Allelopathic Effects of Aqueous Extracts
of Alternanthera philoxeroides on the Growth
of Zoysia matrella

Huang, Yongjie; YanYan, Ge; Wang, Qingling; Zhou, Hui; Liu, Wuxing; Christie, Peter

doi:10.15244/pjoes/65039

Cited by 15 publications

(9 citation statements)

References 30 publications

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“…Additionally, we also discovered that low concentrations of both A. corniculatum LLLs and PCTs promoted the germination and growth of K. obovata, e.g., initiation time of stems, number of roots, and length of roots. This interesting trend was consistent with a previous discovery that low concentrations (less than 10 g L −1 ) of Alternanthera philoxeroides extract could facilitate the growth of Zoysia matrella [36]. We speculated that these observations might be because a small number of CTs acted as "antigens" to activate the defense mechanisms and then triggered the production of various enzymes to adapt to adverse situations.…”

Section: Allelopathic Response Indices Of a Corniculatum's Physiological Performance Under Lll And Pct Treatments From K Obovatasupporting

confidence: 91%

Microcosm Study on Allelopathic Effects of Leaf Litter Leachates and Purified Condensed Tannins from Kandelia obovata on Germination and Growth of Aegiceras corniculatum

Lang

Wei

Chen

et al. 2021

Forests

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Kandelia obovata (Ko) and Aegiceras corniculatum (Ac) are common and dominant plant species in mangrove wetlands in South China, which are distributed in similar tidal zones along the coastline. The present study aimed to determine the allelopathic effects of leaf litter leachates (LLLs) from Ko and their purified condensed tannins (PCTs) on the germination and growth of Ac by mangrove microcosms. Replicate pots containing five different levels of LLLs and PCTs were separately prepared and propagules of Ac were placed in each treatment. Both LLLs and PCTs significantly inhibited the germination and growth of Ac, especially at high concentrations. The final germination rates of the roots and stems and the numbers of fine roots declined continuously, while other growth indicators, including the lengths of fine roots and nutritive roots and the biomasses of roots, stems, and leaves first increased and then decreased with increasing levels. These results indicate that LLLs from the leaf litter of Ko, in particular their PCTs, exerted an inhibition effect on propagule germination and seedling growth of Ac, and the inhibitory effects were concentration dependent. This study suggested that condensed tannins from leaf litter, acting as allelochemicals, could regulate the natural regeneration of a mangrove forest.

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Section: Allelopathic Response Indices Of a Corniculatum's Physiological Performance Under Lll And Pct Treatments From K Obovatasupporting

confidence: 91%

Microcosm Study on Allelopathic Effects of Leaf Litter Leachates and Purified Condensed Tannins from Kandelia obovata on Germination and Growth of Aegiceras corniculatum

Lang

Wei

Chen

et al. 2021

Forests

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“…Additionally, we also discovered that low concentrations of both A. corniculatum LLLs and PCTs promoted the germination and growth of K. obovata, e.g., initiation time of stems, number of roots, and length of roots (Figures 2-3, Table 1). This interesting trend was consistent with a previous discovery that low concentrations (less than 10 g L -1 ) of Alternanthera philoxeroides extracts could facilitate the growth of Zoysia matrella [37]. We speculated that these observations might be because a small amount of CTs acted as "antigens" to activate the defense mechanisms, and then triggerred the production of various enzymes to adapt adverse situation.…”

Section: Condensed Tannins Extracted From Leaf Litter Primarily Contribute To Allelopathy In Mangrove Forestssupporting

confidence: 91%

Microcosm Study on Allelopathic Effects of Leaf Litter Leachates and Purified Condensed Tannins from Kandelia obovata on Germination and Growth of Aegiceras corniculatum

