Biology and Impacts of Pacific Islands Invasive Species. 13.<i>Mikania micrantha</i>Kunth (Asteraceae)

Day, Michael; Clements, David R.; Gile, Christine; Senaratne, Wilmot K. A. D.; Shen, S. C.; Weston, Leslie A.; Zhang, Fudou

doi:10.2984/70.3.1

Cited by 65 publications

(69 citation statements)

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“…Mikania micrantha Kunth (Asteraceae; mile‐a‐minute), a native species to Central and South America, is now present in many countries throughout South‐East Asia and the Pacific, where it severely impacts on natural ecosystems and agriculture (Day et al ., ). Various studies have shown that M. micrantha has most, if not all, of the principal attributes of an invasive species.…”

Section: Introductionmentioning

confidence: 97%

“…Germination of M. micrantha seed is influenced by a number of factors, such as soil temperature, texture, salinity, pH and moisture levels, the quality and/or the quantity of light (photoperiod) available and the depth to which the seed is buried (see review by Day et al ., ). In field studies, the density of M. micrantha seed was greatest in the top layer of the soil and the seedling emergence rate decreased as the depth of seed burial increased (Zhang et al ., ).…”

Section: Introductionmentioning

confidence: 97%

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Seed biology of Mikania micrantha in Viti Levu, Fiji

2018

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Summary Mikania micrantha (mile‐a‐minute) reproduces both by seed and vegetatively. A study to determine the possible pollinators, seed production rates, temperature and salinity limitations to germination and its seedbank size and persistence was conducted in Viti Levu, Fiji. Representatives of the Diptera had the greatest percentage of all floral visits (38%), followed by Hymenoptera (34%) and Lepidoptera (27%), while the honeybee was the most recurring visitor (18% of all visits). Flower heads (capitula) within the inflorescence commonly formed four viable seeds, resulting in 60 820 filled seed being produced per m2. However, the seedbanks formed were not massive (600 seed m−2) and they were moderately persistent (T50: 1–3 years). Seed germination from both high and moderate rainfall regions occurred rapidly, under a wide range of temperature regimes, with no primary dormancy being observed. This study indicates that the seed reproductive success of M. micrantha in the two rainfall regions of Fiji is due to a number of factors, including the production of large numbers of flowers, successful pollination by local insects and the subsequent production of a large number of viable seeds. These seeds have high viability, no dormancy and are capable of forming small‐to‐medium seedbanks that are moderately long‐lived. In addition, seeds can germinate under a wide range of temperature and salinity conditions. This knowledge on seed production, biology, longevity and salt tolerance is vital in the development of management plans of M. micrantha in Fiji.

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Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 97%

Seed biology of Mikania micrantha in Viti Levu, Fiji

2018

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“…Mikania micrantha Kunth (Asteraceae or Compositae) is a perennial creeping vine and widely distributed in South and North America and can also be found in Africa, Pacific Islands and Southeast Asia, including Southern China and Malaysia (Tripathi et al, 2012;Day et al, 2016;Ishak et al, 2016). This plant is known as American rope, Chinese creeper, mile-a-minute, 'Chhagalbati' or 'Japanilata' (West Bengal), 'Selaput tunggul' (Malaysia) and 'Sembung rambat' (Indonesia) (Haisya et al, 2013;Nornasuha and Ismail, 2013;Saha et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…In agriculture, M. micrantha is a weed plant that can reduces the growth and productivity of several crops such as rubber, oil palm, and cocoa plantation in Malaysia which cost 8-10 million dollars per annum to control its growth (Sankaran, 2008). This is due to its fast-growing habit and production of allelopathic substances (Sankaran, 2008;Nornasuha and Ismail, 2013;Day et al, 2016). However, this plant is used traditionally to treat insect bites and stop minor external bleeding or consumed as a juice as an alternative to reduce glucose, cholesterol, and high blood pressure (Facey et al, 2010;Ishak et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

From Weed to Medicinal Plant: Antioxidant Capacities and Phytochemicals of Various Extracts of Mikania micrantha

