Mycorrhiza improves plant growth and photosynthetic characteristics of tea plants in response to drought stress

Dai, Fengjun; Rong, Zi-Yi; Wu, Qiang-Sheng; Abd_Allah, Elsayed Fathi; Liu, Chunyan; LIU, SHENGRUI

doi:10.32604/biocell.2022.018909

Cited by 9 publications

(3 citation statements)

References 39 publications

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“…Their combination was also used in the experiment. Based on the available information, both the mycorrhizal mix and the hydroabsorbent Hydrogel ® are expected to improve the properties of the soil environment [16,17] and increase the resistance of woody plants to drought, especially in the case of mycorrhizal mix [18,19]. Fungi primarily have the ability to make water and nutrients available to plants through their mycelium and to help plants survive a longer period of drought compared to plants without an established mycorrhizal symbiosis [20,21], they influence the physical properties of soils, the formation of soil aggregates and their stability, as well as the content of organic matter in the soil.…”

Section: Discussionmentioning

confidence: 99%

Wpływ zastosowania uzdatniaczów gleby na temperaturę i wilgotność środowiska glebowego

Jeřábková,

Salaš,

Burgová

2024

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In cities, environmental and social impacts are increased every year due to high temperatures due to the heat island of the city. An effective struggle against the heat island of the city is the green infrastructure, where woody plants such as trees and shrubs play an irreplaceable role. Wood in the city is affected by a number of stress factors, especially high temperatures and lack of precipitation. In order for them to perform all their important functions and help reduce the negative impacts of the city's heat island, all requirements for their successful development and growth must be fulfilled. Soil conditions are an important factor affecting the condition of trees. Unsuitable soil conditions which include lack of water, compacted soil, result in insufficient development of the root system which directly affects the quality of the above-ground part of the plants. A possible treatment to improve the soil environment in the root zone of trees is the use of soil conditioners applied in the form of soil injection. The paper deals with the effect of soil conditioners (Hydrogel®, mycorrhizal mix Endomyk PROF + Trichoderma, and their combination) in the form of injection on the temperature and humidity conditions of the soil environment in a young plants of trees (species) Acer campestre L. in the city of Znojmo (South Moravia region). Plants without application of any preparation served as a Control variant. Before the actual application of conditioners MINILOG data loggers with temperature sensors and VIRRIB moisture sensors were placed in the soil which recorded changes in soil temperature and volumetric soil moisture in six-hour intervals every day in the period from February 2021 till December 2022. These changes were recorded in two profiles 0.1 - 0.4 and 0.4 - 0.7 meters. From the recorded results, it can be said that the application of soil conditioners had a significant effect on the temperature and humidity conditions of the soil environment. The variant with the soil conditioner Hydrogel® and the variant with the soil conditioner Hydrogel® in combination with the mycorrhizal mix in most cases show higher values of soil moisture and temperature compared to the Control variant. This trend is most evident in the soil profile of 0.4 - 0.7 m in the growing season.

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Section: Discussionmentioning

confidence: 99%

Wpływ zastosowania uzdatniaczów gleby na temperaturę i wilgotność środowiska glebowego

Jeřábková,

Salaš,

Burgová

2024

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“…Plant growth regulators (PGRs) show diverse functions in plants under various stress conditions (Sabagh et al, 2021;Mir et al, 2022;Dai et al, 2022;Corpas et al, 2022). These are chemical messengers are produced in plants in small concentrations and control several morphophysiological and biochemical attributes of plants (Ahmad et al, 2022;Mubarik et al, 2021;Sabagh et al, 2021;Mir et al, 2022;Raza et al, 2022b).…”

Section: Introductionmentioning

confidence: 99%

Role of foliar spray of plant growth regulators in improving photosynthetic pigments and metabolites in Plantago ovata (Psyllium) under salt stress–A field appraisal

Samad¹,

Shaukat²,

ANSARI³

et al. 2023

Biocell

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Salinity is one of the major abiotic factors that limit the growth and productivity of plants. Foliar application of plant growth regulators (PGRs) may help plants ameliorate the negative impacts of salinity. Thus, a field experiment was conducted at the Botanical Garden University of Balochistan, Quetta, to explore the potential role of PGRs, i.e., moringa leaf extract (MLE; 10%), proline (PRO; 1 µM), salicylic acid (SA; 250 µM), and thiourea (TU; 10 mM) in ameliorating the impacts of salinity (120 mM) on Plantago ovata, an important medicinal plant. Salinity hampered plant photosynthetic pigments and metabolites but elevated oxidative parameters. However, foliar application of PGRs enhanced photosynthetic pigments, including Chl b (21.11%), carotenoids (57.87%) except Chl a, activated the defense mechanisms by restoring and enhancing the metabolites, i.e., soluble sugars (49.68%), soluble phenolics (33.34%), and proline (31.47%), significantly under salinity stress. Furthermore, foliar supplementation of PGRs under salt stress led to a decrease of about 43.02% and 43.27% in hydrogen peroxide and malondialdehyde content, respectively. Thus, PGRs can be recommended for improved photosynthetic efficiency and metabolite content that can help to get better yield under salt stress, with the best and most effective treatments being those of PRO and MLE to predominately ameliorate the harsh impacts of salinity.

