Effects of 5-Aminolevulinic Acid (5-ALA) on Physicochemical Characteristics and Growth of Pomegranate (Punica granatum L.)

Liu, Sushuang; Liu, Yanmin; He, Hongwen; Lin, Zhidan; Sun, Jiande; Zhang, Feixue; Zhou, Lili; Wang, Zebo; Zhang, Zaibao; Zou, Huasong

doi:10.3390/horticulturae9080860

Cited by 2 publications

(2 citation statements)

References 53 publications

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“…After a series of experiments in five provinces with different ecological environments, ALA has been officially authorized as a new plant growth regulator for apple coloration [251]. Then, similar effects of ALA were reported in peaches [252], pears [253,254], grapes [255][256][257][258], litchi [259,260], pomegranates [261], and mangoes [262]. In addition to fruit coloration, soaking wheat seeds with 50 mg L −1 ALA not only improves frost tolerance but also increases anthocyanin accumulation in coleoptiles [263].…”

Section: Promoting Fruit Coloration and Flavonoid Biosynthesismentioning

confidence: 91%

Regulation of 5-Aminolevunilic Acid and Its Application in Agroforestry

Wang,

Zhang,

Zhong

et al. 2023

Forests

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The review briefly introduces the natural occurrence, physicochemical properties, and biosynthesis of 5-aminolevuinic acid (ALA) and highlights a variety of applications in the planting industry and its possible mechanisms. It has been known that ALA can be used as biological pesticides, fungicides, and herbicides when the concentrations are higher than 838 mg L−1 (about 5 mmol L−1). When ALA concentrations are 100–300 mg L−1, it can be used to thin surplus flowers in the spring of orchards and promote fruit coloration before maturation. When the concentrations are lower than 100 mg L−1, especially not higher than 10 mg L−1, ALA can be used as a new plant growth regulator to promote seed germination, plant (including root and shoot) growth, enhance stress tolerance, increase crop yield, and improve product quality. In photosynthesis, ALA is involved in the regulation of the whole process. In stress tolerance, ALA induces plant preventive and protective systems through the NO/H2O2 signaling network. In secondary metabolism, ALA regulates many gene expressions encoding transcription factors or function proteins to promote anthocyanin and flavonol biosynthesis and accumulation. In general, ALA promotes plant health and robustness, reduces the use of chemical fertilizers and pesticides—which is conducive to improving the ecological environment, human production, and living conditions—and has a broad application prospect in agroforestry production. As a new plant growth regulator with multiple and powerful functions, the underlying regulatory mechanisms need more study.

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Section: Promoting Fruit Coloration and Flavonoid Biosynthesismentioning

confidence: 91%

Regulation of 5-Aminolevunilic Acid and Its Application in Agroforestry

Wang,

Zhang,

Zhong

et al. 2023

Forests

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“…5-aminolevulinic acid (5-ALA) is the key precursor in the biosynthesis of all porphyrin compounds [8]. It promotes chlorophyll synthesis and facilitates photosynthesis [9]. It has been shown that foliar spraying of 5-ALA inhibits the harmful effects of different types of crop stress [10,11].…”

Section: Introductionmentioning

confidence: 99%

5-ALA, DTA-6, and Nitrogen Mitigate NaCl Stress by Promoting Photosynthesis and Carbon Metabolism in Rice Seedlings

Wang,

Tan,

et al. 2024

Metabolites

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A large number of dead seedlings can occur in saline soils, which seriously affects the large-scale cultivation of rice. This study investigated the effects of plant growth regulators (PGRs) and nitrogen application on seedling growth and salt tolerance (Oryza sativa L.), which is of great significance for agricultural production practices. A conventional rice variety, “Huang Huazhan”, was selected for this study. Non-salt stress treatments included 0% NaCl (CK treatment), CK + 0.05 g N/pot (N treatment), CK + 40 mg·L−1 5-aminolevulinic acid (5-ALA) (A treatment), and CK + 30 mg·L−1 diethylaminoethyl acetate (DTA-6) (D treatment). Salt stress treatments included 0.3% NaCl (S treatment), N + 0.3% NaCl (NS treatment), A + 0.3% NaCl (AS treatment), and D + 0.3% NaCl (DS treatment). When 3 leaves and 1 heart emerged from the soil, plants were sprayed with DTA-6 and 5-ALA, followed by the application of 0.3% NaCl (w/w) to the soil after 24 h. Seedling morphology and photosynthetic indices, as well as carbohydrate metabolism and key enzyme activities, were determined for each treatment. Our results showed that N, A, and D treatments promoted seedling growth, photosynthesis, carbohydrate levels, and the activities of key enzymes involved in carbon metabolism when compared to the CK treatment. The A treatment had the most significant effect, with increases in aboveground dry weight and net photosynthetic rates (Pn) ranging from 17.74% to 41.02% and 3.61% to 32.60%, respectively. Stomatal limiting values (Ls) significantly decreased from 19.17% to 43.02%. Salt stress significantly inhibited seedling growth. NS, AS, and DS treatments alleviated the morphological and physiological damage of salt stress on seedlings when compared to the S treatment. The AS treatment was the most effective in improving seedling morphology, promoting photosynthesis, increasing carbohydrate levels, and key enzyme activities. After AS treatment, increases in aboveground dry weight, net photosynthetic rate, soluble sugar content, total sucrose synthase, and amylase activities were 17.50% to 50.79%, 11.39% to 98.10%, 20.20% to 80.85%, 21.21% to 33.53%, and 22.17% to 34.19%, respectively, when compared to the S treatment. In summary, foliar sprays of 5-ALA, DTA-6, and additional nitrogen fertilizer enhanced rice seedling growth, increased photosynthesis, lowered Ls values, and improved seedling salt tolerance. Spraying two regulators, 5-ALA and DTA-6, quantitatively increased the effect of nitrogen fertilizer, with comparable effects on NaCl stress regulation. This study provides the basis for efficient agricultural production.

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Effects of 5-Aminolevulinic Acid (5-ALA) on Physicochemical Characteristics and Growth of Pomegranate (Punica granatum L.)

Cited by 2 publications

References 53 publications

Regulation of 5-Aminolevunilic Acid and Its Application in Agroforestry

Regulation of 5-Aminolevunilic Acid and Its Application in Agroforestry

5-ALA, DTA-6, and Nitrogen Mitigate NaCl Stress by Promoting Photosynthesis and Carbon Metabolism in Rice Seedlings

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