Ishak¹

2018

IJAB

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Mikania micrantha is commonly consumed as traditional medicine in some countries, including Malaysia. Little is known about the antioxidant properties and phytochemicals of M. micrantha. This study was aimed to investigate the total phenolic content (TPC), total flavonoid content (TFC) and antioxidant capacities of the leaves and stems of M. micrantha of hot water, cold water, 70% ethanol, ethyl acetate, and hexane extracts. Folin-Ciocalteu and aluminium chloride colorimetric assays were used to determine the TPC and TFC, respectively. The antioxidant capacities were determined using rapid, inexpensive and small-scale microplate of five different antioxidant assays. Gas chromatography-mass spectrometry (GC-MS) was used to chemically profile and characterize the phytochemicals. In comparison with different solvents, the ethyl acetate stems (EAS) and leaves (EAL) extracts of M. micrantha had the significantly greatest TPC (141 ± 0.51 mg gallic acid equivalent/g) and TFC (70.1 ± 0.92 catechin equivalent/g), respectively. Moreover, EAS extract had the significantly greatest antioxidant capacities using DPPH (EC50 = 324 ± 61.4 μg/mL), ABTS (0.53 ± 0.01 mmol trolox equivalent/g), FRAP (1.28 ± 0.05 mmol Fe 2+ /g), phosphomolybdenum antioxidative power (219 ± 7.03 mg ascorbic acid equivalent/g), and β-carotene bleaching (108 ± 2.23%) assays. GC-MS analysis of EAS showed the presence of sesquiterpenes (30.46%), phenol (16.38%), and alkane hydrocarbons (10.45%), which may contribute to its antioxidant capacities. These findings suggest the stems extract of M. micrantha using ethyl acetate as the potential source of natural antioxidant agents and its utilization to prevent oxidative damage-related diseases could be further explored.

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“…(belonging to the family Asteraceae) is a fast-growing perennial herbaceous or slightly woody vine native to tropical America (Lowe, Browne, Boudjelans, & De Poorter, 2001) and has been listed as one of the top 10 most invasive weeds worldwide (Holm, Plucknett, Pancho, & Herberger, 1977). This species has rapidly expanded in tropical and subtropical parts of the Asia-Pacific region, which has resulted in serious damage to plantation crops and agroforestry ecosystems (Day et al, 2016). The vine stem grows rapidly and can increase by 20 cm in one night (Du, Yang, Li, & Yin, 2006); therefore, the plant has been nicknamed "mile-a-minute" weed (Waterhouse, 1994).…”

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confidence: 99%

Flooding with shallow water promotes the invasiveness of Mikania micrantha

MaoFeng

et al. 2019

Ecology and Evolution

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The invasive ability of alien plants is not only affected by their biological characteristics but also by environmental factors. Therefore, investigating the relationship between plant growth and environmental factors is helpful for predicting the invasive potential of alien species. Mikania micrantha H.B.K. (a vine of Asteraceae) is one of the top 10 most invasive weeds worldwide and causes serious damage to agroforestry ecosystems. Water is an important environmental factor that affects plant growth; however, the relationship between water conditions and the rapid growth of M. micrantha is not clear. In this study, 162 M. micrantha population sizes were investigated in dry, wet and aquatic habitats in the Pearl River Delta region of Guangdong, China. In addition, the seed germination and seedling growth characteristics of M. micrantha were determined by submerging tests. The results showed that the population size of M. micrantha was the largest in aquatic habitats, and the soil moisture content was positively correlated to the population size in dry and wet habitats. Furthermore, M. micrantha seeds could germinate underwater and grow out of the water surface at a depth of 6 cm with a survival rate of 7.4%. Aquatic habitat promoted vine elongation, whereas dry habitats resulted in the reverse pattern. After 8 weeks of water treatments, the vine stem length was 2 and 3 times longer in the aquatic habitat than the wet and dry habitats, respectively. The total root length, root volume, and root tip number increased significantly in the aquatic habitat when compared to those in the wet habitat; however, these parameters exhibited the opposite pattern in the dry habitat. The results showed that flooding with shallow water is conducive to the invasiveness of M. micrantha, suggesting that water is the key determinant during the intrusion process of M. micrantha populations. Open Research Badges This article has been awarded Open Data, Open Materials and Preregistered research design Badges. All materials and data are publicly accessible via the Open Science Framework at https://osf.io/ksz2f/?viewonly=30b6fec21f0447edbdfc9cebe2b01065, https://osf.io/a5ymf/ and https://osf.io/ksz2fl?viewonly=cfcbfOfc829c402fb22deb3be801dffc

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Biology and Impacts of Pacific Islands Invasive Species. 13.Mikania micranthaKunth (Asteraceae)

Cited by 65 publications

References 53 publications

Seed biology of Mikania micrantha in Viti Levu, Fiji

Seed biology of Mikania micrantha in Viti Levu, Fiji

From Weed to Medicinal Plant: Antioxidant Capacities and Phytochemicals of Various Extracts of Mikania micrantha

Flooding with shallow water promotes the invasiveness of Mikania micrantha

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