²,

Heller³

2001

Israel Journal of Plant Sciences

View full text Add to dashboard Cite

The skotonastic and phototropic responses of primary leaves of bean (Phaseolus vulgaris L.) were studied, using one primary leaf as an untreated control for its treated twin. A sudden, drastic step-down in photon fluence rate, ΦFR, resulted in the typical skotonastic downfolding. The magnitude and kinetics of this response were independent of the preceding ΦFR as well as of the initial laminar elevation (at transition). The skotonastic response was eventually followed by increase in laminar elevation, as part of a progressive adaptation to the new (very low) ΦFR. The pulvinus exhibited positive and reversible phototropic curvature in response to adaxial and lateral exposure to high ΦFR. Adaxial exposure at different stages of its adaptation to low ΦFR resulted in very similar positive phototropic responses (rate and magnitude). At saturation, abaxial exposure of the pulvinus to equivalent ΦFR resulted in full reversal, to the same level as exposure of both sectors to low ΦFR, coinciding with the level of the non-exposed controls. Pulvinar responses involve processes of solute transport, tightly coupled to transport of water. The results suggest that phototropic pulvinar responses and those that are part of the skotonastic and adaptation responses are not only different, but are also independent of each other and can take place simultaneously.

show abstract

“…In leaves of Glycine, the evasion response to a given level of leaf water stress was reduced as the fluence rate was lowered (Berg & Heuchelin, 1990). Various laminar reorientations that take place in response to high irradiance and reduce the interception of radiant energy by increasing the angle of light incidence have been reported in diaphototropic leaves of Phaseolus (Wien & Wallace, 1973;Sato & Gotoh, 1983) and Maeroptilium atropurpureum (Ludlow & Bjorkman, 1983. Leaves prevented from reorientating in response to stress by restraining them horizontally exhibited progressive symptoms of photoinhibition of their photosynthetic apparatus Ludlow & Bjorkman, 1983.…”

Section: Leaf Movements Associated With Evasion Of Highirradiance Stressmentioning

confidence: 99%

Light‐driven leaf movements^*

Koller

1990

Plant Cell & Environment

115

View full text Add to dashboard Cite

Abstract. Mature leaves of many plants re‐orientate their laminae photonastically in response to non‐directional light signals, and/or phototropically in response to directional light signals, by flexing of pulvini, most commonly subtending their bases. Physiological and structural specializations of the pulvinus enable it to flex, by rapidly undergoing differential and repeatedly reversible axial volume changes (expansion/contraction) in opposite sectors of its motor tissue. Light‐driven leaf movements are adaptations that contribute to the efficiency of the photosynthetic apparatus in the leaf. The phototropic response maximizes the harvesting of photosynthetically radiant energy. The photonastic response to dark‐to‐light transitions increases the interception of light by unfolding the lamina. Another photonastic response modulates the interception of radiant energy by the lamina, allowing it to evade damage by light in excess of its photosynthetic capacity when the leaf is under stress. The same unidentified blue‐absorbing pigment system appears to be involved in all these responses. Non‐directional light signals are perceived in the pulvinus. Perception of directional light signals may be localized in other parts of the leaf in different plants: for example, the pulvinus in most leguminous species, and the lamina in malvaceous and at least one leguminous species. The perception of non‐directional and directional light signals, their transduction to differential volume changes in the target cells, and their transmission between the two where the sites are separate, are discussed.

show abstract

Studies on leaf orientation movements in kidney beans (Phaseolus vulgaris L.). I. The response to light intensity and location of photo-receptor.

Cited by 14 publications

References 10 publications

Light Perception for Sun‐tracking is on the Lamina in Crotalaria pallida (Fabaceae)

Light Perception for Sun‐tracking is on the Lamina in Crotalaria pallida (Fabaceae)

Light-driven movements of the primary leaves of bean (Phaseolus vulgaris L.):A kinetic analysis

Light‐driven leaf movements^*

Contact Info

Product

Resources

About

Studies on leaf orientation movements in kidney beans (Phaseolus vulgaris L.). I. The response to light intensity and location of photo-receptor.

Cited by 14 publications

References 10 publications

Light Perception for Sun‐tracking is on the Lamina in Crotalaria pallida (Fabaceae)

Light Perception for Sun‐tracking is on the Lamina in Crotalaria pallida (Fabaceae)

Light-driven movements of the primary leaves of bean (Phaseolus vulgaris L.):A kinetic analysis

Light‐driven leaf movements*

Contact Info

Product

Resources

About

Light‐driven leaf movements^*