Responses of Different Panicum miliaceum L. Genotypes to Saline and Water Stress in a Marginal Mediterranean Environment

Caruso, Caterina; Maucieri, Carmelo; Berruti, Andrea; Borin, Maurizio; Barbera, Antonio C.

doi:10.3390/agronomy8010008

Cited by 18 publications

(15 citation statements)

References 52 publications

(51 reference statements)

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“…Given that the ecological niche of AMF is in the root and rhizosphere, we hypothesized that the main effects of AM symbiosis is on the roots rather than leaves. AM symbiosis improved the absorption of nutrients, which made AMF an essential tool for plants exposed to abiotic stress [16]. Our research showed that the enhanced nutrient absorption observed with AMF inoculation was manifested in the N, P and K contents.…”

Section: Plos Onementioning

confidence: 58%

“…Among soil microorganisms, arbuscular mycorrhizal fungi (AMF) have symbiotic relationships with most terrestrial plant species [14]. Previous studies have indicated that AMF can confer salt tolerance to host plants by stimulating enzyme activity protection systems, increasing photosynthesis capacity and enhancing nutrients uptake [15][16]. However, not all AMF species function equally well in improving the salt tolerance of host plants.…”

Section: Introductionmentioning

confidence: 99%

“…Some researchers have reported that Funneliformis mosseae was the most efficient fungus for tackling salt stress [17], while others showed that for Acacia nilotica, herbs, woody and perennial plants, G. fasciculatus was a better choice for reducing the negative effects of salt stress [18]. The inconsistent effects of AMF inoculation could result from the salt tolerance of either the fungal species or host species [16].…”

Section: Introductionmentioning

confidence: 99%

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Arbuscular mycorrhizal fungi (AMF) enhance the tolerance of Euonymus maackii Rupr. at a moderate level of salinity

Meng

et al. 2020

PLoS ONE

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Salt stress is one of the major environmental constraints for plant growth. Although the ways in which mycorrhizal plants deal with salt stress have been well documented, it still is blank for Euonymus maackii, an important local ecological restoration tree, to arbuscular mycorrhizal fungi (AMF) inoculation and salt stress. In this study, we tested the effect of different salt levels (0, 50, 100,150 and 200 mM) and AMF inoculation on E. maackii growth rate, photosynthesis, antioxidant enzymes, nutrient absorption and salt ion distribution. The results indicated negative effect of salt on height, photosynthesis capacity, nutrition accumulation, while salt stimulated the antioxidant defense system and salt ions accumulation. The toxic symptom by excessive accumulation of salt ions worsen with salt level increased gradually (except for the 50 mM NaCl treatment). AMF inoculation alleviated the toxic symptom under moderate salt levels (100 and 150 mM) by increasing photosynthesis capacity, accelerating nutrient absorption and activating antioxidant enzyme activities under salt stress. Meanwhile, effect of AMF was not detected on seedlings under slight (0 and 50 mM) and high (200 mM) NaCl concentration. Our study indicated AMF had positive impact on E. maackii subjected to salt, which suggested potential application of AMF-E. maackii on restoration of salt ecosystems.

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Section: Plos Onementioning

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Arbuscular mycorrhizal fungi (AMF) enhance the tolerance of Euonymus maackii Rupr. at a moderate level of salinity

Meng

et al. 2020

PLoS ONE

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“…to name a few, finally received the research attention that they deserve in the last couple of years due mainly to their hardiness, versatility, and exquisite nutritional benefits [1,92,95,96]. These underutilized crops were a staple in their native homes for hundreds of years, and they possess some degree of tolerance to certain stresses, as shown in Table 2 [97][98][99][100][101][102][103][104]. An evidential example of their superior genes of nutrional importance is the development of protato (protein-rich potato) that was engineered to express the AmA1 albumin protein of Amaranthus hypochondriacus [105].…”

Section: Asr1mentioning

confidence: 99%

The 21st Century Agriculture: When Rice Research Draws Attention to Climate Variability and How Weedy Rice and Underutilized Grains Come in Handy

