What is the Difference between the Response of Grass Pea (Lathyrus sativus L.) to Salinity and Drought Stress?—A Physiological Study

Barbara Tokarz , Tomasz Wójtowicz , Wojciech Makowski , Roman Jędrzejczyk , Krzysztof Tokarz

Abstract

Understanding the mechanisms of plant tolerance to osmotic and chemical stress is fundamental to maintaining high crop productivity. Soil drought often occurs in combination with physiological drought, which causes chemical stress due to high concentrations of ions. Hence, it is often assumed that the acclimatization of plants to salinity and drought follows the same mechanisms. Grass pea (Lathyrus sativus L.) is a legume plant with extraordinary tolerance to severe drought and moderate salinity. The aim of the presented study was to compare acclimatization strategies of grass pea seedlings to osmotic (PEG) and chemical (NaCl) stress on a physiological level. Concentrations of NaCl and PEG were adjusted to create an osmotic potential of a medium at the level of 0.0, −0.45 and −0.65 MPa. The seedlings on the media with PEG were much smaller than those growing in the presence of NaCl, but had a significantly higher content percentage of dry weight. Moreover, the stressors triggered different accumulation patterns of phenolic compounds, soluble and insoluble sugars, proline and β-N-oxalyl-L-α,β-diamino propionic acid, as well as peroxidase and catalase activity. Our results showed that drought stress induced a resistance mechanism consisting of growth rate limitation in favor of osmotic adjustment, while salinity stress induced primarily the mechanisms of efficient compartmentation of harmful ions in the roots and shoots. Furthermore, our results indicated that grass pea plants differed in their response to drought and salinity from the very beginning of stress occurrence.
Autor Barbara Tokarz (BiO / Katedra Botaniki, Fizjologii i Ochrony Roślin)
Barbara Tokarz
- Katedra Botaniki, Fizjologii i Ochrony Roślin
, Tomasz Wójtowicz (RE / KFHRiN)
Tomasz Wójtowicz
- Katedra Fizjologii Hodowli Roślin i Nasiennictwa
, Wojciech Makowski (BiO / Katedra Botaniki, Fizjologii i Ochrony Roślin)
Wojciech Makowski
- Katedra Botaniki, Fizjologii i Ochrony Roślin
, Roman Jędrzejczyk - Uniwersytet Jagielloński w Krakowie (UJ)
Roman Jędrzejczyk
-
, Krzysztof Tokarz (BiO / Katedra Botaniki, Fizjologii i Ochrony Roślin)
Krzysztof Tokarz
- Katedra Botaniki, Fizjologii i Ochrony Roślin
Tytuł czasopisma/seriiAgronomy, [Agronomy], ISSN 2073-4395, e-ISSN 2073-4395, (N/A 100 pkt)
Rok wydania2020
Tom10
Nr833
Paginacja1-24
Objętość publikacji w arkuszach wydawniczych1.15
Słowa kluczowe w języku angielskimAbiotic stress; antioxidants; grass pea; NaCl; ODAP; osmotic potential; PEG
Klasyfikacja ASJC1102 Agronomy and Crop Science
DOIDOI:10.3390/agronomy10060833
URL https://www.mdpi.com/2073-4395/10/6/833/pdf
Języken angielski
LicencjaCzasopismo (tylko dla artykułów); autorska oryginalna; Uznanie Autorstwa (CC-BY); po opublikowaniu
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What is the Difference between the Response of Grass Pea (Lathyrus sativus L.) to Salinity and Drought Stress?—A Physiological Study z dnia 15-06-2020
1,92 MB
Punktacja (całkowita)100
Żródło punktacjijournalList
Wskaźniki publikacji Cytowania WoS = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.272; Impact Factor WoS: 2018 = 2.259 (2)
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FinansowanieThe research was supported by a subsidy (SUB/2019-0511000000-D507) of the Ministry of Science and Higher Education of the Republic of Poland aimed at maintenance and development of research potential of the Department of Botany, Physiology and Plant Protection
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* Podana liczba cytowań wynika z analizy informacji dostępnych w Internecie i jest zbliżona do wartości obliczanej przy pomocy systemu Publish or Perish.
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