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“…As we all know, the economic value of tea, which is one of the world's top three non-alcoholic beverages, cannot be underestimated. Tea plants are very sensitive to soil moisture levels, mainly due to their characteristics of liking humidity and being averse to waterlogging; therefore, water has been identified as a decisive factor affecting the growth and quality of tea trees [16]. The present study aimed to evaluate different strengths of exogenous EE-GRSP in response to plant growth, the root system architecture, water uptake, and tea quality, as well as determine the potential regulatory mechanisms in tea (Camellia sinensis (L.) O. Ktze) seedlings.…”

Section: Introductionmentioning

confidence: 99%

Exogenous Easily Extractable Glomalin-Related Soil Protein Induces Differential Response in Plant Growth of Tea Plants via Regulating Water Channel Protein Expression

Wu,

Hao,

Dai

et al. 2023

Agronomy

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Glomalin, a glycoprotein secreted by arbuscular mycorrhizal fungi (AMFs), exhibits multiple beneficial functions in regard to plant growth. However, the roles and regulatory mechanisms of exogenous easily extractable glomalin-related soil protein (EE-GRSP) in water and their effects on the quality of tea plants (Camellia sinensis (L.) O. Ktze.) remain unclear. The present study aimed to investigate the effects of a quarter-strength exogenous EE-GRSP solution (1/4 EE-GRSP), half-strength exogenous EE-GRSP solution (1/2 EE-GRSP), three-quarter-strength exogenous EE-GRSP solution (3/4 EE-GRSP), and full-strength exogenous EE-GRSP solution (full EE-GRSP) on plant growth, the root system architecture, leaf water status, and the tea quality of tea seedlings, along with examining the changes in the relative expression of water channel proteins (AQPs) in tea plants. The results indicated that exogenous EE-GRSP of different strengths had different effects on both the growth performance (height, leaf numbers, and biomass) and root architecture parameters of tea seedlings, and the best positive effects on plant growth and the root architecture appeared under the three-quarter-strength exogenous EE-GRSP treatment. Similarly, the exogenous EE-GRSP application also differently affected tea quality indicators, in which only the quarter- and half-strength exogenous EE-GRSP solutions significantly increased most of the indicators, including carbohydrates, tea polyphenols, total amino acids, catechins, and flavonoids. Moreover, the half- and three-quarter-strength exogenous EE-GRSP treatments significantly increased the leaf relative water content (LRWC), but all of the exogenous EE-GRSP treatments significantly decreased the leaf water potential (LWP). Furthermore, the expression of AQP genes in the root system of tea plants was related to the strength of the exogenous EE-GRSP treatments, and different genes were significantly up-regulated or down-regulated under the treatment of exogenous EE-GRSP at different strengths. Moreover, the correlation analysis showed that most of the relative expression of AQPs was significantly and positively correlated with tea plant growth, the root architecture, and the leaf relative water content, but negatively correlated with tea quality indicators; however, the expression of CsNIPs and CsSIPs was markedly and negatively correlated with plant growth performance. Therefore, we speculated that the application of exogenous EE-GRSP could facilitate plant growth and improve the quality indirectly by regulating the expression of root AQPs, thus ameliorating the water uptake and nutrient accumulation in tea plants.

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Mycorrhiza improves plant growth and photosynthetic characteristics of tea plants in response to drought stress

Cited by 9 publications

References 39 publications

Wpływ zastosowania uzdatniaczów gleby na temperaturę i wilgotność środowiska glebowego

Wpływ zastosowania uzdatniaczów gleby na temperaturę i wilgotność środowiska glebowego

Role of foliar spray of plant growth regulators in improving photosynthetic pigments and metabolites in Plantago ovata (Psyllium) under salt stress–A field appraisal

Exogenous Easily Extractable Glomalin-Related Soil Protein Induces Differential Response in Plant Growth of Tea Plants via Regulating Water Channel Protein Expression

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