Salinity Effects on Leaf Anatomy: Consequences for Photosynthesis 1

AUTOR(ES)

Longstreth, David J.

RESUMO

Increasing salinity led to substantially higher ratios of mesophyll surface area to leaf area (Ames/A) for Phaseolus vulgaris and Gossypium hirsutum and a smaller increase for Atriplex patula, a salt-tolerant species. The increase in internal surface for CO2 absorption did not lead to higher CO2 uptake rates, since the CO2 resistance expressed on the basis of mesophyll cell wall area (rcell) increased even more with salinity. The differences among species in the sensitivity of photosynthesis to salinity in part reflect the different Ames/A and rcell responses.

Documentos Relacionados

• Modulation of Water Stress Effects on Photosynthesis by Altered Leaf K+1
• Nutrient Influences on Leaf Photosynthesis: EFFECTS OF NITROGEN, PHOSPHORUS, AND POTASSIUM FOR GOSSYPIUM HIRSUTUM L. 1
• Salinity Effects on Photosynthesis, Carbon Allocation, and Nitrogen Assimilation in the Red Alga, Gelidium coulteri1
• Human Anatomy: Picture Tests
• Anatomy: An Examination Companion