Effects of fulvic acid on the photosynthetic and physiological characteristics of <i>Paeonia ostii</i> under drought stress

Fang, Ziwen; Wang, Xiaoxiao; Zhang, Xiayan; Zhao, Daqiu; Tao, Jun

doi:10.1080/15592324.2020.1774714

Cited by 31 publications

(15 citation statements)

References 37 publications

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“…Finally, the leaves were weighed, which was recorded as the dry weight (DW). The leaf relative water content (%) was then calculated as (FW-DW)/ FW × 100% [17].…”

Section: Leaf Relative Water Contentmentioning

confidence: 99%

Effects of High-Temperature Stress on Photosynthetic Characteristics and Antioxidant Enzyme System of Paeonia ostii

Wang¹,

Fang²,

Zhao³

et al. 2022

Phyton

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Paeonia ostii is an economically important oil crop, which has been widely cultivated in the middle and lower reaches of the Yangtze River in China in recent years. Although P. ostii is highly adaptable to the environment, the prolonged high summer temperature in this region severely inhibits its growth, which adversely affects seed yield and quality. In this study, P. ostii plants were subjected to 20°C/15°C (day/night) and 40°C/35°C (day/night) temperatures for 15 days. The changes in physiological and biochemical indicators of P. ostii under high-temperature stress were initially investigated. The results showed that with the deepening of leaf etiolation, chlorophyll a and chlorophyll b concentration, carotenoid concentration, Soil Plant Analysis Development (SPAD) values and leaf relative water content decreased significantly, while both relative electrical conductivity (REC) and free proline concentration showed an upward trend. Meanwhile, the continuous accumulation of reactive oxygen species (ROS) in P. ostii plants, led to an increased activity of antioxidant enzymes including superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX). Moreover, with the extension of the high-temperature treatment, the anatomical structures of P. ostii were destroyed, resulting in a decreased photochemical efficiency of the photosystem II (PSII) reaction center and photosynthesis was inhibited. Taken together, these results provide reference values for understanding the physiological response of P. ostii to hightemperature stress and establish a foundation for further research on the relevant underlying molecular mechanisms.

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“…Finally, the leaves were weighed, which was recorded as the dry weight (DW). The leaf relative water content (%) was then calculated as (FW-DW)/ FW × 100% [17].…”

Section: Leaf Relative Water Contentmentioning

confidence: 99%

Effects of High-Temperature Stress on Photosynthetic Characteristics and Antioxidant Enzyme System of Paeonia ostii

Wang¹,

Fang²,

Zhao³

et al. 2022

Phyton

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“…For instance, drought stress leads to a rapid accumulation of reactive oxygen species (ROS) in plant tissue, causing a variety of negative effects at the cellular level [66], which can be attenuated by the function of ascorbic acid. Notably, FA application was shown to improve ascorbate, glutathione and flavonoids, by the upregulation of genes related to their metabolism, ameliorating the negative effects of drought stress [67,68].…”

Section: Fulvic Acidsmentioning

confidence: 99%

Recent Advances in the Molecular Effects of Biostimulants in Plants: An Overview

et al. 2021

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As the world develops and population increases, so too does the demand for higher agricultural output with lower resources. Plant biostimulants appear to be one of the more prominent sustainable solutions, given their natural origin and their potential to substitute conventional methods in agriculture. Classified based on their source rather than constitution, biostimulants such as humic substances (HS), protein hydrolysates (PHs), seaweed extracts (SWE) and microorganisms have a proven potential in improving plant growth, increasing crop production and quality, as well as ameliorating stress effects. However, the multi-molecular nature and varying composition of commercially available biostimulants presents challenges when attempting to elucidate their underlying mechanisms. While most research has focused on the broad effects of biostimulants in crops, recent studies at the molecular level have started to unravel the pathways triggered by certain products at the cellular and gene level. Understanding the molecular influences involved could lead to further refinement of these treatments. This review comprises the most recent findings regarding the use of biostimulants in plants, with particular focus on reports of their molecular influence.

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“…Using Paeonia ostii plants under natural drought stress (it was mainly characterized by low soil water content, and the roots of plants cannot absorb enough water to compensate for the consumption of transpiration) the effect of fulvic acid was studied (Fang et al, 2020). The fulvic acid treatment increased the leaf water content and antioxidant enzyme activities and decrease proline content, ROS accumulation, and relative electrical conductivity.…”

Section: Humic Acid and Fulvic Acidmentioning

confidence: 99%

“…CAB37 is a important regulatory site of photosynthesis under drought stress (Li et al, 2020d). AGT1 is related to photosynthetic processing and photorespiration (Fang et al, 2020). At4g26520 is ABA dependent signaling pathway in drought response (Fang et al, 2020).…”

Section: Humic Acid and Fulvic Acidmentioning

confidence: 99%

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Transcriptomics of Biostimulation of Plants Under Abiotic Stress

et al. 2021

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Plant biostimulants are compounds, living microorganisms, or their constituent parts that alter plant development programs. The impact of biostimulants is manifested in several ways: via morphological, physiological, biochemical, epigenomic, proteomic, and transcriptomic changes. For each of these, a response and alteration occur, and these alterations in turn improve metabolic and adaptive performance in the environment. Many studies have been conducted on the effects of different biotic and abiotic stimulants on plants, including many crop species. However, as far as we know, there are no reviews available that describe the impact of biostimulants for a specific field such as transcriptomics, which is the objective of this review. For the commercial registration process of products for agricultural use, it is necessary to distinguish the specific impact of biostimulants from that of other legal categories of products used in agriculture, such as fertilizers and plant hormones. For the chemical or biological classification of biostimulants, the classification is seen as a complex issue, given the great diversity of compounds and organisms that cause biostimulation. However, with an approach focused on the impact on a particular field such as transcriptomics, it is perhaps possible to obtain a criterion that allows biostimulants to be grouped considering their effects on living systems, as well as the overlap of the impact on metabolism, physiology, and morphology occurring between fertilizers, hormones, and biostimulants.

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Effects of fulvic acid on the photosynthetic and physiological characteristics of Paeonia ostii under drought stress

Cited by 31 publications

References 37 publications

Effects of High-Temperature Stress on Photosynthetic Characteristics and Antioxidant Enzyme System of Paeonia ostii

Effects of High-Temperature Stress on Photosynthetic Characteristics and Antioxidant Enzyme System of Paeonia ostii

Recent Advances in the Molecular Effects of Biostimulants in Plants: An Overview

Transcriptomics of Biostimulation of Plants Under Abiotic Stress

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