The recalcitrant plant species,Castanospermum australeandTrichilia dregeana, differ in their ability to produce dehydrin-related polypeptides during seed maturation and in response to ABA or water-deficit-related stresses

The genus Fragaria belongs to the Rosaceae family. The most popular representatives of this species are the strawberry (Fragaria × ananassa Duch.) and wild strawberry (Fragaria vesca L.), whose taste and health benefits are appreciated by a huge number of consumers. The cultivation of Fragaria plants is widespread around the world, with particular emphasis on the temperate climate zone. Increasingly occurring weather anomalies, including drought phenomena, cause immense losses in crop cultivation. The Fragaria plant species are very sensitive to drought, due to the shallow root system, large leaf area and the high water content of the fruit. There have been many studies on the influence of water deficit on the morphological, biochemical and physiological features of strawberries and wild strawberries. There is a lack of research summarizing the current state of knowledge regarding of specific species response to water stress. The aim of this study was to combine and compare data from many research carried out and indicate the direction of future research aimed at improving the resistance of Fragaria plants species to stress related to drought. These plants show patterns of response to stress caused by drought, such as: osmotic adjustment, reduction of transpiration and photosynthesis, and increased efficiency of water use. Drought also causes significant changes in the composition and palatability of the fruit of the Fragaria plant species.

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Evidence for water deficit-induced mass increases of raffinose family oligosaccharides (RFOs) in the leaves of three Craterostigma resurrection plant species

Frontiers in Physiology ◽

10.3389/fphys.2015.00206 ◽

2015 ◽

Vol 6 ◽

Cited By ~ 15

Author(s):

Aurélie Egert ◽

Barbara Eicher ◽

Felix Keller ◽

Shaun Peters

Keyword(s):

Water Deficit ◽

Plant Species ◽

Resurrection Plant ◽

Raffinose Family Oligosaccharides

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Evaluating the Drought Endurance of Landscaping Ground Cover Plants in a Roof Top Model

Horticulturae ◽

10.3390/horticulturae7020031 ◽

2021 ◽

Vol 7 (2) ◽

pp. 31

Author(s):

Nath Pichakum ◽

Aussanee Pichakum

Keyword(s):

Quantum Yield ◽

Water Deficit ◽

Plant Species ◽

Ground Cover ◽

Stomatal Opening ◽

Water Withdrawal ◽

Physiological Parameter ◽

Light Quantum ◽

Plant Tolerance ◽

Water Deficits

Vegetative ground covers are commonly used in urban, tropical roadside gardens. Such landscaping ground covers usually encounter extreme water-deficits and high temperatures from vehicles and urban infrastructures. However, information about the plant species that are appropriate for low maintenance gardens is not available, especially in tropical areas. This study aimed to investigate potential indicators for evaluating plant tolerance to water-deficit situations. A non-irrigated rooftop model was used to test 25 commercial ground cover species in a greenhouse at Mahidol University, Nakhon Pathom Province, Thailand. Each of these 25 species was potted and subjected to one of two conditions: with or without irrigation for 7 days. Physiological responses relevant to plant endurance during water-deficits were monitored, including changes in leaf relative water content (RWC), percent stomatal opening, leaf surface temperature, leaf total chlorophyll content, leaf greenness, maximum quantum yield, and light quantum yield. Moreover, an additional indicator of landscape utility was evaluated, where each species was judged by trained panelists for their esthetic appeal. Diverse responses were observed based on the type of physiological parameter measured, plant species, and duration of drought conditions. Water withdrawal for three days was deemed an appropriate time to determine plant tolerance to water-deficit conditions, as signs of stress were clearly observed in three parameters, i.e., changes in leaf RWC, percent stomatal opening, and esthetic score. Lastly, cluster analysis revealed that seven plant species were appropriate for tropical, urban ground covers, as they had high endurance under water-deficit conditions, namely, Allium schoenoprasum,Liriope muscari, Aloe sp., Sedum x rubrotinctum, Alternanthera ficoidea, Pilea libanensis and Plectranthus scutellarioides.

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Accumulation of macronutrients in cowpea and weeds in competition and under soil water deficit

Bioscience Journal ◽

10.14393/bj-v35n6a2019-42432 ◽

2019 ◽

Vol 35 (6) ◽

Author(s):

Fernando Sarmento de Oliveira ◽

Erivanessa Costa Sousa Sarmento ◽

Jeferson Luiz Dallabona Dombroski ◽

Daniel Valadão Silva ◽

Claudia Daianny Melo Freitas ◽

...

