pollen germination observations
Arushi Grover , Sheldon Fernandes, Jervis Fernandes, Lisha Almeida
Silvia Fernandes, Krisann Garrard.
The effect of Lead Toxicity on Pollen germination.
Received: 15th February 2012
Abstract:
Pollen obtained from the Hibiscus rosa-sinensis, commonly known as the Hibiscus flower were exposed to different concentrations of Lead to understand the effect of heavy metal on pollen tube germination. Heavy metals such as Lead, have shown to decrease the pollen germination and inhibit pollen tube growth. There was a correlation observed between the concentration of lead the pollen was exposed to and the extent of growth inhibition observed. The effect of 20 ppm, 40ppm, 60ppm and 80 ppm lead on pollen tube germination were studied using light microscopy. A progressive decrease in the percentage of pollen germination indicated that higher levels of toxicity caused higher growth inhibitions.
Introduction:
Heavy metals are natural components of the Earth's crust. They cannot be degraded or destroyed. To a small extent they enter our bodies via food, drinking water and air. As trace elements, some heavy metals are essential to maintain the metabolism of the human body. However, at higher concentrations they can lead to poisoning for human, animal, plant and microorganisms. Over the last decades, environmental contamination with heavy metals has increased drastically (Yasar Kiran, Ahmet Sahin 2005)
Heavy metals have recently received the attention of researchers all over the world, mainly due to their harmful effects on plant. The toxic effects of metals have also been intensively studied at the level of biochemical- physiological process such as photosynthesis, transpiration, enzyme activity or metal accumulation in tissue.
Pollen germination and tube growth are used to detect biological activity of various environmental pollutants such as pesticides, heavy metals, acid rain etc.
In this experiment we report the effect of different concentrations of
Silvia Fernandes, Krisann Garrard.
The effect of Lead Toxicity on Pollen germination.
Received: 15th February 2012
Abstract:
Pollen obtained from the Hibiscus rosa-sinensis, commonly known as the Hibiscus flower were exposed to different concentrations of Lead to understand the effect of heavy metal on pollen tube germination. Heavy metals such as Lead, have shown to decrease the pollen germination and inhibit pollen tube growth. There was a correlation observed between the concentration of lead the pollen was exposed to and the extent of growth inhibition observed. The effect of 20 ppm, 40ppm, 60ppm and 80 ppm lead on pollen tube germination were studied using light microscopy. A progressive decrease in the percentage of pollen germination indicated that higher levels of toxicity caused higher growth inhibitions.
Introduction:
Heavy metals are natural components of the Earth's crust. They cannot be degraded or destroyed. To a small extent they enter our bodies via food, drinking water and air. As trace elements, some heavy metals are essential to maintain the metabolism of the human body. However, at higher concentrations they can lead to poisoning for human, animal, plant and microorganisms. Over the last decades, environmental contamination with heavy metals has increased drastically (Yasar Kiran, Ahmet Sahin 2005)
Heavy metals have recently received the attention of researchers all over the world, mainly due to their harmful effects on plant. The toxic effects of metals have also been intensively studied at the level of biochemical- physiological process such as photosynthesis, transpiration, enzyme activity or metal accumulation in tissue.
Pollen germination and tube growth are used to detect biological activity of various environmental pollutants such as pesticides, heavy metals, acid rain etc.
In this experiment we report the effect of different concentrations of