Root and shoot variation in relation to potential intermittent drought adaptation of Mesoamerican wild common bean (Phaseolus vulgaris L.)

Abstract Background Wild crop relatives have been potentially subjected to stresses on an evolutionary time scale prior to domestication. Among these stresses, drought is one of the main factors limiting crop productivity and its impact is likely to increase under current scenarios of global climate change. We sought to determine to what extent wild common bean (Phaseolus vulgaris) exhibited adaptation to drought stress, whether this potential adaptation is dependent on the climatic conditions of the location of origin of individual populations, and to what extent domesticated common bean reflects potential drought adaptation. Methods An extensive and diverse set of wild beans from across Mesoamerica, along with a set of reference Mesoamerican domesticated cultivars, were evaluated for root and shoot traits related to drought adaptation. A water deficit experiment was conducted by growing each genotype in a long transparent tube in greenhouse conditions so that root growth, in addition to shoot growth, could be monitored. Results Phenotypic and landscape genomic analyses, based on single-nucleotide polymorphisms, suggested that beans originating from central and north-west Mexico and Oaxaca, in the driest parts of their distribution, produced more biomass and were deeper-rooted. Nevertheless, deeper rooting was correlated with less root biomass production relative to total biomass. Compared with wild types, domesticated types showed a stronger reduction and delay in growth and development in response to drought stress. Specific genomic regions were associated with root depth, biomass productivity and drought response, some of which showed signals of selection and were previously related to productivity and drought tolerance. Conclusions The drought tolerance of wild beans consists in its stronger ability, compared with domesticated types, to continue growth in spite of water-limited conditions. This study is the first to relate bean response to drought to environment of origin for a diverse selection of wild beans. It provides information that needs to be corroborated in crosses between wild and domesticated beans to make it applicable to breeding programmes.

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Comparative analysis of drought responses in Phaseolus vulgaris (common bean) and P. coccineus (runner bean) cultivars

The EuroBiotech Journal ◽

10.24190/issn2564-615x/2017/03.09 ◽

2017 ◽

Vol 1 (3) ◽

pp. 247-252 ◽

Cited By ~ 5

Author(s):

Mihaela Morosan ◽

Mohamad Al Hassan ◽

Miguel A. Naranjo ◽

María P. López-Gresa ◽

Monica Boscaiu ◽

...

Keyword(s):

Phaseolus Vulgaris ◽

Drought Tolerance ◽

Common Bean ◽

Food Production ◽

Global Climate ◽

Runner Bean ◽

Bean Plants ◽

Breeding Programmes ◽

Reliable Marker ◽

Agricultural Yields

Abstract Genetic improvement of crop drought tolerance has become an urgent need for increasing agricultural yields and food production, to feed a growing human population in the context of global climate change. To get insights into the most relevant mechanisms underlying drought resistance in beans, we have analysed the responses to water deficit of three Phaseolus vulgaris (common bean) and one P. coccineus (runner bean) cultivars, focusing on the accumulation of specific osmolytes, a conserved response to abiotic stress in plants. Changes in osmolyte levels were correlated with the relative tolerance to water stress of the studied cultivars. Drought tolerance in Phaseolus largely depends on the accumulation of myo-inositol; glycine betaine may also contribute to tolerance in P. coccineus (but not in P. vulgaris). Proline, another common osmolyte, is a reliable marker of the level of stress affecting bean plants, but is not directly involved in tolerance mechanisms, as its drought-dependent accumulation is lowest in the most tolerant cultivar. We suggest that, by measuring the levels of proline and myo-inositol in water-stressed plants, a large number of cultivars could be easily and rapidly screened to select promising candidates to be used in breeding programmes for improving drought tolerance in beans.

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Chloroplast proteins involved in drought stress response in selected cultivars of common bean (Phaseolus vulgaris L.)

3 Biotech ◽

10.1007/s13205-019-1862-x ◽

2019 ◽

Vol 9 (9) ◽

Author(s):

Tanja Zadražnik ◽

Anders Moen ◽

Jelka Šuštar-Vozlič

Keyword(s):

Drought Stress ◽

Stress Response ◽

Phaseolus Vulgaris ◽

Common Bean ◽

Phaseolus Vulgaris L ◽

Chloroplast Proteins

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Evaluation of common bean ( Phaseolus vulgaris L.) genotypes for drought stress adaptation in Ethiopia

The Crop Journal ◽

10.1016/j.cj.2016.06.007 ◽

2016 ◽

Vol 4 (5) ◽

pp. 367-376 ◽

Cited By ~ 34

Author(s):

