Fine roots of Picea abies compensate for drought stress in the rainfall reduction experiment

Lorenc, František; Pešková, Vítězslava; Modlinger, Roman; Mrnka, Libor; Tomášková, Ivana; Šenfeld, Petr; Turčáni, Marek

doi:10.12657/denbio.080.009

Cited by 3 publications

(2 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The seedlings were uprooted, washed in running tap water to get rid of the planting medium and the root systems were cut off. Following procedure described by Lorenc et al (2018), roots of X. badius -inoculated seedlings were stored in a fixative solution of 2.5% glutaraldehyde until further processed. From each sample, 30 root segments with main root length of 5 cm were randomly selected and mycorrhizal tips were counted and assessed under a stereomicroscope (Nikon SMZ800, Japan).…”

Section: Methodsmentioning

confidence: 99%

Growth improvement of Lolium multiflorum Lam. induced by seed inoculation with fungus suspension of Xerocomus badius and Serendipita indica

Liu

et al. 2019

AMB Expr

View full text Add to dashboard Cite

In this study, a pot experiment was carried out in greenhouse to investigate the potentials of Xerocomus badius and Serendipita indica to penetrate and colonize roots of ryegrass (Lolium multiflorum Lam.) and to induce beneficial effects on seed germination and seedling growth. The results showed that X. badius and S. indica successfully colonized in the root system of L. multiflorum seedlings and the root colonization rate was 72.65% and 88.42%, respectively. By microscopy, the hyphae, chlamydospores and spores produced by S. indica were observed in roots cortex of L. multiflorum seedlings. In comparison with the non-inoculated seedlings, seedlings inoculated with X. badius and S. indica showed significant increase in growth parameters with plant height, basal diameter, biomass accumulation, relative growth rate, leaf relative water content and chlorophyll content. Also, we found that seedlings inoculated with S. indica exhibited a greater growth-promotion as compared with X. badius-inoculated seedlings. No significant influence of the two fungus application has been observed with respect to seed germination. It suggested that well establishments of mutualistic symbiosis between L. multiflorum and X. badius or S. indica were not so essential to seed germination but contributed highly to the survival and growth of the seedlings.

show abstract

Section: Methodsmentioning

confidence: 99%

Growth improvement of Lolium multiflorum Lam. induced by seed inoculation with fungus suspension of Xerocomus badius and Serendipita indica

Liu

et al. 2019

AMB Expr

View full text Add to dashboard Cite

show abstract

“…Fine roots (diameter less than 2 mm) are fundamental elements in each forest soil ecosystem (Freschet et al, 2021; Lorenc et al, 2018; Weemstra et al, 2020). The main role of fine roots is related to tree nutrition, as these have the function to uptake water and nutrients from the surrounding soil (Huang et al, 2022; Jagodziński & Kałucka, 2011; Matulewski et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

A Meta‐analysis of the effects of ground‐based extraction technologies on fine roots in forest soils

Latterini,

Dyderski,

Horodecki

et al. 2023

Land Degrad Dev

View full text Add to dashboard Cite

Fine roots are an important component of forest soil as they play a key role in fundamental processes like plant nutrition and water supply. As with all the features of forest soil, the compaction related to the forest operations and, in particular, to the wood extraction via ground‐based technologies could lead to a significant impact on the presence of fine roots in the soil affected by the passage of the machines. Considering the lack of a review, we used a meta‐analytic approach to synthesise effect sizes of ground‐based extraction technologies affecting the presence of fine roots in the soil, using a multivariate mixed‐effects meta‐analytic model. The obtained results revealed that the presence of fine roots in the soil affected by the passage of the machines was significantly reduced by both skidding (g = −1.23, 95%CI ‐1.87, −0.60) and forwarding (g = −1.37, 95%CI ‐2.01, −0.74). Due to the higher soil compaction caused by forwarding, this method had a marginally but statistically significant greater impact than skidding. We further confirmed the hypothesis that soil compaction and the presence of fine roots were strongly correlated, with the latter being greatly reduced in compacted soils characterised by higher bulk density. What is more, even more than 20 years after a harvesting intervention, the presence of fine roots was significantly lower in both strip roads (forwarding) and skid trails (skidding) as compared to areas which were not impacted by the machine passage. This shows that fine roots are particularly vulnerable to forest operations. On the other hand, the majority of the trails in the database used for the meta‐analysis were created in countries that favour the creation of a small number of widely used trails. Therefore, it would be scientifically valuable to do a comparative evaluation in various forestry contexts, such as in the Mediterranean area, where the development of the forest trails network is oriented on creating a large number of trails with low traffic volumes. Because machinery‐induced soil compaction is the major driver of the decrease in fine roots in skid trails and strip roads, both the application of best management practices as well as of a smarter planning of the trail network to limit soil compaction are strongly recommended. Both applications are highly recommended to be used in the planning phase and in the practical implementation of logging activities.

show abstract

Adaptive pathway of summer maize under drought stress: Transformation of root morphology and water absorption law

Yan

Weng²,

Jing³

et al. 2022

Front. Earth Sci.

View full text Add to dashboard Cite

The adaptability of crops reflects the ability to continue to grow in the changing environment. Its adaptability in adversity plays an important role in its own growth and development. The root system is the main organ for crops to absorb water and nutrients, it can adjust its own morphology, physiological, biochemical to improve its water absorption and thus adapt to drought stress. Previous studies mostly focused on the above ground part of crops, but less on the underground part of crops due to the complexity of root observation. In order to study the adaptability of summer maize under different drought conditions, taking “Denghai 618” as the experimental material, with prototype observation and micro root window as technical support, under the ventilation shed, two treatment groups of light drought (LD) and moderate drought (MD) and the same rehydration after drought are set, as well as the normal water supply for control inside the shed (CS) and Control outside the shed (COS). The changes of root morphology and the law of root water absorption under drought and Rehydration after different drought were analyzed. The results showed that: 1) Under drought stress, the root system of maize adapts to drought by thinning and increasing fine roots to improve root water absorption. Under the MD, the root adaptation to drought is more obvious: promoting root growth. Root biomass was no significant difference between the drought treatment group and the CS. The root biomass of the drought treatment group was significantly lower than that of the COS due to the thinner root system. 2) The total amount of root water absorption in the CS and COS increased steadily with the increase of days. In the drought treatment group, the root water absorption decreased with the increase of drought degree, that is, COS > CS > LD > MD. This study provides a reference for revealing the self-adaptive regulation mechanism of summer maize roots under drought conditions.

show abstract

Fine roots of Picea abies compensate for drought stress in the rainfall reduction experiment

Cited by 3 publications

References 46 publications

Growth improvement of Lolium multiflorum Lam. induced by seed inoculation with fungus suspension of Xerocomus badius and Serendipita indica

Growth improvement of Lolium multiflorum Lam. induced by seed inoculation with fungus suspension of Xerocomus badius and Serendipita indica

A Meta‐analysis of the effects of ground‐based extraction technologies on fine roots in forest soils

Adaptive pathway of summer maize under drought stress: Transformation of root morphology and water absorption law

Contact Info

Product

Resources

About