Phytotoxic effect of invasive species<scp><i>Amorpha fruticosa</i></scp>L. on germination and the early growth of forage and agricultural crop plants

Krstin, Ljiljana; Katanić, Zorana; Pfeiffer, Tanja Žuna; Maronić, Dubravka Špoljarić; Marinčić, Dragica; Martinović, Ana; Čamagajevac, Ivna Štolfa

doi:10.1111/1440-1703.12184

Cited by 8 publications

(6 citation statements)

References 47 publications

(56 reference statements)

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“…Similar to our findings, the germination and growth of the seedlings were significantly inhibited by the aqueous extract of false indigo-bush, with the strongest negative effect observed on shoot growth. Krstin et al [56] also characterized the phytotoxic effects of aqueous leaf extracts obtained from A. fruticosa (1%, 3%, and 5% concentrations) in an in vitro study on the germination and growth of four important agricultural species (Helianthus annuus L., Medicago sativa L., Trifolium pratense L., and Triticum aestivum L.). Similar to our findings, their results showed that the phytotoxicity of false indigo-bush leaf extract depended on its concentration, with higher concentrations exhibiting stronger phytotoxic effects.…”

Section: Discussionmentioning

confidence: 99%

“…It is a difficult weed to control in floodplain afforestation, and arable land and grassland management. Due to its allelopathic substances, its rapid invasion of agricultural fields can negatively affect the growth and yield of valuable forage and agricultural crops [56]. It is also a serious problem from the perspective of flood control [57].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the Allelopathic Effect of Two Invasive Plant Species in Rhizotron System

Bakacsy,

Kardos,

Szepesi

et al. 2024

Life

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A key question in plant invasion biology is why invasive plants are more competitive in their introduced habitat than in their native habitat. Studies show that invasive species exhibit allelopathy, influencing other plants by releasing chemicals. Research on allelopathy uses in vitro tests, investigating effects on seed germination and seedling development. Although soil plays a role in modifying allelopathic effects, observations with soil are rare and almost nothing is known about the root development of test plants developing in soil and the effects of allelopathic compounds on root architecture. Our study evaluates the allelopathic effects of false indigo-bush (Amorpha fruticosa L.) and common milkweed (Asclepias syriaca L.) on oilseed rape growth as a model plant. The rhizotron system was used to study the effect of morphology and root architecture. Leaf–soil mixtures at 0.5%, 1%, and 5% concentrations were used. Shoot and root development was strongly inhibited at 5%. But there was no difference between the allelopathy of the two species, and the application of lower concentrations did not show any effect, demonstrating that soil has a significant modifying effect on their allelopathy. Our results highlight that the development of roots growing in the soil is also worth investigating in connection with allelopathy, which can strengthen the ecological importance of allelochemicals during successful invasions.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of the Allelopathic Effect of Two Invasive Plant Species in Rhizotron System

Bakacsy,

Kardos,

Szepesi

et al. 2024

Life

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“…Some studies compared the effects of the aqueous extracts to effects of known allelopathic compounds, which suggest that the effect of the aqueous extract is due to chemical inhibition (e.g. Krstin et al 2021). It has, however, also been suggested that the effect of the aqueous extracts is not always due to chemical inhibition but can be due to the high osmolality of the extracts (Inderjit and Nilsen 2003, Loydi et al 2015, Oduor et al 2020).…”

Section: Discussionmentioning

confidence: 99%

Allelopathic and Competitive Interactions Between Native and Alien Plants

Yuan

et al. 2021

Preprint

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The novel-weapons and homeland-security hypotheses are based on the idea that aliens and natives are not adapted to each other’s allelochemicals as they did not co-evolve. However, as only a few studies have tested this, it remains unclear how important co-evolutionary history is in determining the strength of allelopathic interactions between aliens and natives. Here, we tested for potential pairwise allelopathic effects on each other of five alien and five native herbaceous species in China. We did a germination and a competition experiment. In the germination experiment, we tested whether aqueous extracts of the ten study species had allelopathic effects on each other’s seed germination. In the competition experiment, we tested whether the alien and native species differed in their competitive effects and responses, and whether these were changed by the presence of activated carbon –a presumed allelopathy neutralizer– in the soil. Plant extracts had negative allelopathic effects on seed germination. This was particularly the case for extracts from the native species. Moreover, aqueous extracts had slightly stronger negative effects on germination of the aliens than on germination of the natives. In the competition experiment, on the other hand, the natives suffered more from competition than the alien species did, but we could not relate this to allelopathy. Alien plants had negative competitive and allelopatic effects on native plants, and the reverse was also true. These alien-native interactions, however, were not consistently stronger or weaker than native-native interactions or alien-alien interactions.

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“…In particular, the new weapon hypothesis verifies that numerous invasive plant species can incur evident allelopathic intensity by secreting several types of secondary substances and noxious compounds, i.e., allelochemicals, that can decrease the growth of native plants (Djurdjević et al 2012, Fabbro et al 2014, Lyytinen & Lindström 2019, Hsueh et al 2020. More importantly, the process of seed germination and seedling growth (SGe and SGr) was most obviously affected by the allelochemicals of invasive plant species at the beginning of their life history (Fabbro et al 2014, Wang et al 2017a, b, 2018c, d, 2019d, 2020c, Carvalhoa et al 2019, Hsueh et al 2020, Krstin et al 2021). However, SGe and SGr are critical to individual growth and the development of biomes.…”

Section: Introductionmentioning

confidence: 99%

Silver nanoparticles intensify the allelopathic intensity of four invasive plant species in the Asteraceae

Yu¹,

Cheng²,

Wei³

et al. 2022

An. Acad. Bras. Ciênc.

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This study aimed to estimate the allelopathic intensity of four Asteraceae invasive plant species (IPS), including Conyza canadensis (L.) Cronq., Erigeron annuus (L.) Pers., Bidens pilosa (L.), and Aster subulatus Michx., by testing the effect of leaf extracts on the seed germination and seedling growth (SGe and SGr) of lettuce (Lactuca sativa L.) in combination with two particle sizes of silver nanoparticles. These four IPS decreased the germination of lettuce seeds but increased the growth of lettuce seedlings. The allelopathic intensity of the four IPS decreased in the following order: B. pilosa > C. canadensis > E. annuus > A. subulatus. Silver nanoparticles decreased the SGe and SGr of lettuce. The 20 nm silver nanoparticles affected the competition intensity for water and the absorption of inorganic salts by lettuce more intensively than the 80 nm nanoparticles. Silver nanoparticles intensify the allelopathic intensity of the four invasive plant species on the SGe and SGr of lettuce. The allelopathic intensity of B.pilosa was higher than that of the other three IPS when they were polluted with silver nanoparticles. Thus, silver nanoparticles could facilitate the invasion process of the four IPS, particularly B. pilosa, via an increase in the intensity of allelopathy.

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Phytotoxic effect of invasive speciesAmorpha fruticosaL. on germination and the early growth of forage and agricultural crop plants

Cited by 8 publications

References 47 publications

Investigation of the Allelopathic Effect of Two Invasive Plant Species in Rhizotron System

Investigation of the Allelopathic Effect of Two Invasive Plant Species in Rhizotron System

Allelopathic and Competitive Interactions Between Native and Alien Plants

Silver nanoparticles intensify the allelopathic intensity of four invasive plant species in the Asteraceae

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