Effects of partial defoliation on the growth, ion relations and photosynthesis of Lycium chinense Mill. under salt stress

Guo, Yongbo; Yu, Qiong; Feng, Xiaohui; Xie, Zhixiao; Liu, Xiaojing

doi:10.2298/abs150211094g

Cited by 9 publications

(3 citation statements)

References 66 publications

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“…Therefore, the soil surface temperature was lower from August to September. These results are in agreement with those of previous reports on land reclamation on coastal lands (Guo et al 2015;Li et al 2015).…”

Section: Changes In Factors Affecting Soil Respirationsupporting

confidence: 94%

Soil Respiration and Photosynthetic Carbon Gain on an Abundant Coastal Land After Plantation of Tamarix chinensis

Hussain¹,

Li²,

Feng³

et al. 2020

Handbook of Halophytes

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A field experiment was performed to assess the dynamics of soil respiration and its key influencing factors in a coastal saline wasteland along the Bohai Sea at 3 and 10 years after planting Tamarix chinensis. The results showed that the cultivation of T. chinensis, which corresponded to relatively higher root biomass and soil-infiltration ability, can result in a significantly higher rate of soil respiration than that of abandoned saline-alkali bare land as well as regulated net photosynthesis along with other CO 2 /H 2 O gas exchange parameters. The root growth rate was the key factor that affected the soil respiration rate more than the total root biomass of the plants did. The soil surface temperature was also an important factor that affected the soil respiration rate in each land, and the soil salt and water contents were closely related to only root respiration on the lands planted with 3-year-old T. chinensis due to the short-term improvement of the soil by the plant community; long-term cultivation of T. chinensis reduced the soil surface salinity during the period of the highest evaporation and provided an adequate carbon source for the growth of bacteria, fungi, and actinomycetes. This research can offer a reference value for the characteristics of carbon sequestration during the process of vegetation regeneration on coastal saline lands.

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Section: Changes In Factors Affecting Soil Respirationsupporting

confidence: 94%

Soil Respiration and Photosynthetic Carbon Gain on an Abundant Coastal Land After Plantation of Tamarix chinensis

Hussain¹,

Li²,

Feng³

et al. 2020

Handbook of Halophytes

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“…Tamarix chinensis has been reported to successfully reduce the salt concentration in saline soils and increase the abundance of soil nutrients (15,16). Lycium chinense is also classified as a halophyte (17) and can grow in highly saline soil (18). Gossypium hirsutum, commonly known as upland cotton, is classified as a salt-tolerant plant, although the levels of salt tolerance differ among cultivars (19,20).…”

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confidence: 99%

Long-Term Phytoremediation of Coastal Saline Soil Reveals Plant Species-Specific Patterns of Microbial Community Recruitment

et al. 2020

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Soil salinization is one of the major land degradation processes that decreases soil fertility and crop production worldwide. In this study, a long-term coastal saline soil remediation experiment was conducted with three salt-tolerant plant species: Lycium chinense Mill. (LCM), Tamarix chinensis Lour. (TCL), and Gossypium hirsutum Linn. (GHL). The three plant species successfully remediated the saline soil but showed different efficacies. The archaeal, bacterial, and fungal communities in barren soil and in four rhizocompartments (distal-rhizosphere soil, proximal-rhizosphere soil, rhizoplane, and endosphere) of the three plant species were assessed. All three plant species significantly decreased the richness of the archaeal communities but increased that of the bacterial and fungal communities in both the rhizosphere and rhizoplane compared with those in the barren soil. The archaeal and bacterial community structures were strongly influenced by the rhizocompartment, while specific fungal communities were recruited by different plant species. The microbial taxa whose abundance either increased or decreased significantly during remediation were identified. Soil electrical conductivity (EC) was identified as the main factor driving the variation in microbial community composition between the remediated and barren soil, and total nitrogen (TN), total carbon (TC), and available potassium (AK) were the main factors driving the differences among plant species. This report provides new insights into the responses of the root zone microbial communities of different salt-tolerant plant species during phytoremediation. IMPORTANCE Despite knowing that phytoremediation by salt-tolerant plants is an effective technology for ameliorating saline soils and that microorganisms contribute significantly to plant stress tolerance and soil fertility, we still lack a comprehensive understanding of how microbes respond to the growth of salt-tolerant plants and the subsequent decline in soil salinity. The results of this study revealed different response patterns among bacterial, archaeal, and fungal communities and indicated that the decline in archaeal abundance might be a sign of successful remediation of coastal saline soils. The recruitment of specific fungal communities by different plant species indicated the importance of fungi in plant species-specific remediation functions. We also identified the taxa that may play key roles during remediation, and these taxa could potentially be used as indicators of phytoremediation. Overall, these findings highlight the importance of microbes in the phytoremediation of saline soil and suggest that the mechanisms involved are plant species specific.

