Growth and Nutrient Uptake of Orchardgrass (Dactylis glomerata L.) and Meadow Fescue (Festuca pratensis Huds.) as Affected by Rhizobacteria

Stajković-Srbinović, Olivera; Delić, Dušica; Kuzmanović, Đorđe; Sikirić, Biljana; Rasulić, Nataša; Nikolić, Biljana; Knežević-Vukčević, Jelena

doi:10.15835/nbha44110252

Cited by 9 publications

(9 citation statements)

References 22 publications

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“…We observed that the grass species exhibited highest shoot N concentration in soils where also their biomass production benefitted from soil biota (positive away soil effects for A. elatius and H. lanatus and positive home soil effects for A. odoratum). This result is in accordance with findings of Stajković-Srbinović et al (2016), who showed that inoculation with plant PGPRs enhances both plant biomass and N content in shoots of grass species (see also Baltensperger et al 1978 andWhite et al 2015). In our experiment N concentration was enhanced in shoots in soils where the species benefited from soil biota but not in roots, a pattern also found in previous inoculation studies with grasses (e.g., Baltensperger et al 1978, Djonova et al 2016.…”

Section: Effect Of Home and Away Soils On Plant Qualitysupporting

confidence: 93%

The relative importance of plant-soil feedbacks for plant-species performance increases with decreasing intensity of herbivory

et al. 2019

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Under natural conditions, aboveground herbivory and plant-soil feedbacks (PSFs) are omnipresent interactions strongly affecting individual plant performance. While recent research revealed that aboveground insect herbivory generally impacts the outcome of PSFs, no study tested to what extent the intensity of herbivory affects the outcome. This, however, is essential to estimate the contribution of PSFs to plant performance under natural conditions in the field.Here, we tested PSF effects both with and without exposure to aboveground herbivory for four common grass species in nine grasslands that formed a gradient of aboveground invertebrate herbivory. Without aboveground herbivores, PSFs for each of the four grass species were similar in each of the nine grasslands -both in direction and magnitude. In the presence of herbivores, however, the PSFs differed from those measured under herbivory exclusion, and depended on the intensity of herbivory. At low levels of herbivory, PSFs were similar in the presence and absence of herbivores but differed at high herbivory levels. While PSFs without herbivores remained similar along the gradient of herbivory intensity, increasing herbivory intensity mostly resulted in neutral PSFs in the presence of herbivores. This suggests that the relative importance of PSFs for plant-species performance in grassland communities decreases with increasing intensity of herbivory. Hence, PSFs might be more important for plant performance in ecosystems with low herbivore pressure than in ecosystems with large impacts of insect herbivores.

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Section: Effect Of Home and Away Soils On Plant Qualitysupporting

confidence: 93%

The relative importance of plant-soil feedbacks for plant-species performance increases with decreasing intensity of herbivory

et al. 2019

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“…It is known that insect herbivores, because of their high protein content and poor N use efficiency, need to ingest relatively large amounts of N (Mattson 1980, Bernays and Chapman 1994) and thus prefer to feed on plants with high N content (Berner et al 2005, Behmer 2009). In our experiment, herbivores may have been attracted to plants in which soil effects encouraged highly productive and nutrient‐rich plants (White et al 2015, Stajković‐Srbinović et al 2016, Heinze et al 2019). This is supported by the shoot N concentrations measured in this experiment.…”

Section: Discussionmentioning

confidence: 96%

Plant–soil feedback effects altered by aboveground herbivory explain plant species abundance in the landscape

Heinze

Wacker

Kulmatiski

2020

Ecology

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Citation: Heinze, J., A. Wacker, and A. Kulmatiski. 2020. Plant-soil feedback effects altered by aboveground herbivory explain plant species abundance in the landscape. Ecology 101(6):Abstract. Relatively little is known about how plant-soil feedbacks (PSFs) may affect plant growth in field conditions where factors such as herbivory may be important. Using a potted experiment in a grassland, we measured PSFs with and without aboveground insect herbivory for 20 plant species. We then compared PSF values to plant landscape abundance. Aboveground herbivory had a large negative effect on PSF values. For 15 of 20 species, PSFs were more negative with herbivory than without. This occurred because plant biomass on "home" soils was smaller with herbivory than without. PSF values with herbivory were correlated with plant landscape abundance, whereas PSF values without herbivory were not. Shoot nitrogen concentrations suggested that plants create soils that increase nitrogen uptake, but that greater shoot nitrogen values increase herbivory and that the net effect of positive PSF and greater aboveground herbivory is less aboveground biomass. Results provided clear evidence that PSFs alone have limited power in explaining species abundances and that herbivory has stronger effects on plant biomass and growth on the landscape. Our results provide a potential explanation for observed differences between greenhouse and field PSF experiments and suggest that PSF experiments need to consider important biotic interactions, like aboveground herbivory, particularly when the goal of PSF research is to understand plant growth in field conditions.

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“…Tall fescue, orchardgrass ( Dactylis glomerata L.) and Russian wildrye are considered to be of great importance among perennial forages due to their high productivity, nutritive value, durability and tolerance to unfavorable conditions. However, poor storability constrains their widespread application [23]. Therefore, the goals of this study were to investigate the effects of A .…”

Section: Introductionmentioning

confidence: 99%

Combinative effects of Azospirillum brasilense inoculation and chemical priming on germination behavior and seedling growth in aged grass seeds

Liu¹,

Zhao²,

Gao³

et al. 2019

PLoS ONE

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Germination of seeds during the transportation or after prolonged storage naturally and inevitably decreases because of ageing, but germination potential can be partially restored with seed priming treatments. A novel attempt was made to investigate the effects of combined treatments and to optimize the conditions for naturally aged seeds of tall fescue ( Festuca arundinacea Schreb.), orchardgrass ( Dactylis glomerata L.) and Russian wild rye ( Psathyrostachys juncea (Fisch.) Nevski) using an orthogonal activity level experimental design [factor A: Azospirillum brasilense concentration, factor B: three seed priming treatments (H 2 O, MgSO 4 and H 2 O 2 ) and factor C: different priming times]. Multivariate regression model analysis was applied to determine the interactive effects of pairwise factors (A and C) and to optimize experimental conditions. The results showed that the mixed treatments positively affected seed germination and seedling growth. The three seed priming treatments were the dominant factors for germination promotion, whereas the bacterial concentration had the largest effect on seedling growth and the activity of superoxide dismutase (SOD), especially root elongation. The malondialdehyde content was reduced, the activities of SOD, peroxidase and catalase were triggered, and ascorbate peroxidase activity was also affected by the co-treatment. The combined results of all determined attributes showed that A . brasilense bio-priming with H 2 O 2 priming constituted the optimal combination. The optimal bacterial concentration of A . brasilense and the time of seed priming were 52.3 × 10 6 colony forming units (CFU) mL -1 and 17.0 h, respectively.

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Growth and Nutrient Uptake of Orchardgrass (Dactylis glomerata L.) and Meadow Fescue (Festuca pratensis Huds.) as Affected by Rhizobacteria

Cited by 9 publications

References 22 publications

The relative importance of plant-soil feedbacks for plant-species performance increases with decreasing intensity of herbivory

The relative importance of plant-soil feedbacks for plant-species performance increases with decreasing intensity of herbivory

Plant–soil feedback effects altered by aboveground herbivory explain plant species abundance in the landscape

Combinative effects of Azospirillum brasilense inoculation and chemical priming on germination behavior and seedling growth in aged grass seeds

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