In the Isoelectric Focusing pH gradient is formed by the introduction into the gel of compounds known as ampholytes, which are complex mixtures of synthetic polyamino-polycarboxylic acids Ampholytes can be purchased in different pH ranges covering a wide band (e.g. pH 3–10).

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#Id: 9231

#Unit 6. System Physiology – Plant

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#Unit 6. System Physiology – Plant

In photosynthesis, the relationship of O2 evolved to CO2 taken up is 1:1. 

In photorespiration, 3 O2 are taken up for every CO2 evolved.

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#Unit 6. System Physiology – Plant

Photorespiration stimulates nitrate assimilation in C3 plant roots, probably by increasing NADH availability in the cytosol.

Photorespiration is positively correlated with growth under nitrogen limitation

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#Id: 9234

#Unit 6. System Physiology – Plant

Photorespiration enhances C3 plant tolerance to drought, salinity and chilling.

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#Id: 9235

#Unit 6. System Physiology – Plant

The C4 pathway, involving mesophyll cells and bundle-sheath cells, predominates in plants of tropical origin. 

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#Unit 6. System Physiology – Plant