Lang¹,

Wei²,

Chen³

et al. 2021

Preprint

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Kandelia obovata (Ko) and Aegiceras corniculatum (Ac) are common and dominant plant species in mangrove wetlands in South China, and distribute in the similar tidal zones along the coastline. The present study aimed to determine the allelopathic effects of leaf litter leachates (LLLs) from Ko and their purified condensed tannins (PCTs) on the germination and growth of Ac by mangrove microcosms. Replicate pots containing five different levels of LLLs and PCTs were separately prepared and propagules of Ac were placed in each treatment. Both LLLs and PCTs significantly inhibited the germination and growth of Ac, especially in high levels. The final germination rates of roots, stems, and the number of fine roots declined continuously while other growth indicators, including the lengths of fine roots, nutritive roots, the biomasses of roots, stems, leaves, increased firstly and then decreased with increasing levels. These results indicated that LLLs from the leaf litter of Ko, in particular, their PCTs exerted an inhibition effect on propagule germination and seedling growth of Ac, and the inhibitory effects were concentration dependent. This study suggested that condensed tannins from leaf litter, acting as allelochemicals, could regulate the natural regeneration of a mangrove forest.

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“…Different extracts of Cassia tora organs inhibited seed germination and seedling growth of mustard (Sarkar et al,) of mustard (Sarkar et al, 2012). The strength of the allelopathic effects of roots', leaves' and stems' extracts of A. philoxeroides on Z. matrella diminished subsequently (Huang et al, 2017) but no information was found about the allelopathic effects of L. spectabilis and A. cordifolia. The number of chromosomes in meiosis revealed that the number of chromosomes of A. cordifolia is n=6 (2n=12) and n=9 (2n=18) for L. spectabilis (syn: mesembryanthemum spetabila).…”

Section: Discussionmentioning

confidence: 99%

“…Allelopathy effects of L. spectabilis and A. cordifolia were associated with small inhibitory effects on seed germination and seedlings growth of mungbaen. Allelopathic effects of both plant extracts, in particular A. cordifolia, were significant on barley seed germination and growth of seedlings.The extracts of Triantheum portulacastrum (Aizoaceae) reduced seed germination and seedling growth of Sesamum indicum (Huang et al, 2017). Different extracts of Cassia tora organs inhibited seed germination and seedling growth of mustard (Sarkar et al,) of mustard (Sarkar et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Total Phenol, Antioxidant and Allelopathy Assay, and Meiosis Study of Lampranthus spectabilis and Aptenia cordifolia

Hashemloian

Azimi

Rezakanlou

2019

Not Bot Horti Agrobo

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Lamperanthus spectabilis and Aptenia cordifolia (Aiozaceae) are two ornamental plants. A little information is available about their active compounds and meiosis’ process. In this study, the phenolic content, antioxidant activity, allelopathy effects and meiosis’ process of pollen mother cells of L. spectabilis and A. cordifolia were studied. The alcohol extract was used for phenol, antioxidant and allelopathy assay along with young buds for meiosis study. The stamens and petals of both plants possessed the highest phenol and antioxidant effects. All extracts of L. spectabilis and A. cordifolia had small inhibitory effects on mungbeen seed germination and seedlings growth. The allelopathy effect of both plants on barley seed germination and seedlings growth was significant especially for A. cordifolia. The count of chromosomes in meiosis revealed that the chromosome number of A. cordifolia was 2n=12 and 2n=18 for L. spetabilis. The meiosis in both plants was normal and the chromosomes were very small. Our results revealed that the extracts of all organs of both plants; specially stamens and petals, have a lot antioxidant activity. They had not allelopathic effects on seed germination’ and seedlings growth’ mungbeen and barley. Chromosome number of two plants was different but meiosis process and chromosomes size was similar. ********* In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 4, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue. *********

show abstract

Allelopathic Effects of Aqueous Extracts of Alternanthera philoxeroides on the Growth of Zoysia matrella

Cited by 15 publications

References 30 publications

Microcosm Study on Allelopathic Effects of Leaf Litter Leachates and Purified Condensed Tannins from Kandelia obovata on Germination and Growth of Aegiceras corniculatum

Microcosm Study on Allelopathic Effects of Leaf Litter Leachates and Purified Condensed Tannins from Kandelia obovata on Germination and Growth of Aegiceras corniculatum

Microcosm Study on Allelopathic Effects of Leaf Litter Leachates and Purified Condensed Tannins from Kandelia obovata on Germination and Growth of Aegiceras corniculatum

Total Phenol, Antioxidant and Allelopathy Assay, and Meiosis Study of Lampranthus spectabilis and Aptenia cordifolia

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