Growth and photosynthetic reactions of different species of wheat seedlings under drought and salt stress

Terletskaya, Nina; Zobova, N. V.; Stupko, V.Yu.; Shuyskaya, E. V.

doi:10.18054/pb.v119i1.4408

Cited by 22 publications

(20 citation statements)

References 20 publications

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“…The concentration of NaCl had a negative effect on the chlorophyll content of wheat [16]). Results of the present study were in line with the findings of Terletskaya et al [17] who reported that the chlorophyll content of T. monococcum, T. polonicum, T. macha, T. aestivum decreased significantly (by 75-84%) under stress conditions. Salama et al [18] reported that high salinity level of (200 Mm NaCl) resulted in the swelling of membranes in chloroplasts of sensitive wheat cultivars while it had little effect in the tolerant ones.…”

Section: Neoxanthine Contents Under Different Concentrations Of Nacl supporting

confidence: 93%

Effect of Salinity on Growth and Some Photosynthetic Pigments of Improved Population in Puccinellia ciliata (Poaceae)

Yavaş

Emek

Ünay

2020

CJAST

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Puccinellia (Puccinellia ciliata Bor.) fairly resistant to salinity and used as forage for livestock in China, Australia, and Turkey. In this study, our objective was to determine the effects of salinity on growth and various photosynthetic pigments of an improved population of Puccinellia via recurrent selection. To accomplish this, effects of salinity on seedlings growth of homogenous Puccinellia was examined, one week after emerging of radicle from seeds. Seeds were germinated on Murashige and Skoog (MS) medium with 6% agar. Seedling growth was studied under different levels of NaCl salinity (0, 10, 20, 30, 40 μS/cm). Salinity applications were carried out for 6 weeks. Cultures were maintained in growth chambers at 24±2ºC and 16/8 light/dark conditions. Germination was scored during 2 weeks after culture initiation. The experiment was performed in a completely randomized design with three replicates. Plant growth parameters such as the number of radicle and tillers, maximum radicle and shoot length, plants fresh and dry weights were investigated. Photosynthetic pigments such as total chlorophyll, chlorophyll a, b, chlorophyll a/b ratio, total carotenoid, β- carotene, lutein and neoxanthin were examined. The maximum values for tiller number per plant, the maximum length of shoot and chlorophyll b were found in the 20 µs/cm, while the maximum length of the radicle was recorded at 10 µs/cm NaCl treatment. It was concluded that low salinity levels (10-20 μS/cm) increased seedling growth, while high salinity levels (30 and 40 μS/cm) inhibited the growth significantly. These results indicate that P. ciliata is a promising salt-tolerant and can be grown productively under low to moderate saline conditions between 10-20 µs/cm.

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Section: Neoxanthine Contents Under Different Concentrations Of Nacl supporting

confidence: 93%

Effect of Salinity on Growth and Some Photosynthetic Pigments of Improved Population in Puccinellia ciliata (Poaceae)

Yavaş

Emek

Ünay

2020

CJAST

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“…Previously obtained data on tetraploid forms anatomy and morphophysiology revealed high adaptability of them, in particular the species T. dicoccum, to drought and salt stress [17,18]. It is obvious that the study of alloplasmic lines derived from inter-species intersections of T. aestivum with drought-tolerant tetraploid species T. dicoccum may have both theoretical and practical interest.…”

Section: Introductionmentioning

confidence: 99%

Drought Stress Tolerance and Photosynthetic Activity of Alloplasmic Lines T. dicoccum x T. aestivum

Terletskaya

Shcherban

Nesterov

et al. 2020

IJMS

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Tetraploid species T. dicoccum Shuebl is a potential source of drought tolerance for cultivated wheat, including common wheat. This paper describes the genotyping of nine stable allolines isolated in the offspring from crossing of T. dicoccum x T. aestivum L. using 21 microsatellite (simple sequence repeats—SSR) markers and two cytoplasmic mitochondrial markers to orf256, rps19-p genes; evaluation of drought tolerance of allolines at different stages of ontogenesis (growth parameters, relative water content, quantum efficiency of Photosystem II, electron transport rate, energy dissipated in Photosystem II); and the study of drought tolerance regulator gene Dreb-1 with allele-specific PCR (AS-MARKER) and partial sequence analysis. Most allolines differ in genomic composition and T. dicoccum introgressions. Four allolines—D-b-05, D-d-05, D-d-05b, and D-41-05—revealed signs of drought tolerance of varying degrees. The more drought tolerant D-41-05 line was also characterized by Dreb-B1 allele introgression from T. dicoccum. A number of non-specific patterns and significant differences in allolines in regulation of physiological parameters in drought conditions is identified. Changes in photosynthetic activity in stress-drought are shown to reflect the level of drought tolerance of the forms studied. The contribution of different combinations of nuclear/cytoplasmic genome and alleles of Dreb-1 gene in allolines to the formation of stress tolerance and photosynthetic activity is discussed.

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“…In general, the reduction in Chl a/b ratio in a given species increases its ability to cope with the stress conditions. 32 Therefore, our results suggest that the S. exigua attack did not cause significant structural changes in the photosynthetic apparatus of tomato, while maize shows a greater adaptability at the beginning of the infestation. Supporting Chl a/b results in our study, carbohydrate content in infested tomato leaves did not decrease significantly under all the studied time periods and in maize, carbohydrate content significantly increased more than control at 2 h and 2 d indicating higher tolerance in maize compared to tomato.…”

Section: Discussionmentioning

confidence: 56%

Jasmonates mediate plant defense responses toSpodoptera exiguaherbivory in tomato and maize foliage

Al-Zahrani

Bafeel

El-Zohri

2020

Plant Signaling & Behavior

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Plants evolve diverse strategies to cope with herbivorous insects, in which the lipid-derived phytohormone jasmonic acid (JA) plays a crucial role. This study was conducted to investigate the differential responses of tomato and maize plants to Spodoptera exiguaherbivory and to clarify the role played by JA, methyl-jasmonate (MeJA) and jasmonoyl-L-isoleucine (JA-L-Ile) in their defense responses. JA, MeJA and JA-L-Ile were quantified using HPLC-MS/MS. The results showed that maize plant was more tolerant toS. exiguaherbivory than tomato. Spodopteraexigua attack induced JA, MeJA, and JA-L-Ile to high levels after 2 h of infestation in both test plants. Then, all studied JAsconcentration decreased gradually by increasing infestation time up to 1 week. JA concentration in infested maize was much higher than that in infested tomato leaves. However, MeJA concentration in infested tomato leaves was higher than that in maize. In control plants, JA was not recorded, while MeJA was recorded in comparable values both in tomato and maize. Our results showed that JA plays the main role in increasing defense responses to S. exigua infestation in the studied plants as a direct signaling molecule; however, MeJA could play an indirect role by inducing JA accumulation. JA-L-Ile indicated a less efficient role in defense responses to S. exigua attack in both test plants where its level is much lower than JA and MeJA.

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Growth and photosynthetic reactions of different species of wheat seedlings under drought and salt stress

Abstract: Background and Purpose: Comprehension of how the different representatives of the tribe

Cited by 22 publications

References 20 publications

Effect of Salinity on Growth and Some Photosynthetic Pigments of Improved Population in Puccinellia ciliata (Poaceae)

Effect of Salinity on Growth and Some Photosynthetic Pigments of Improved Population in Puccinellia ciliata (Poaceae)

Drought Stress Tolerance and Photosynthetic Activity of Alloplasmic Lines T. dicoccum x T. aestivum

Jasmonates mediate plant defense responses toSpodoptera exiguaherbivory in tomato and maize foliage

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