Keyword(s):

Soil Water ◽

Water Deficit ◽

Plant Species ◽

Vigna Unguiculata ◽

Block Design ◽

High Potential ◽

Soil Water Deficit ◽

Commelina Benghalensis ◽

Randomized Block Design ◽

Nutrient Extraction

The ability of a plant species to succeed in colonization of agroecosystem depends on its efficiency in the use of growth resources even in deficient conditions. The present study aimed to evaluate the effects of competition and water deficit in the soil on the accumulation of macronutrients of Vigna unguiculata L. Walp., Commelina benghalensis L. and Waltheria indica L. The study was conducted in a greenhouse, in randomized block design, with four replications. The treatments were arranged in a 5 × 2 factorial, with the first factor corresponding to types of interaction among species (V. unguiculata + C. benghalensis; V. unguiculata + W. indica; V. unguiculata in monoculture, C. benghalensis in monoculture and W. indica in monoculture), and the second of water regimes (irrigated and water deficit). The water deficit differently affects macronutrient content on the species, with decreased of K, Ca and Mg in cowpea, and N, P, K and Ca in W. indica. For C. benghalensis, the water deficit does not reduce the macronutrient contents on the plant. The competition between plants intensifies the effects of water deficit only on C. benghalensis, with a decreased on the content of all macronutrients studied. Under irrigated conditions, competition between plants was more damaging the weeds compared to cowpea. The C. benghalensis specie, free from interference, has a high potential for nutrient extraction under irrigated and water deficit regimes.

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The Impact of Water Deficit on The Soybean (Glycine max L.) Reproductive Stage of Development

Legume Research - An International Journal ◽

10.18805/lr-517 ◽

2020 ◽

Author(s):

Z . Miladinov ◽

I. . Maksimovic. ◽

S. Balesevic Tubic ◽

J. . Miladinovic ◽

V. . Djordevic ◽

...

Keyword(s):

Water Deficit ◽

Reproductive Stage ◽

Seed Maturation ◽

Vegetable Crops ◽

Seed Formation ◽

Stage Of Development ◽

Novi Sad ◽

Yield Formation ◽

And Control ◽

The Impact

Experiment was conducted in 2014, 2015 and 2016 at the Institute of Field and Vegetable Crops, Novi Sad, Serbia, to study the effects of water deficit treatments during a soybean reproductive stage. Two water deficit treatments were conducted T1 (from beginning of blossom to seed maturation) and T2 (from beginning of seed filling to seed maturation period) and control (no water deficit). The results showed that water deficit during seed formation has a significant effect on germination energy, germination precentage and abnormal seedling. Obtained results are of great importance for farmers, because under favorable conditions, a large number of abnormal seedling has the ability to sprout, reach the reproductive stage and participate in yield formation.

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Free proline accumulation in leaves of cultivated plant species under water deficit conditions

Acta Agrobotanica ◽

10.5586/aa.2004.006 ◽

2013 ◽

Vol 57 (1-2) ◽

pp. 57-67 ◽

Cited By ~ 3

Author(s):

Hanna Bandurska

Keyword(s):

Amino Acid ◽

Water Deficit ◽

Plant Species ◽

Early Stage ◽

Soil Drought ◽

Wild Form ◽

Free Proline ◽

Proline Level ◽

Barley Leaves ◽

Cultivated Plant

The effect of water deficit caused by soil drought on the content of free proline as well as the degree of cell membrane damages in the leaves of three cultivated plant species having different farm usefulness and water requirements have been studied. The used pIants were: poinsettia (Euphorbia pulcherrima Willd., 'Regina' and 'Cortez') grown for decorative purposes, a green vegetable of broccoli (Brassica oleracea var. botrytis, subvar. cymosa, 'Colonel' and 'Marathon') and a cereal plant of barley (the wild form Hordeum spontaneumm and Hordeum vulgaree 'Maresi'). The examined species differed in the size of the experienced stress. the Iargest RWC reduction was found iii broccoli leaves, while somewhat smaller - in barley. In poinsettia leaves, the reduction of RWC level was not large or did not occur at all. The accumulation of free proline in the species under study was also variable. The largest amount of this amino acid tended to accumulate in broccoli leaves, whereas the increase of its level took place only at a strong dehydration of tissues. The increase of proline level was smaller in barley leaves than in broccoli, but that was found already at a smalI dehydration of tissues. In poinsettia leaves, a several f`old increase of proline level was found at the early stage of the stress. The level of that amino acid gradually increased at consecutive times and did not depend on tissue dehydration. Damage of cell membranes amounted to 8.5-9.5% in barley leaves, about 3% in brocolli and to 0-2.6% in poinsettia. The role of proline in prevention of leaf dehydration and in alleviation of dehydration effects in the studied species has been discussed.

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