Hanafiah

Mispan

Lim

et al. 2020

Plants

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Rice, the first crop to be fully sequenced and annotated in the mid-2000s, is an excellent model species for crop research due mainly to its relatively small genome and rich genetic diversity. The 130-million-year-old cereal came into the limelight in the 1960s when the semi-dwarfing gene sd-1, better known as the "green revolution" gene, resulted in the establishment of a high-yielding semi-dwarf variety IR8. Deemed as the miracle rice, IR8 saved millions of lives and revolutionized irrigated rice farming particularly in the tropics. The technology, however, spurred some unintended negative consequences, especially in prompting ubiquitous monoculture systems that increase agricultural vulnerability to extreme weather events and climate variability. One feasible way to incorporate resilience in modern rice varieties with narrow genetic backgrounds is by introgressing alleles from the germplasm of its weedy and wild relatives, or perhaps from the suitable underutilized species that harbor novel genes responsive to various biotic and abiotic stresses. This review reminisces the fascinating half-century journey of rice research and highlights the potential utilization of weedy rice and underutilized grains in modern breeding programs. Other possible alternatives to improve the sustainability of crop production systems in a changing climate are also discussed.

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“…Brackish water irrigation with high salinity and excess salt in the soil not only inhibits the emergence of crops in the seeding stage [20] but also decreases the water uptake by crops during the growing seasons and disrupts the ion balance, leading to toxicity [21]. The negative effects of soil salinity on crops can be alleviated by selecting suitable crops as salt-tolerant varieties, adjusting the irrigation regime of brackish water reasonably, and adopting agronomy, hydraulic and other measures to adjust the transport and distribution of salt in cultivated soil layers [22,23]. Huang et al [11] demonstrated that the impact of brackish water irrigation on soil salinity and crop yield can be minimized by using brackish water for irrigation in the later period of maize growth rather than at the germination or early seeding stage.…”

Section: Introductionmentioning

confidence: 99%

Soil Water-Salt Dynamics and Maize Growth as Affected by Cutting Length of Topsoil Incorporation Straw under Brackish Water Irrigation

Zhang

et al. 2020

Agronomy

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Brackish water has been utilized extensively in agriculture around the world to cope with the global water deficit, but soil salt accumulation caused by brackish water irrigation cannot be ignored. Straw incorporation has been confirmed an effective sustainable means to inhibit soil salt accumulation. An experiment was conducted in growth tanks over two consecutive growing seasons to investigate the effects of wheat straw incorporation on soil moisture and salinity under brackish water irrigation (5g NaCl L−1). Furthermore, the trial investigated the effects of three wheat straw cutting lengths (CK = 0 cm; L1 = 5 cm, L2 = 10 cm, and L3 = 20 cm) on soil water-salt dynamics and summer maize growth. The results showed that soil properties and maize yields were favorably and significantly affected by the shorter straw segments incorporated into the cultivated field (p < 0.05), as indicated in the decrease in soil bulk density (7.47%–7.79%) and the rise of soil organic matter (SOM) content (2.4–4.5g kg−1) and soil total porosity (4.34%–4.72%) under treatment L1. Meanwhile, treatment L1 produced the greatest dry above-ground biomass (14447 ± 571 kg ha−1), 100-grain weight (34.52 ± 1.20 g) and grain yield (7251 ± 204 kg ha−1) of summer maize. Soil water content in the cultivated layer increased 4.79%–25.44%, and the soil salt accumulation rate decreased significantly due to the straw incorporation and the highest value of soil moisture content (19.10%–21.84%), as well as the lowest value of soil salt accumulation rates (2.12–9.06) obtained at treatment L1. Straw incorporation with cutting length in 5 cm is the optimal choice for alleviating the adverse effects due to brackish water irrigation and improving soil properties, which could be helpful for agricultural mechanization and straw field-returning practices.

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Responses of Different Panicum miliaceum L. Genotypes to Saline and Water Stress in a Marginal Mediterranean Environment

Cited by 18 publications

References 52 publications

Arbuscular mycorrhizal fungi (AMF) enhance the tolerance of Euonymus maackii Rupr. at a moderate level of salinity

Arbuscular mycorrhizal fungi (AMF) enhance the tolerance of Euonymus maackii Rupr. at a moderate level of salinity

The 21st Century Agriculture: When Rice Research Draws Attention to Climate Variability and How Weedy Rice and Underutilized Grains Come in Handy

Soil Water-Salt Dynamics and Maize Growth as Affected by Cutting Length of Topsoil Incorporation Straw under Brackish Water Irrigation

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