Image from Google Jackets

Interactions betweeen Mild NaCl Stress and Red Light during Lettuce (Lactuca sativa L. cv Grand Rapids)Seed Germination

Tipo de material: TextoTextoSeries ; Plant Physiology, 19, p.1-4, 1985Trabajos contenidos:
  • Scorer, Keith N
  • Epel, B.L
  • Waisel, Yoav
Tema(s): Recursos en línea: Resumen: The sensitivity of lettuce (Lactuca sativa L. cv Grand Rapids)seeds to red light was reduced by NaCQ concentrations which had no effect upon the germination of continuously illuminated seeds. The germination capacity of the seeds was fully restored by increased red light exposures. Indirect evidence indicates that NaCI does not affect the photoconversion of red-absorbing form of phytochrome to the far-red absorbing form of phytochrome. Instead, the increased red light requirements are attributable to increases in the threshold levels of the far red absorbing form of phytochrome necessary to induce germination and to changes in the slopes of the fluence-response curves. Results also show that the sensitivity of the seeds to NaCI decreased as the time between red light irradiation and the imposition of NaCl stress increased
Tags from this library: No tags from this library for this title. Log in to add tags.
Star ratings
    Average rating: 0.0 (0 votes)
Holdings
Item type Current library Collection Call number Status Date due Barcode
Documentos solicitados Documentos solicitados CICY Documento préstamo interbibliotecario Ref1 B-17586 (Browse shelf(Opens below)) Available

The sensitivity of lettuce (Lactuca sativa L. cv Grand Rapids)seeds to red light was reduced by NaCQ concentrations which had no effect upon the germination of continuously illuminated seeds. The germination capacity of the seeds was fully restored by increased red light exposures. Indirect evidence indicates that NaCI does not affect the photoconversion of red-absorbing form of phytochrome to the far-red absorbing form of phytochrome. Instead, the increased red light requirements are attributable to increases in the threshold levels of the far red absorbing form of phytochrome necessary to induce germination and to changes in the slopes of the fluence-response curves. Results also show that the sensitivity of the seeds to NaCI decreased as the time between red light irradiation and the imposition of NaCl stress increased

There are no comments on this title.

to post a comment.