J Agric Food Chem 61:6383–6392Ĭruz-Ortega R, Anaya AL, Hernández-Bautista BE, Laguna-Hernández G (1998) Effects of allelochemical stress produced by Sicyos deppei on seedling root ultrastructure of Phaseolus vulgaris and Cucurbita ficifolia. Science 290:521–523Ĭhen H, Tuck T, Ji X, Zhou X, Kelly G, Cuerrier A, Zhang J (2013) Quality assessment of Japanese knotweed ( Fallopia japonica) grown on Prince Edward Island as a source of resveratrol. J Chem Ecol 30(3):671–689Ĭallaway RM, Aschehoug ET (2000) Invasive plants versus their new and old neighbors: a mechanism for exotic invasion. J Cell Biol 27:423–432īurgos NR, Talbert RE, Kim KS, Kuk YI (2004) Growth inhibition and root ultrastructure of cucumber seedlings exposed to allelochemicals from rye ( Secale cereale). Plant Signal Behav 2(4):3317–3318īonnett HT, Newcomb EB (1965) Polyribosomes and cisternal accumulations in root cells of radish. Plant Ecol 166:1–11īogatek R, Gniazdowska A (2007) ROS and phytohormones in plant-plant allelopathic interaction. Mol Plant Microbe Intaract 23(11):1403–1412īímová K, Mandák B, Pyšek P (2003) Experimental study of vegetative regeneration of four invasive Reynoutria taxa (Polygonaceae). J Cell Biol 20:235–248īenitez-Alfonso Y, Faulkner C, Ritzenthaler C, Maule AJ (2010) Plasmodesmata: gateways to local and systemic virus infection. Biol Invasions 11:1189–1203īell PR, Mühlethaler K (1964) The degeneration and reappearance of mitochondria in the egg cells of a plant. sets the stage for the Battle of the Clones. Plant Physiol Biochem 84:78–86īailey JP, Bímová K, Mandák B (2009) Asexual spread versus sexual reproduction and evolution in Japanese knotweed s.l. J Chem Ecol 19(2):175–183īabula P, Vaverkova V, Poborilova Z, Ballova L, Masarik M, Provaznik I (2014) Phytotoxic action of naphthoquinone juglone demonstrated on lettuce seedlings roots. J Chem Ecol 26(3):611–624Īliotta G, Cafiero G, Fiorentino A, Strumia S (1993) Inhibition of radish germination and root growth by coumarin and phenylpropanoids. Excessive vacuolization was seen for the cells of the root apical meristem.Ībrahim D, Braguini WL, Kelmer-Bracht AM, Ishii-Iwamoto EL (2000) Effects of four monoterpenes on germination, primary root growth, and mitochondrial respiration in maize. As well as the irregularly shaped nuclei and plasma membrane detached from the cell wall, the most prominent ultrastructural effects in the root cap cells of these aqueous rhizome extracts were the ring-shaped form of the mitochondria and large endoplasmic reticulum bodies. There were signs of cell damage and oxidative stress in the root cap cells, and to a lesser extent in the meristematic zone. The roots of radish seedlings treated with the knotweed extracts were shorter and thicker, due to the shorter and wider shapes of their cortex cells, which were organized in more columns than the control roots. After 7 days of growth without and with aqueous extracts from these rhizomes, the anatomical and ultrastructural changes in the radish seedling roots were analyzed with light and transmission electron microscopy, and hydrogen peroxide was localized with diaminobenzidine, to define oxidative stress. The aim of this study was to investigate changes in tissue and cell structure in roots of radish seedlings treated with 10% aqueous extracts of rhizomes from the invasive knotweeds Fallopia japonica and F. Allelopathic compounds released by invasive alien plants can suppress the growth of plants in their vicinity.
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