Evaluating the resistance mechanism of Atriplex leucoclada (Orache) to salt and water stress; A potential crop for biosaline agriculture

Alam, Hasnain; Zamin, Muhammad; Adnan, Muhammad; Ahmad, Nisar; Nawaz, Taufiq; Saud, Shah; Basir, Abdul; Liu, Ke; Harrison, Matthew T.; Hassan, Shah; Alharby, Hesham F.; Alzahrani, Yahya; Alghamdi, Sameera A.; Majrashi, Ali; Alharbi, Basmah M.; Alabdallah, Nadiyah M.; Fahad, Shah

doi:10.3389/fpls.2022.948736

Cited by 15 publications

(6 citation statements)

References 82 publications

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“…1 , Additional file 7 : Table S1), which can tolerate the dry conditions of this zone, are present [ 34 , 43 ]. One of the mechanisms described in other species of Atriplex is the accumulation of high salt concentrations within their cellular vacuoles, which helps to mitigate water stress [ 61 ]. On the other hand, species of Fagonia have been shown to be great accumulators of carotenoids, total soluble sugars, sucrose, and proline to overcome drought stress [ 62 ].…”

Section: Discussionmentioning

confidence: 99%

Testing the stress gradient hypothesis in soil bacterial communities associated with vegetation belts in the Andean Atacama Desert

Mandaković

Aguado-Norese

García-Jiménez

et al. 2023

Environmental Microbiome

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Background Soil microorganisms are in constant interaction with plants, and these interactions shape the composition of soil bacterial communities by modifying their environment. However, little is known about the relationship between microorganisms and native plants present in extreme environments that are not affected by human intervention. Using high-throughput sequencing in combination with random forest and co-occurrence network analyses, we compared soil bacterial communities inhabiting the rhizosphere surrounding soil (RSS) and the corresponding bulk soil (BS) of 21 native plant species organized into three vegetation belts along the altitudinal gradient (2400–4500 m a.s.l.) of the Talabre–Lejía transect (TLT) in the slopes of the Andes in the Atacama Desert. We assessed how each plant community influenced the taxa, potential functions, and ecological interactions of the soil bacterial communities in this extreme natural ecosystem. We tested the ability of the stress gradient hypothesis, which predicts that positive species interactions become increasingly important as stressful conditions increase, to explain the interactions among members of TLT soil microbial communities. Results Our comparison of RSS and BS compartments along the TLT provided evidence of plant-specific microbial community composition in the RSS and showed that bacterial communities modify their ecological interactions, in particular, their positive:negative connection ratios in the presence of plant roots at each vegetation belt. We also identified the taxa driving the transition of the BS to the RSS, which appear to be indicators of key host-microbial relationships in the rhizosphere of plants in response to different abiotic conditions. Finally, the potential functions of the bacterial communities also diverge between the BS and the RSS compartments, particularly in the extreme and harshest belts of the TLT. Conclusions In this study, we identified taxa of bacterial communities that establish species-specific relationships with native plants and showed that over a gradient of changing abiotic conditions, these relationships may also be plant community specific. These findings also reveal that the interactions among members of the soil microbial communities do not support the stress gradient hypothesis. However, through the RSS compartment, each plant community appears to moderate the abiotic stress gradient and increase the efficiency of the soil microbial community, suggesting that positive interactions may be context dependent.

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Section: Discussionmentioning

confidence: 99%

Testing the stress gradient hypothesis in soil bacterial communities associated with vegetation belts in the Andean Atacama Desert

Mandaković

Aguado-Norese

García-Jiménez

et al. 2023

Environmental Microbiome

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“…The A. halimus was found to adapt physiologically and morphologically to any new conditions of water and salinity conditions (Alam et al, 2022;Kheiria Hcini et al, 2007). Different studies have shown that A. halimus modify its mechanism physiologically and biochemically side by side by modifying the morphological and anatomical features to meet extreme temperatures, salinity, drought and trace elements in soil (Al-Muwayhi, 2020; Alam et al, 2022; Sidhoum et al, 2020; David J. .…”

Section: Literature Reviewmentioning

confidence: 99%

“…Studies published from January 2010 to December 2022. 4. Only English language studies will be used.…”

