Biostimulants as forest protection agents: Do these products have an effect against abiotic stress on a forest native species? Aspects to elucidate their action mechanisms

Santacruz‐García, Ana Carolina; Senilliani, Maria Gracia; Gomez, Adriana Teresita; Ewens, Mauricio; Yonny, Melisa E.; Villalba, Gastón Fernando; Nazareno, Mónica A.

doi:10.1016/j.foreco.2022.120446

Cited by 6 publications

(8 citation statements)

References 55 publications

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“…Except for improving plant stress and disease resistance, numerous studies have reported that phenolics and flavonoids can promote seed germination and plant growth as biostimulants [30]. Plant-extract biostimulants have been found to stimulate seed germination and plant growth in a dose-dependent manner [31,32].…”

Section: Research Sitementioning

confidence: 99%

Is Soil Covered with Climacium dendroides More Conducive to the Germination of Pinus koraiensis Seeds?

Duan

Chen

et al. 2023

Forests

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Our previous investigation has indicated that the natural regeneration of Pinus koraiensis occurs solely in soil covered by Climacium dendroides. This study aimed to determine whether C. dendroides-covered soil enhances seed germination or reduces seed decay. The experiment was divided into two parts: a simulated natural regeneration field experiment, and a greenhouse-based potted trial. For the field experiment, soils were categorized into three treatments based on C. dendroides coverage: high coverage (HCD), low coverage (LCD), and no coverage (NCD). Four forest microsites were considered: a gap in the mixed coniferous forest (GCF), a closed stand in the mixed coniferous forest (SCF), a gap in the mixed broadleaf–coniferous forest (GBC), and a closed stand in the mixed broadleaf–coniferous forest (SBC). The greenhouse experiment consisted of four treatments: HCD and LCD with similar C. dendroides coverage as the field experiment, litter-covered soil (LC), and bare soil (CK). P. koraiensis seeds were sown in each treatment’s soil in both the field and greenhouse experiments and collected after one year to analyze their germination rates, decay rates, and antioxidant capacity based on each treatment. Correlations of the germination rate, decay rate, and antioxidant capacity of P. koraiensis seeds with the soil water content (SWC) and secondary metabolites of C. dendroides in soil were examined. The results revealed that, compared to soil without C. dendroides, HCD exhibited higher germination rates (increased by 15.2% and 32.5% for dormant field seeds and dormancy-broken greenhouse seeds, respectively), ABTS+ free radical scavenging activity (RSAABTS) (22.84% and 5.98% increases, respectively), catalase activity (CAT) (5.49 U·min−1·g−1 and 1.71 U·min−1·g−1 increases, respectively), and superoxide dismutase (SOD) activity (0.33 U·g−1 and 0.68 U·g−1 increases, respectively). In the field experiment, seeds in HCD exhibited higher DPPH free radical scavenging activity (RSADPPH) (26.24% increase) and peroxidase (POD) activity (4.0 U·min−1·g−1 increase) compared to seeds in NCD. Greenhouse seeds in HCD showed a lower rot rate (27.6% decrease) than seeds in CK. In both the field and greenhouse experiments, SWC, soil p-hydroxybenzoic acid content (PHBA), soil p-coumaric acid content (PCMA), and soil vanillic acid content (VA) were significantly positively correlated with the germination rate and antioxidant capacity of P. koraiensis. Soil total phenolic content (TPH) and total flavonoid content (TFL) had minimal impacts on P. koraiensis seed germination. The primary findings suggest that C. dendroides may alleviate drought stress and enhance seed antioxidant and germination capabilities by increasing SWC, PHBA, PCMA, and VA.

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Section: Research Sitementioning

confidence: 99%

Is Soil Covered with Climacium dendroides More Conducive to the Germination of Pinus koraiensis Seeds?

Duan

Chen

et al. 2023

Forests

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“…For this assay, chlorophylls and carotenoids contents were evaluated according to methodology followed by Santacruz-Garcia et al (2022) [14]. Leaf samples from three plants per treatment were collected for this assay.…”

Section: Biochemical Characteristicsmentioning

confidence: 99%

How Does Mycorrhiza Interact with Different Levels of Fertilization on Prosopis alba?

Senilliani

Guzmán

Gomez

et al. 2022

The 3rd International Electronic Conference on Forests—Exploring New Discoveries and New Directions in Forests

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“…Biostimulants were prepared and applied according to the methodology described in Santacruz-García et al (2022) [11]. J1Y1 biostimulant is a mixture of both species (Larrea divaricata and Ilex paraguariensis, 1% w/v: 1% w/v).…”

Section: Isolation Multiplication and Application Of Amf Inocula And ...mentioning

confidence: 99%

“…In this study, (i) malondialdehyde (MDA), an oxidative stress biomarker, and (ii) photosynthetic pigments, total contents of chlorophylls and carotenoids, were evaluated according to methodology followed by Santacruz-Garcia et al (2022) [11]. Leaf samples were collected by triplicate, evaluating three plants per treatment.…”

Section: Plant Biochemical Responsesmentioning

confidence: 99%

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Could the Interaction between Arbuscular Mycorrhizal Fungi and Biostimulants Improve the Plant Physiological Status of Prosopis alba Seedlings?

Santacruz‐García

Gomez

Senilliani

et al. 2022

The 3rd International Electronic Conference on Forests—Exploring New Discoveries and New Directions in Forests

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Biostimulants as forest protection agents: Do these products have an effect against abiotic stress on a forest native species? Aspects to elucidate their action mechanisms

Cited by 6 publications

References 55 publications

Is Soil Covered with Climacium dendroides More Conducive to the Germination of Pinus koraiensis Seeds?

Is Soil Covered with Climacium dendroides More Conducive to the Germination of Pinus koraiensis Seeds?

How Does Mycorrhiza Interact with Different Levels of Fertilization on Prosopis alba?

Could the Interaction between Arbuscular Mycorrhizal Fungi and Biostimulants Improve the Plant Physiological Status of Prosopis alba Seedlings?

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