Kwabena Darkwa ◽

Daniel Ambachew ◽

Hussein Mohammed ◽

Asrat Asfaw ◽

Matthew W. Blair

Keyword(s):

Drought Stress ◽

Phaseolus Vulgaris ◽

Common Bean ◽

Stress Adaptation ◽

Phaseolus Vulgaris L

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Seed Priming: A Feasible Strategy to Enhance Drought Tolerance in Crop Plants

International Journal of Molecular Sciences ◽

10.3390/ijms21218258 ◽

2020 ◽

Vol 21 (21) ◽

pp. 8258 ◽

Cited By ~ 1

Author(s):

Vishvanathan Marthandan ◽

Rathnavel Geetha ◽

Karunanandham Kumutha ◽

Vellaichamy Gandhimeyyan Renganathan ◽

Adhimoolam Karthikeyan ◽

...

Keyword(s):

Drought Stress ◽

Seed Germination ◽

Drought Tolerance ◽

Defense Mechanism ◽

Seed Priming ◽

Crop Productivity ◽

Crop Plants ◽

Complex Nature ◽

Efficient Manner ◽

Farming Community

Drought is a serious threat to the farming community, biasing the crop productivity in arid and semi-arid regions of the world. Drought adversely affects seed germination, plant growth, and development via non-normal physiological processes. Plants generally acclimatize to drought stress through various tolerance mechanisms, but the changes in global climate and modern agricultural systems have further worsened the crop productivity. In order to increase the production and productivity, several strategies such as the breeding of tolerant varieties and exogenous application of growth regulators, osmoprotectants, and plant mineral nutrients are followed to mitigate the effects of drought stress. Nevertheless, the complex nature of drought stress makes these strategies ineffective in benefiting the farming community. Seed priming is an alternative, low-cost, and feasible technique, which can improve drought stress tolerance through enhanced and advanced seed germination. Primed seeds can retain the memory of previous stress and enable protection against oxidative stress through earlier activation of the cellular defense mechanism, reduced imbibition time, upsurge of germination promoters, and osmotic regulation. However, a better understanding of the metabolic events during the priming treatment is needed to use this technology in a more efficient way. Interestingly, the review highlights the morphological, physiological, biochemical, and molecular responses of seed priming for enhancing the drought tolerance in crop plants. Furthermore, the challenges and opportunities associated with various priming methods are also addressed side-by-side to enable the use of this simple and cost-efficient technique in a more efficient manner.

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Differential proteomic analysis of drought stress response in leaves of common bean (Phaseolus vulgaris L.)

Journal of Proteomics ◽

10.1016/j.jprot.2012.09.021 ◽

2013 ◽

Vol 78 ◽

pp. 254-272 ◽

Cited By ~ 91

Author(s):

Tanja Zadražnik ◽

Kristin Hollung ◽

Wolfgang Egge-Jacobsen ◽

Vladimir Meglič ◽

Jelka Šuštar-Vozlič

Keyword(s):

Drought Stress ◽

Stress Response ◽

Phaseolus Vulgaris ◽

Common Bean ◽

Proteomic Analysis ◽

Phaseolus Vulgaris L

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Participatory approach in common bean (Phaseolus vulgaris L.) breeding for drought tolerance for southern Ethiopia

Plant Breeding ◽

10.1111/j.1439-0523.2011.01921.x ◽

2011 ◽

Vol 131 (1) ◽

pp. 125-134 ◽

Cited By ~ 30

Author(s):

Asrat Asfaw ◽

Conny J. M. Almekinders ◽

Matthew W. Blair ◽

Paul C. Struik

Keyword(s):

Phaseolus Vulgaris ◽

Drought Tolerance ◽

Common Bean ◽

Participatory Approach ◽

Southern Ethiopia ◽

Phaseolus Vulgaris L

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Biochemical indicators of drought tolerance in the common bean (Phaseolus vulgaris L.)

Euphytica ◽

10.1007/s10681-016-1720-4 ◽

2016 ◽

Vol 210 (2) ◽

pp. 277-289 ◽

Cited By ~ 17

Author(s):

Estela R. Andrade ◽

Vinícius N. Ribeiro ◽

Cleber V. G. Azevedo ◽

Alisson F. Chiorato ◽

Thomas C. R. Williams ◽

...

