Autotoxicity in the cultivated medicinal herb Andrographis paniculata

Hu, Lin; Xue, R. R.; Xu, C C.; Zhang, Z.Y.; Zhang, G.; Zeng, R. S.; Song, Yeong-Hun

doi:10.26651/allelo.j./2018-45-2-1182

Cited by 3 publications

(4 citation statements)

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“…Zeng et al found that A. paniculata released some alleochemicals into the soil during the growth period, and andrographolide was one of the main compounds (Zeng et al 2011). Furthermore, Hu et al confirmed this finding, as not only andrographolide but also two phenolic compounds (ferulic acid, caffeic acid) were abundant in 2-years old monoculture soil while were absent in uncultivated soil (Hu et al 2018). Lowered andrographolide, dehydroandrographolide, and flavonoids contents were found in plants grown on soil continuously cropped with A. paniculata (Li et al 2019b).…”

Section: Discussionmentioning

confidence: 79%

“…A. paniculata is rich in terpenoids, flavonoids, and phenolics, which were identified as powerful allelochemicals and have been widely accepted as mediators that act between inter-and intraspecific root (Singh et al 2003;Bertin et al 2003;Bais et al 2004;Weston et al 2012). Aqueous extracts from soil continuously cropped A. paniculata could significantly inhibit its seed germination and seedlings' root growth (Zeng et al 2011;Li et al 2016a;Hu et al 2018). Zeng et al found that A. paniculata released some alleochemicals into the soil during the growth period, and andrographolide was one of the main compounds (Zeng et al 2011).…”

Section: Discussionmentioning

confidence: 99%

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Variations of rhizospheric soil microbial communities in response to continuous Andrographis paniculata cropping practices

Chen

et al. 2020

Bot Stud

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Background: Changes of soil microbial communities are one of the main factors of continuous cropping problem. Andrographis paniculata has been reported to have replant problem in cultivation. However, little is known about the variations of rhizosphere soil microbial communities of A. paniculata under a continuous cropping system. Here, Illumina MiSeq was used to investigate the shifts of rhizospheric bacterial and fungal communities after continuous cropping of A. paniculata. Results: The bacterial diversity increased whereas the fungal diversity decreased in rhizosphere soil after consecutive A. paniculata monoculture; and the soil microbial community structure differed between newly plant soil and continuous cropped soil. Taxonomic analyses further revealed that the bacterial phyla Proteobacteria, Acidobacteria and Bacteroidetes and the fungal phyla Zygomycota, Ascomycota and Cercozoa were the dominant phyla across all soil samples. The relative abundance of phyla Acidobacteria and Zygomycota were significantly increased after continuous cropping. Additionally, the most abundant bacterial genus Pseudolabrys significantly decreased, while the predominant fungal genus Mortierella increased considerably in abundance after continuous cropping. Conclusions: Our results revealed the changes on diversity and composition of bacterial and fungal communities in rhizospheric soil under continuous cropping of A. paniculata. These data contributed to the understanding of soil micro-ecological environments in the rhizosphere of A. paniculata.

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Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Variations of rhizospheric soil microbial communities in response to continuous Andrographis paniculata cropping practices

Chen

et al. 2020

Bot Stud

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“…This leaf has been widely reported to be an effective natural biocontrol (Prakoso et al, 2018). Flavonoids, saponin, alkaloids, and tannin are found in A. paniculata (Dwivedi et al, 2021;Hu et al, 2018;Utami, 2016;Ratnani et al, 2012). Sambiloto extract contains flavonoids, saponins, alkaloids, and tannins that can be applied as bioherbicides.…”

Section: Madusari Et Al (2023)mentioning

confidence: 99%

Study of Sambiloto Andrographis paniculate Ness. Extract as an Eco-Friendly Biocontrol on Weed Seed Germination and Growth

