Models of mycorrhizal colonization patterns and strategies induced by biostimulator treatments in Zea mays roots

Pop-Moldovan, Victoria; Corcoz, Larisa; Stoian, Valentina Ancuța; Moldovan, Cristina; Pleşa, Anca; Vâtcă, Sorin; Stoian, Vlad; Vidican, Roxana

doi:10.3389/fpls.2022.1052066

Cited by 3 publications

(2 citation statements)

References 62 publications

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“…In particular, the differences in mycorrhizal colonization (MyCP-%), frequency and intensity of mycorrhizal colonization (F and M-%), and occurrence of arbuscules (A-%) and vesicles (V-%) in the mycorrhizal root fragments of the grafted vines (AL-420A) compared to the own-rooted vines (AL-ORV) confirmed the role of rootstock genotype as one of the major bio-factors able to influence AM root colonization and the composition and species richness of AMF communities. Grafted plants showed higher values for all the mycorrhizal colonization parameters related to the greater presence of arbuscules compared to vesicles, which may be associated with faster root turnover and a higher demand for nutrient transfer from AM fungi to plants [57]. The greater presence of vesicles observed in the ungrafted vines can be interpreted as a storage strategy, which consists of a better adaptation of these vines (greater stomatal conductance and higher leaf chlorophyll content) to extreme climate conditions [58].…”

Section: Discussionmentioning

confidence: 92%

Soil–Plant Interaction Mediated by Indigenous AMF in Grafted and Own-Rooted Grapevines under Field Conditions

et al. 2023

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Plant–soil biota represent a unique living system crucial for improving crops’ adaptation to climate change. In vineyards, plant–soil relations are mediated by rootstock–scion interaction, with grafted vines being the main plant material employed in vineyard planting. The interaction between two deeply different biological systems such as Vitis vinifera sativa and the American Vitis species may modify vines’ adaptation to abiotic stress. The aim of this study was to investigate the physiological response (chlorophyll content—CHL; stomatal conductance—gs) of grafted and ungrafted vines and assess the involvement of Arbuscular Mycorrhizal Fungi (AMF) in this response. In two vineyards located in Central Italy, the presence of AMF was assessed in the roots of grafted and ungrafted cv ‘Aleatico’ vines. The morphological traits of AMF and root mycorrhizal colonization differed in the grafted and ungrafted vines. Under limited climate conditions, ungrafted vines showed better leaf resilience traits (high CHL and gs values) and larger AMF storage organs (vesicles). On the other hand, the grafted ones—which are more sensitive to climate conditions (lower gs and CHL)—involved AMF colonization strategies (greater abundance of arbuscoles and mycorrhizal colonization potential) linked to the improved uptake and transport of water from the bulk soil to the vine. Taken together, these findings highlight different mycorrhizal colonization strategies and storage behaviors in grafted and ungrafted vineyards and with respect to different physical and chemical soil traits.

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Section: Discussionmentioning

confidence: 92%

Soil–Plant Interaction Mediated by Indigenous AMF in Grafted and Own-Rooted Grapevines under Field Conditions

et al. 2023

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“…The presence of arbuscules indicates an increased transfer between the fungal partner and its host, while the presence of vesicles is associated with a higher nutrient reserve quantity in the mycorrhizal system that can be stored in these structures. Both F% and I% were used to calculate the colonization degree (%) to which the assessment of mycorrhizal strategy was performed [39,40].…”

Section: Determination Of Arbuscular Mycorrhizal Potentialmentioning

confidence: 99%

Soil Properties and Forest Decline in the North-Western Part of Romania

Onet,

Vidican,

Ghergheles

et al. 2024

Forests

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The paper presents the study of the soil quality and health expressed by the chemical and biological properties in a research field placed at Varciorog, Bihor County, Romania. The soil samples were collected from 3 soil variants in March 2023. In each soil variant, some soil chemical parameters and the abundance of bacteria were determined. The frequency and intensity of colonization, along with arbuscules and vesicles, were scored to determine the mycorrhizal potential of each soil. The community-level physiological profile was used to determine the functional microbiome and its ability to decompose a specific set of substrates. In the control variant (CTRL), which is a functional forest cultivated with beech in a proportion of 90%, the soil properties were compared with those determined from Site 1 (a declined mixed forest) and from Site 2 (chestnut forest in a stage of complete drying). The data were statistically processed with a one-way ANOVA test, followed by the Duncan post-hoc test, which revealed significant variation in the potential of microbial functional communities across the analyzed sites. Also, the soil parameters that significantly varied in the 3 soil variants were bacterial number, pH, humus, exchangeable aluminum, coarse sand, dust, and fine sand. The Pearson correlation was computed to study the links between bacterial numbers and chemical parameters. The results showed strong correlations between most of the studied soil properties. The Ecoplates approach to soil functional microbiome highlighted various differences between the microbial communities of the three tested sites. Mycorrhizal colonization shows different potentials for symbiosis formation. The peak of mycorrhizal colonization was in declined forest, with 43.36% colonization frequency and 24.56% intensity. Arbuscules reached 11.36% in declined forest, while in control and decayed sites, the indicator was under 4%. Vesicles are more associated with control and decayed forests, with values of presence over 1.30%. As an indicator of microbial general activity, the sum of recorded activities was higher in declined and decayed forests. At these sites, the activity of the functional microbiome was amplified. The decline process activates a higher diversity of functional groups and is associated with a larger area of substrate decomposition capacity, which indicates a more extensive range of microbial functions related to breaking down organic matter.

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The Influence of Sowing Date on the Primary Yield Components of Maize

Domokos,

Șimon,

Chețan

et al. 2024

Agronomy

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The sowing date of maize significantly impacts its main yield elements. The experiment, conducted at the Research and Development Station for Cattle Breeding (R.D.S.C.B.) Târgu Mureș, Sângeorgiu de Mureș, România, from 2018 to 2021, involved nine maize hybrids from different maturity groups, sown on three dates: early sowing (ES) at 6 °C soil temperature, optimal sowing (OS) at 10 °C soil temperature, and late sowing (LS) two weeks after the optimal date. The experiment was placed in a poly-factorial experience of type: A × B × C × C − R: 3 × 9 × 4 − 3, organized according to the subdivided plots method. The study examined the influence of sowing date on grain yield (GY), thousand-kernel weight (TKW), test weight (TW), percentage of grains per cob (% G/C), and grain humidity at harvest (GHH). The results indicated that yield was not negatively impacted by early or late sowing compared to the optimal date, with differences of 52 kg ha−1 between ES and OS, 147 kg ha−1 between ES and LS, and 95 kg ha−1 between OS and LS. ES increased TW (723.4 kg hl−1) and % G/C (86.7%), but reduced GY (13,377 kg ha−1), TKW (335.3 g), and GHH (19.5%). Conversely, LS positively influenced GY (13,524 kg ha−1), TKW (356.7 g), and GHH (23.9%), but negatively affected TW (692.8 kg hl−1) and % G/C (84.9%). Yield data obtained by P9900 and Kapitolis hybrids suggest that they are suitable for early sowing.

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Models of mycorrhizal colonization patterns and strategies induced by biostimulator treatments in Zea mays roots

Cited by 3 publications

References 62 publications

Soil–Plant Interaction Mediated by Indigenous AMF in Grafted and Own-Rooted Grapevines under Field Conditions

Soil–Plant Interaction Mediated by Indigenous AMF in Grafted and Own-Rooted Grapevines under Field Conditions

Soil Properties and Forest Decline in the North-Western Part of Romania

The Influence of Sowing Date on the Primary Yield Components of Maize

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