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confidence: 99%

Atriplex (Atriplex halimus): Distribution, Morphology, Physiological Tolerance to Salinity and Drought: A Review

Gharibeh,

Shiyab,

Saoub

2023

ijmst

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Atriplex halimus is a halophyte plant that is grown in semi-arid and arid regions due to its high capacity to grow in high salinity and drought conditions. The objective of this paper is to review the physiological and morphological changes of A. halimus under different conditions of salinity and drought conditions, as well as compare the different results that are concerned with this plant in the different areas where this plant exists. The result of this review has shown that A. halimus adapt to different saline conditions by creating the balance of the vegetative growth as well as changing the leaves physiology to adapt to the drought conditions by decreasing the water content which Na creates the osmotic adjustment. The A. halimus can reduce/or increase the photosynthesis process depending on the level of drought and salinity conditions. The accumulation of Na increased in the plant as the soil salinity increased. The review has shown that A. halimus increase the uptake of heavy metals if it has high concentrations in soil. The review results show that the different morphological and physiological changes of A. halimus differ from one area to another depending on the drought conditions and soil salinity concentrations. The results showed that A. halimus can be used to rehabilitate deserts that suffer high salinity and drought. Moreover, it can be used to treat the soil contaminated with heavy metals.

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“…Some authors have demonstrated the efficiency of indigenous AMF in improving plant nutrient uptake, particularly for soils affected by salinity [13,23]. However, a better knowledge of the specific relationships between plants and AMF communities is necessary for an adequate use of these telluric micro-organisms in constrained environments, such as saline soils [24].…”

Section: Introductionmentioning

confidence: 99%

Arbuscular Mycorrhizal Fungi Improve Growth and Phosphate Nutrition of Acacia seyal (Delile) under Saline Conditions

Manga

Ndiaye

et al. 2022

Soil Systems

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Many plant species adapted to semi-arid environments are grown in the Sahelian region in northern Africa. One such species is Acacia seyal (Delile), a multipurpose leguminous tree grown in various agroecological zones, including saline soils. These challenging arid and semi-arid environments harbor a diversity of arbuscular mycorrhizal fungi (AMF) communities that can develop symbiotic associations with plants to improve their hydromineral nutrition. This study compared the effects of native AMF communities isolated from semi-arid sites (high, moderate, and low salinity zones Ndiafate, Ngane, and Bambey, respectively) and the AMF Rhizoglomus aggregatum on the development and phosphate nutrition of A. seyal seedlings subject to three salinity treatments (0, 340, and 680 mM). Plant height, dry matter weight of the shoots and roots, and phosphorus uptake from the soil were measured. Plants inoculated with AMF native species from each site that were provided with up to 340 mM of NaCl had greater shoot height than plants grown under 680 mM salinity. At NaCl concentrations above 340 mM, shoot and root development of A. seyal seedlings diminished. However, dry matter production of shoots (7%) and roots (15%) improved following AMF inoculation compared with the control (respectively 0.020 and 0.07 g for shoots and roots). When inoculated with AMF isolates from the high salinity zone (Ndiafate), phosphate content/nutrition was increased by 10% around 30 days after inoculation compared with non-inoculated seedlings (2.84 mg/kg of substrate). These results demonstrate that native AMF inoculants are capable of helping plants withstand environmental constraints, especially those exposing plants to harsh climatic conditions. We discuss insights on how AMF influences the interplay between soil phosphorus and perceived salinity that may have implications for broader relationships between plants and symbiotic fungi.

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Evaluating the resistance mechanism of Atriplex leucoclada (Orache) to salt and water stress; A potential crop for biosaline agriculture

Cited by 15 publications

References 82 publications

Testing the stress gradient hypothesis in soil bacterial communities associated with vegetation belts in the Andean Atacama Desert

Testing the stress gradient hypothesis in soil bacterial communities associated with vegetation belts in the Andean Atacama Desert

Atriplex (Atriplex halimus): Distribution, Morphology, Physiological Tolerance to Salinity and Drought: A Review

Arbuscular Mycorrhizal Fungi Improve Growth and Phosphate Nutrition of Acacia seyal (Delile) under Saline Conditions

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