Mastreviruses in the African World: Harbouring Both Monocot and Dicot Species

Searching for new bio-based herbicides is crucial for decreasing chemical pollution, protecting the environment, and sustaining biodiversity. Origanum vulgare is considered a promising source of essential oil with herbicidal effect. The mode of action is not known. The present study focused on (1) comparison of phytotoxic activity of Origanum vulgare EO on monocot (Triticum aestivum and Hordeum vulgare) and dicot species (Lepidium sativum and Sinapis alba); (2) and evaluating other antimicrobial biological activities against phytopatogen bacteria (Clavibacter michiganensis, Pseudomonas syringae pv. phaseolicola, Pseudomonas savastanoi, and Xanthomonas campestris); antifungal activity against Monilinia fructicola, Aspergillus niger, Penicillium expansum, and Botrytis cinerea; cytotoxic activity and antioxidant activity. According to the GC/MS analyses, the EO belongs to the thymol chemotype O. vulgare with its high content of thymol (76%). Germination of all four species was not influenced by EO. The phytotoxic effect was statistically significant in the monocot species, while in the dicot species the opposite was observed—a stimulation effect, which was also statistically significant. Strong biological activity of O. vulgare EO was noted on all phytopatogen bacteria and fungi in the highest dose. Cytotoxic activity showed an IC50 = 50.5 μg/mL. Antioxidant activity showed an IC50 = 106.6 μg/mL after 45 min experimental time. Based on the presented results, it is possible to conclude that thymol chemotype O. vulgare essential oil could be potentially used as a herbicide with selective effects on monocot plant species.

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Potential Phytotoxic Effect of Essential Oil of Non-Native Species Impatiens parviflora DC.

Plants ◽

10.3390/plants8070241 ◽

2019 ◽

Vol 8 (7) ◽

pp. 241 ◽

Cited By ~ 3

Author(s):

Jana Jurová ◽

Martina Matoušková ◽

Anna Wajs-Bonikowska ◽

Danuta Kalemba ◽

Marek Renčo ◽

...

Keyword(s):

Seed Germination ◽

Essential Oil ◽

Plant Species ◽

Native Species ◽

Root Elongation ◽

Invasive Plant ◽

Main Compound ◽

Impatiens Parviflora ◽

Phytotoxic Effect ◽

Dicot Species

Impatiens parviflora is non-native invasive plant species occupying large areas all over the Europe and threatens native communities by altering their species composition and reducing native biodiversity. The factor responsible for its spreading could be explained by releasing biochemical to the environment. On the other hands, high demand on secondary metabolites as potential source of new ecofriendly biocides could be beneficial. The analysis of I. parviflora essential oil (EO) led us to identify more than 60 volatiles. The main compound was hexahydrofarnesyl acetone, other dominant components were phytol, carvacrol, germacra-4(15),5,10(14)-trien-1-α-ol, and pentacosane. The potential phytotoxic effect of I. parviflora EO collected in two vegetation periods (summer and autumn) was evaluated on seed germination and root elongation of three dicot species (Raphanus sativus, Lepidum sativum, and Lactuca sativa) and on one monocot species (Triticum aestivum). The seed germination of only one dicot species, L. sativa, was affected by both EOs. In contrast, seed germination of monocot species T. aestivum was influenced only by the highest doses of EOs isolated from I. parviflora in autumn. The root elongation of tested plant species was less influenced by I. parviflora EOs. L. sativum showed sensitivity to one dose of EOs hydrodistilled in summer, while the monocot species was influenced by both EOs samples in highest doses. Our findings revealed that I. parviflora contained phenolics that were phytotoxic to the germination of some plant species, mainly at higher EOs doses, while root elongation of tested plants was not suppressed by essential oils.

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Genome-wide identification and expression analysis of the dof (DNA binding with one finger) protein family in monocot and dicot species

Physiological and Molecular Plant Pathology ◽

10.1016/j.pmpp.2019.101431 ◽

2019 ◽

Vol 108 ◽

pp. 101431 ◽

Cited By ~ 1

Author(s):

Shuai Wang ◽

Yaping Bai ◽

Pinghua Li ◽

Long Yang ◽

Xianglan Wang

Keyword(s):

Dna Binding ◽

Expression Analysis ◽

Protein Family ◽

Finger Protein ◽

Genome Wide ◽

Dicot Species

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Diel time-courses of leaf growth in monocot and dicot species: endogenous rhythms and temperature effects

Journal of Experimental Botany ◽

10.1093/jxb/erq049 ◽

2010 ◽

Vol 61 (6) ◽

pp. 1751-1759 ◽

Cited By ~ 73

Author(s):

Richard Poiré ◽

Anika Wiese-Klinkenberg ◽

Boris Parent ◽

Michael Mielewczik ◽

Ulrich Schurr ◽

...

Keyword(s):

Temperature Effects ◽

Leaf Growth ◽

Endogenous Rhythms ◽

Time Courses ◽

Dicot Species

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On the Likely Palaeoelevation of the Turonian – Coniacian Arman Flora Site (North-Eastern Asia)

Fossil Imprint ◽

10.2478/if-2018-0011 ◽

2018 ◽

Vol 74 (1-2) ◽

pp. 159-164 ◽

Cited By ~ 1

Author(s):

Alexei B. Herman

Keyword(s):

Late Cretaceous ◽

Coastal Plain ◽

Temperate Climate ◽

Eastern Asia ◽

North Eastern ◽

Warm Temperate ◽

Analytical Errors ◽

High Diversity ◽

Eastern Russia ◽

Dicot Species

The Turonian - Coniacian (Late Cretaceous) Arman Flora (North-eastern Russia, Magadan District) exhibits a high diversity of fossil angiosperms (28 dicot species). Based on their physiognomy, palaeoclimate variables were estimated showing that the flora experienced a humid warm-temperate climate without any pronounced seasonality. Palaeoclimate variables estimated for the coastal plain floras (Penzhina, Kaivayam and Tylpegyrgynai floras, North-eastern Russia) are the same (within analytical errors) as those estimated for the Arman Flora that existed within uplands of the Okhotsk-Chukotka volcanogenic belt. This conclusion implies that the elevation of the intermontane basin of the Arman Flora biotope was not high, presumably not more than 600 m - and not sufficient to be reflected in palaeoclimate experienced by the Arman Flora.

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Polymorphic regions in plant genomes detected by an M13 probe

Genome ◽

10.1139/g89-517 ◽

1989 ◽

Vol 32 (5) ◽

pp. 824-828 ◽

Cited By ~ 24

Author(s):

P. A. Zimmerman ◽

N. Lang-Unnasch ◽

C. A. Cullis

Keyword(s):

Animal Species ◽

Fragment Length Polymorphism ◽

Higher Plants ◽

Genome Chromosome ◽

Plant Genomes ◽

Bacteriophage M13 ◽

Hypervariable Minisatellites ◽

M13 Probe ◽

Restriction Fragment Length ◽

Dicot Species

A sequence containing two clusters of 15 base pair repeats from the protein III gene in the bacteriophage M13 has been shown to detect hypervariable minisatellites in many animal species. We have shown that this M13 fragment will detect similar sequences in higher plants including monocots, dicots, and gymnosperms. In addition, polymorphisms were demonstrated in three dicot species. The amount of this sequence has no relationship with the size of the genome, chromosome number, or amount of repetitive DNA in the species tested.Key words: bacteriophage M13, monocot, dicot, gymnosperm, restriction fragment length polymorphism.

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