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“…After 4 wk, the plantlets were transferred into polyethylene vessels with one‐half Hoagland nutrient solution to grow for 2 wk before salinity stress was induced. The composition of the one‐half Hoagland nutrient solution (pH = 5.7) was: 2 mM KNO 3 , 0.5 mM KH 2 PO 4 , 0.5 mM MgSO 4 ·7H 2 O, 0.5 mM Ca(NO 3 )2·4H 2 O, 50 μM H 3 BO 3 , 10 μM MnCl 2 ·4H 2 O, 1.6 μM ZnSO 4 ·7H 2 O, 0.6 μM CuSO 4 , 0.05 μM Na 2 MoO 4 ·2H 2 O, 0.06 mM Fe‐citrate·2H 2 O (Delden et al., 2020; Grant et al., 1993; Guo et al., 2015). The salinity stress treatment was carried out by adding 50 and 250 mM NaCl in the polyethylene vessels, followed by sampling at 0, 1, and 12 h after treatment, respectively, and samples without any NaCl treatment were collected as the control group.…”

Section: Methodsmentioning

confidence: 99%

Transcriptome‐wide identification and analysis of the KT/HAK/KUP family in black goji under NaCl stress

Jia

Richard

et al. 2022

Agronomy Journal

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Black goji (Lycium ruthenicum Murr.) is a typical salt-tolerant plant that can maintain normal growth under high NaCl treatment and is distributed in saline areas in northwestern China. The KT/HAK/KUP (KUP) gene family plays an essential role in K absorption and transport process. However, the role of the KUP gene family in the salt tolerance of black goji has not yet been investigated. Therefore, the objective was to identify the members of LrKUPs in black goji by bioinformatics based on Illumina sequencing transcriptome data. Moreover, the expression profiles of LrKUPs under different NaCl treatments were analyzed based on fragments per kilobase of exons per million mapped reads (FPKM) values above 5, using real-time quantitative polymerase chain reaction (RT-qPCR). A total of 31 LrKUPs were identified, and 19 LrKUPs containing the same K + transporter domain were used to construct a phylogenetic tree and classified into four clusters. Six LrKUPs with full-length sequences were discovered by open reading frame (ORF). They were localized to the plasma membrane and the predicted transmembrane regions were 12-14. The selected LrKUPs exhibited different expression patterns under NaCl stresses. It is noteworthy that LrKUPs (-4, -9, -11, -31) from leaves and stems could withstand higher concentration and longer duration of salt stress compared with roots. In the present study, the KUP gene family was discovered as a potential stress resistance regulator for black goji growth and development, this provides candidate genes for future functional research of LrKUPs.

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Effects of partial defoliation on the growth, ion relations and photosynthesis of Lycium chinense Mill. under salt stress

Cited by 9 publications

References 66 publications

Soil Respiration and Photosynthetic Carbon Gain on an Abundant Coastal Land After Plantation of Tamarix chinensis

Soil Respiration and Photosynthetic Carbon Gain on an Abundant Coastal Land After Plantation of Tamarix chinensis

Long-Term Phytoremediation of Coastal Saline Soil Reveals Plant Species-Specific Patterns of Microbial Community Recruitment

Transcriptome‐wide identification and analysis of the KT/HAK/KUP family in black goji under NaCl stress

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