Role of 5-aminolevulinic acid (ALA) on active oxygen-scavenging system in NaCl-treated spinach (Spinacia oleracea)

Promotive effects of 5-Aminolevulinic acid on growth, photosynthetic gas exchange, chlorophyll, and antioxidative enzymes under salinity stress in Prunnus persica (L.) Batseh Seedling

“…As a result, plants are protected against damage by reactive oxygen under salinity stress (Lee and Lee, 2000). Nishihara et al (2003) found that exogenous ALA treatment in spinach can reduce superoxide radical accumulation, enhance antioxidase activity in plants. In this experiment, the antioxidase activity in the leaves of peach seedlings is increased at 100mM…”

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

“…However, the mechanism of SOD activity induced by ALA has no been known. That ALA induced the increase of enzymes eliminating H 2 O 2 , such as APX, CAT and POD, has been suggested (Nishihara et al, 2003;Liu et al, 2006). Since ALA is the essential biosynthetic precursor of tetrapyrrole compounds including heme, and the latter is a necessary component for the activity of all three enzymes (Tsiftsoglou et al, 2006), it is reasonable to deduce that ALA induces heme accumulation, which is beneficial for H 2 O 2 eliminating enzyme activity.…”

“…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).…”