New Physiological Effects of 5-Aminolevulinic Acid in Plants: The Increase of Photosynthesis, Chlorophyll Content, and Plant Growth

Application of 5-aminolevulinic Acid for the in vitro Micropropagation of Cymbidium as a Potential Novel Plant Regulator

“…and the rate of photosynthesis, including spirulina Spirulina platensis), date palm (Phoenix dactylifera), and Arabidopsis (Arabidopsis thaliana) (Sasaki et al, 1995;AlKhateeb et al, 2006;Awad, 2008;Maruyama-Nakashita et al, 2010), rice and horseradish (Armoracia rusticana) (Hotta et al, 1997b), and garlic, barley, rice and potato (Tanaka et al, 1992). ALA is known to play a vital role in improving plant growth and the present study confirmed that ALA functions as a plant growth regulator in Cymbidium spp.…”

“…In agriculture, in addition to growth-promoting effects, ALA can be used as an herbicide and pesticide (Duke and Rebeiz, 1994;Zhang et al, 2006). ALA is known to regulate several key physiological processes associated with plant growth under saline regimes (Hotta et al, 1997a;1997b), including seed germination, reduced Na uptake, altered light reactions, improved scavenging of reactive oxygen species (ROS), enhanced photosynthetic assimilation, and maintenance of nutrient status (Hotta et al, 1997a;1997b;Youssef and Awad, 2008). Lower concentrations of ALA were effective in maintaining adequate stability of reactive oxygen synthesis in some plants, such as komatsuna (Yoshida et al, 2003).…”

Effect of 5-Aminolevulinic Acid (ALA) on Leaf Diurnal Photosynthetic Characteristics and Antioxidant Activity in Pear (Pyrus Pyrifolia Nakai)

“…Previous reports have demonstrated that ALA treatment can improve the net photosynthetic rate in spinach (Nishihara et al, 2003), melon (Wang et al, 2004), pakchoi (Wang et al, 2004b), radish (Hotta et al, 1997b;Wang et al, 2005b), strawberry (Liu et al, 2006) and watermelon (Sun et al, 2009a), under normal or stress conditions. The result of this work confirmed that exogenous ALA at a concentration of 0.5 mg/L could increase the net photosynthetic rate of pear leaves ( Fig.…”

Biological Regulation of Growth Regulator on Jujube Fruit Development

“…It is found in research that 5-ALA of suitable concentration can promote advance shading and maturity of peach fruits (Guo et al, 2013). The 5-ALA is not only a kind of plant growth promoter (Hotta et al, 1997) and is a kind of plants to strengthening agent (Watanabe et al, 2000;Nishihara et al, 2003). The CPPU treatment may increase the fruit spike length, spike weight and single fruit weight, mean, while, it can promote the fruit setting ratio increased and promote fruit enlargement (Han and Lee, 2004;Costa et al, 2004;El-Sabagh and Ahmed, 2004).…”