Keyword(s):

Phaseolus Vulgaris ◽

Drought Tolerance ◽

Common Bean ◽

Phaseolus Vulgaris L ◽

Biochemical Indicators ◽

The Common

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Drought Effects on Growth, Water Content, and Organic Osmoprotectants in Promising Almond Genotypes with Different Drought Tolerance

10.21203/rs.3.rs-206134/v1 ◽

2021 ◽

Author(s):

Shabnam Gohari ◽

Ali Imani ◽

AliReza Talaei ◽

Vahid Abdossi ◽

Mohamad Reza Asghari

Keyword(s):

Drought Stress ◽

Drought Tolerance ◽

Water Content ◽

Light Stress ◽

Stress Conditions ◽

Growth And Yield ◽

Leaf Water Content ◽

Severe Stress ◽

Drought Adaptation ◽

Genotype A

Abstract Background Almonds ( Prunus amygdalus Batsch, syn. P. dulcis (Mill.) DA Webb) is a valuable nut crops species that is widely is cultivated in arid and semi-arid regions of Iran, due to drought tolerance and dehydration under drought stress. Almonds show physiological adaptations for survival in drought stress conditions, but the degree Drought adaptation varies between cultivars. However, to date, its morphological and physiological responses to drought, and the underlying mechanisms are not well understood. This study was aimed to investigate the morphological and physiological changes of almond genotypes under drought stress. almond genotypes were planted in pots and subjected to four levels of soil water treatments: above 80% (control), 60% (light stress), and 40% (severe stress) of field capacity. Results Within the total stress period (0–30 days), almond genotypes grew rapidly in the light stress, whereas severe stress had a negative impact on growth. So that, in this study, 10 selected almond genotypes using some morphological traits such as: plant height, trunk diameter at the top of the graft, new branch growth length, leaf yellowness and some physiological indicators under drought stress conditions such as Chlorophyll index was evaluated based on SPAD criterion, relative leaf water content, measurement of chlorophyll fluorescence and Organic Osmoprotectants to identify drought-resistant and sensitive genotypes under drought stress conditions. Among the selected genotypes studied, genotype A-7-100 was the most resistant and genotype A-124-1 was the most sensitive to drought stress. Conclusions Our results show that almond genotypes adapt to drought mainly by avoidance mechanisms, and its morphological and physiological characteristics are inhibited under severe stress, However, the degree of drought adaptation varies between different cultivars. These findings might help limited water resources to be fully used for increased the percentage of kernel and finally increased the growth and yield of plants under water stress.

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Improvement of drought tolerance in rice using line X tester mating design and biochemical molecular markers

Bulletin of the National Research Centre ◽

10.1186/s42269-021-00656-1 ◽

2022 ◽

Vol 46 (1) ◽

Author(s):

Almoataz Bellah Ali El-Mouhamady ◽

Abdul Aziz M. Gad ◽

Ghada S. A. Abdel Karim

Keyword(s):

Water Stress ◽

Drought Stress ◽

Drought Tolerance ◽

Stress Tolerance ◽

Water Deficit ◽

Scientific Progress ◽

Crop Productivity ◽

Hybrid Generation ◽

Water Stress Tolerance ◽

Rice Genotypes

Abstract Background Water stress, specifically the limited water resources needed to grow strategic crops, especially rice, poses a great threat to crop productivity. So, it was imperative that scientists all work together to try genetically improving the rice for drought tolerance in light of these environmental challenges. The aim of this study is trying to know the genetic behavior responsible for water-deficit tolerance in rice genotypes but at the molecular level. Moreover, this attempt will be an important leap in the process of genetic improvement in rice for water stress tolerance in Egypt. Results Twenty-three rice genotypes including eight parents and their fifteen F1 crosses or (the first hybrid generation) by line X tester analysis were evaluated for water stress tolerance during two experiments (the control and drought experiment) besides some molecular–biochemical studies for eight parents and the highest selected five crosses for water stress tolerance. The research revealed that five rice crosses out of fifteen hybrids were highly tolerant to water stress compared to the normal conditions. Data of biochemical markers indicated the presence of bands that are considered as molecular genetic markers for water-deficit tolerance in some rice genotypes, and this is the scientific progress achieved in this research. This was evident by increasing the density and concentration of SDS-protein electrophoresis besides enhancing the activities of peroxidase (POD) and polyphenol oxidase (PPO) under water-deficit conditions, which confirmed the tolerance of drought stress in the eight rice genotypes and the best five crosses from the first hybrid generation. Conclusion The five promising and superior rice hybrids showed an unparalleled tolerance to water stress in all evaluated traits under water stress treatment compared to the standard experiment. Also, biochemical and molecular parameters evidence confirmed the existence of unquestionable evidence that it represents the main nucleus for producing rice lines tolerated for drought stress under Egyptian conditions.

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