Based on the vein density results and your knowledge of how the light treatments would impact the light reactions of photosynthesis, how can you explain the high starch concentration and low photosynthetic capacity value in symplastic loader individuals grown in low light and transferred to high light for one week prior to the measurements? Figure Legend: Figure 1. Spinach is an apoplastic phloem loader, while pumpkin is a symplastic phloem loader. An experiment was performed where spinach and pumpkin individuals were grown under three conditions LL - in low light environment (grey bars) HL- in high light environment (white bars) LL->HL in low light environment and then transferred to a high light environment for one week prior to measurements (dark stripes bars) The following measurements were performed on individuals of the two species growing in the three different treatments: vein density, starch content in leaves, and photosynthetic capacity. Statistical tests were performed to test for significant differences in trait values across the different treatments in the two species. Different lower caps letters denote significant differences (a would be different from b and different from c). n.s. means differences across treatments were statistically non-significant. Note: these plants cannot increase the number of plasmodesmata in the phloem with change in the environment.
Based on the vein density results and your knowledge of how the light treatments would impact the light reactions of photosynthesis, how can you explain the high starch concentration and low photosynthetic capacity value in symplastic loader individuals grown in low light and transferred to high light for one week prior to the measurements?
Figure Legend:
Figure 1. Spinach is an apoplastic phloem loader, while pumpkin is a symplastic phloem loader. An experiment was performed where spinach and pumpkin individuals were grown under three conditions
LL - in low light environment (grey bars)
HL- in high light environment (white bars)
LL->HL in low light environment and then transferred to a high light environment for one week prior to measurements (dark stripes bars)
The following measurements were performed on individuals of the two species growing in the three different treatments: vein density, starch content in leaves, and photosynthetic capacity. Statistical tests were performed to test for significant differences in trait values across the different treatments in the two species. Different lower caps letters denote significant differences (a would be different from b and different from c). n.s. means differences across treatments were statistically non-significant. Note: these plants cannot increase the number of plasmodesmata in the phloem with change in the environment.
Step by step
Solved in 3 steps with 1 images
