Physiological and Molecular Aspects of Tolerance to Environmental Constraints in Grain and Forage Legumes

Bargaz, Adnane; Zaman-Allah, Mainassara; Farissi, Mohamed; Lazali, Mohamed; Drevon, Jean‐Jacques; Maougal, Rim; Carlsson, Georg

doi:10.3390/ijms160818976

Cited by 45 publications

(41 citation statements)

References 245 publications

(304 reference statements)

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“…Indeed, under salty conditions, sustaining ion homeostasis is one of the adaptive strategies that tolerant plants use to cope with salt stress. These strategies may help the plant to prevent potentially toxic effects of the build-up of ions like Na + and Cl − that cause various types of damage to lipids, proteins and nucleic acids (Zhu and Gong, 2014;Bargaz et al, 2015;Rizwan et al, 2015). Application of 5 mM proline in a foliar spray decreased Na + content and increased K + /Na + ratio in P. vulgaris (Abdelhamid et al, 2013).…”

Section: Proline Treatment Mediates Reduction In Ion Toxicity Due To mentioning

confidence: 99%

How Does Proline Treatment Promote Salt Stress Tolerance During Crop Plant Development?

et al. 2020

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Soil salinity is one of the major abiotic stresses restricting the use of land for agriculture because it limits the growth and development of most crop plants. Improving productivity under these physiologically stressful conditions is a major scientific challenge because salinity has different effects at different developmental stages in different crops. When supplied exogenously, proline has improved salt stress tolerance in various plant species. Under high-salt conditions, proline application enhances plant growth with increases in seed germination, biomass, photosynthesis, gas exchange, and grain yield. These positive effects are mainly driven by better nutrient acquisition, water uptake, and biological nitrogen fixation. Exogenous proline also alleviates salt stress by improving antioxidant activities and reducing Na + and Cl − uptake and translocation while enhancing K + assimilation by plants. However, which of these mechanisms operate at any one time varies according to the proline concentration, how it is applied, the plant species, and the specific stress conditions as well as the developmental stage. To position salt stress tolerance studies in the context of a crop plant growing in the field, here we discuss the beneficial effects of exogenous proline on plants exposed to salt stress through wellknown and more recently described examples in more than twenty crop species in order to appreciate both the diversity and commonality of the responses. Proposed mechanisms by which exogenous proline mitigates the detrimental effects of salt stress during crop plant growth are thus highlighted and critically assessed.

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Section: Proline Treatment Mediates Reduction In Ion Toxicity Due To mentioning

confidence: 99%

How Does Proline Treatment Promote Salt Stress Tolerance During Crop Plant Development?

et al. 2020

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“…A more comprehensive approach was initiated by Subbarao et al [11] who found that consideration of individual morphological characteristics or physiological processes is not able to improve yield in new varieties of pulse crops in soil drought conditions. Bargaz et al [12] report that visible progress in adaptation of pulse plants to limited drought stress involves multigene-controlled traits. Due to the growing trend in Europe towards promotion of pulse crops in sustainable agriculture, different methods of raising the tolerance of plants to drought stress, not necessarily leading to genomic changes, are continually sought [13].…”

Section: Digital Signaturementioning

confidence: 99%

Development and production response of edible and forage varieties of pea (Pisum sativum L.) to temporary soil drought under different levels of phosphorus application

Klimek-Kopyra¹,

Skowera²,

Zając³

et al. 2016

Acta Agrobot

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The change in weather conditions in Central Europe has led to the need to review current standards for fertilization of pulse crops. Physiologists claim that phosphorus may play a significant role in raising tolerance to a temporary lack of water in the soil. The objective of the 2-year field study (2011)(2012) was to assess the effect of phosphorus application on characteristics of the aerial and underground plant parts of different varieties of pea and elements of their yield structure. The study showed that a higher phosphorus application rate led to significant intensification of photosynthesis and thus to more rapid vegetative development in the plants, manifested as a greater number of leaves and greater leaf area. The higher rate of phosphorus application significantly influenced the flowering process of pea during soil drought. The number of flowering nodes increased significantly as phosphorus application increased. The plants fertilized with the higher level of phosphorus produced a greater weight of root nodules with more Rhizobium bacterial colonies. Increased phosphorus fertilization had a significant role during the year of permanent semi-drought, 2012, resulting in a significantly greater number and weight of pods as well as a greater number and weight of seeds per plant, and thus a larger final yield.

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“…The lack of significant response in R d with additional N but without additional phosphorus (P) suggests the co-limitation of N and P in controlling R d (van De Weg et al 2013;Heskel et al 2014). The warming-induced decline in available P in grassland ecosystem (Geng et al 2017) thus, might explain the higher relative N reduction in IB than other species since legumes are sensitive to P deficiency (Bargaz et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Thermal acclimation of leaf respiration varies between legume and non-legume herbaceous

Peng

Jung

Jiang

et al. 2018

Journal of Plant Ecology

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Aims Ubiquitous thermal acclimation of leaf respiration could mitigate the respiration increase. However, whether species of different plant functional groups showing distinct or similar acclimation justifies the simple prediction of respiratory carbon (C) loss to a warming climate. Methods In this study, leaf dark respiration (R d) of illinois bundleflower (IB, legume), stiff goldenrod (GR, C 3 forbs), indian grass, little bluestem and king ranch bluestem (IG, LB and KB, C 4 grass) were measured with detached leaves sampled in a 17-year warming experiment. Important Findings The results showed that R d at 20°C and 22°C (R 20 and R 22) were significantly lower in the warming treatment for all the five species. Lower R 22 in warmed than R 20 in control in GR, KB, LB and IG imply acclimation homeostasis, but not in IB. The significant decline in temperature sensitivity of respiration (Q 10) of GR resulted in the marginal reduction of Q 10 across species. No significant changes in Q 10 of C 4 grasses suggest different acclimation types for C 3 forbs and C 4 grass. The magnitude of acclimation positively correlated with leaf C/N. Our results suggest that non-legume species had a relative high acclimation, although the acclimation type was different between C 3 forbs and C 4 grasses, and the legume species displayed no acclimation in R d. Thus, the plant functional types should be taken into account in the grassland ecosystem C models.

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Physiological and Molecular Aspects of Tolerance to Environmental Constraints in Grain and Forage Legumes

Cited by 45 publications

References 245 publications

How Does Proline Treatment Promote Salt Stress Tolerance During Crop Plant Development?

How Does Proline Treatment Promote Salt Stress Tolerance During Crop Plant Development?

Development and production response of edible and forage varieties of pea (Pisum sativum L.) to temporary soil drought under different levels of phosphorus application

Thermal acclimation of leaf respiration varies between legume and non-legume herbaceous

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