Madusari,

Marzuki,

Yuliyanto

2023

J. appl. agricultural sci. technol.

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The use of synthetic herbicides causes many problems, including pollution, a decrease in soil organic content, and weed resistance to specific herbicides. Plants provide a source of novel phytotoxic compounds that can be evaluated in the search for efficient and ecologically safe herbicides. This research aimed to examine the allelochemical bioherbicidal activity of sambiloto (Andrographis paniculate Ness) leaf extract (SLE) to suppress weed seed germination and growth. The experiment was designed to investigate the effect of the SLE as a potent weed seed germination inhibitor and retard weed growth. In this experiment, a non-factorial randomized block design was used, with treatments SLE0 (0% Extract), SLE1 (Extract 0.1%), SLE2 (Extract 0.5%), SLE3 (Extract 1.0%), and SLE4 (Extract 1.5%). The result showed that weed height and biomass were significantly reduced after the extract was applied. The plant-based extracts contained 0.1114% flavonoids and 0.1628% tannins. The findings suggest that this sambiloto herbaceous extract has a promising future in modern plant protection as bioherbicide to suppress germination and weed growth. Therefore, the application of these bio-products could be beneficial for sustainable agricultural practices.

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“…In addition, studies by Alías et al [23] on the soil properties of the invasive rock-rose (Cistus ladanifer) population also showed that the compounds released by the plant itself were involved in autotoxicity and regeneration of the rock-rose population. Cinnamomum migao contains substances with high allelopathic potential, such as terpenoids, phenolics, and flavonoids [24]; generally, species with high allelopathic potential tend to have strong autotoxicity [25], and medicinal plants are more likely to have autotoxicity than other plants [14]. Therefore, we speculate that one of the reasons for seedling scarcity in the wild population of the species C. migao is that this species has autotoxic allelopathy [14].…”

Section: Plant Materialsmentioning

confidence: 99%

Autotoxicity Hinders the Natural Regeneration of Cinnamomum migao H. W. Li in Southwest China

Huang

Jing-zhong

Liu

et al. 2019

Forests

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Autotoxicity is a widespread phenomenon in nature and is considered to be the main factor affecting new natural recruitment of plant populations, which was proven in many natural populations. Cinnamomum migao H. W. Li is an endemic medicinal woody plant species mainly distributed in Southwestern China and is defined as an endangered species by the Red Paper of Endangered Plants in China. The lack of seedlings is considered a key reason for population degeneration; however, no studies were conducted to explain its causes. C. migao contains substances with high allelopathic potential, such as terpenoids, phenolics, and flavonoids, and has strong allelopathic effects on other species. Therefore, we speculate that one of the reasons for C. migao seedling scarcity in the wild is that it exhibits autotoxic allelopathy. In this study, which was performed from the perspective of autotoxicity, we collected leaves, pericarp, seeds, and branches of the same population; we simulated the effects of decomposition and release of litter from these different anatomical parts of C. migao in the field; and we conducted 210-day control experiments on seedling growth, with different concentration gradients, using associated aqueous extracts. The results showed that the leaf aqueous extract (leafAE) significantly inhibited growth indicators and increased damage of the lipid structure of the cell membrane of seedlings, suggesting that autotoxicity from C. migao is a factor restraining seedling growth. The results of the analyses of soil properties showed that, compared with the other treatments, leafAE treatment inhibited soil enzyme activity and also had an impact on soil fungi. Although leafAE could promote soil fertility to some extent, it did not change the effect of autotoxic substances on seedling growth. We conclude that autotoxicity is the main obstacle inhibiting seedling growth and the factor restraining the natural regeneration of C. migao.

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Autotoxicity in the cultivated medicinal herb Andrographis paniculata

Cited by 3 publications

References 0 publications

Variations of rhizospheric soil microbial communities in response to continuous Andrographis paniculata cropping practices

Variations of rhizospheric soil microbial communities in response to continuous Andrographis paniculata cropping practices

Study of Sambiloto Andrographis paniculate Ness. Extract as an Eco-Friendly Biocontrol on Weed Seed Germination and Growth

Autotoxicity Hinders the Natural Regeneration of Cinnamomum migao H. W. Li in Southwest China

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