Plants grown under normal environmental conditions have low levels of free proline, but under adversity (e.g., drought, cold, salt, etc.) the free proline conte
Mature pollen falling on the stigma will germinate and grow pollen tubes, and pollen germination can also occur when appropriate conditions (temperature, pH, os
The natural regulation of abscission is effected by the inhibitory action of growth hormone supplied from the leaf (or fruit) and the promotional action of ethy
Ethylene alters membrane permeability and cell compartmentalization, and induces the synthesis, release or activation of many enzymes (especially degradative en
Ethylene is one of the five major endogenous hormones and the only gaseous hormone. Almost all plant tissues have the potential to produce ethylene. Ethylene ha
Ethylene is a gaseous hormone that has multiple effects on plant metabolism, growth and development. Treatment of yellowing pea seedlings with ethylene gas inhi
Cytokinins have the effect of promoting cotyledon enlargement in radish. Over a range of concentrations (0.05 to 50 pp M for 6-BA agonist), cotyledon weight gai
The protoplasmic membrane of living cells has the ability to selectively absorb substances, while the protoplasmic membrane of dead cells loses this ability, so
Plants must absorb certain essential mineral elements for their normal growth and development. If an essential element is missing, it will show specific deficie
Where viable seeds can constantly respire, absorbing O2 from the air while releasing CO2, CO2 dissolves in water to form H2CO3, which is unstable and dissociate
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