Cysteine-induced alterations in physicochemical parameters of oat (Avena sativa L. var. Scott and F-411) under drought stress

Shagufta Perveen; Muhammad Iqbal; Muhammad Saeed; Naeem Iqbal; Sara Zafar; Tehmina Mumtaz

doi:10.1556/019.70.2019.03

Biologia Futura

Volume/Issue:: Volume 70: Issue 1

Cysteine-induced alterations in physicochemical parameters of oat (Avena sativa L. var. Scott and F-411) under drought stress

Authors:

Shagufta Perveen

Shagufta Perveen Department of Botany, Government College University, Faisalabad, Pakistan

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Muhammad Iqbal

Muhammad Iqbal Department of Botany, Government College University, Faisalabad, Pakistan

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Muhammad Saeed

Muhammad Saeed Department of Botany, Government College University, Faisalabad, Pakistan

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Naeem Iqbal

Naeem Iqbal Department of Botany, Government College University, Faisalabad, Pakistan

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Sara Zafar

Sara Zafar Department of Botany, Government College University, Faisalabad, Pakistan

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Tehmina Mumtaz

Tehmina Mumtaz Department of Botany, Government College University, Faisalabad, Pakistan

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Pages:: 16–24

Online Publication Date:: 16 Apr 2019

Publication Date:: 01 Mar 2019

Article Category:: Journal Article

DOI:: https://doi.org/10.1556/019.70.2019.03

Keywords:: drought; oat plants; growth; cysteine; glycinebetaine

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Introduction

Drought is one of the major abiotic stresses that drastically reduces crop yield throughout the world. Being precursor of glutathione biosynthesis and involvement in other metabolic processes, cysteine (Cys) has been shown to alter growth and development in plants. In this context, we investigated Cys-induced physicochemical alterations in oat (Avena sativa L. var. Scott and var. F-411) plants under drought stress.

Methods

There were two levels of drought stress, i.e., control (100% field capacity) and drought (50% field capacity) and three levels of foliar application of Cys, i.e., 0, 10, and 20 mM. Experimental design was completely randomized block design.

Results

Drought stress significantly decreased growth parameters, chlorophyll (Chl) contents, while increased leaf membrane permeability (MP), ascorbic acid (AsA), and activity of catalase (CAT) and peroxidase (POD) enzymes. Foliar application of varying Cys levels significantly increased root fresh weight, root length, photosynthetic pigments (chl. a and b), AsA contents in var. Scott, and shoot length, total free amino acids, total phenolics and free proline contents in var. F-411.

Discussion

Of the two oat varieties, var. Scott proved better in root fresh weight, root length, chl. a and b contents, and total phenolic contents, while var. F-411 was higher in the values of shoot length, MP (%), total free amino acids, and free proline contents. Thus, on the basis of strong root system, total phenolics, and more photosynthetic contents (chl. a and b contents), var. Scott could be grown under semi-arid environments than that of var. F-411.

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Biologia Futura

Print ISSN:: 2676-8615

Online ISSN:: 2676-8607

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Biologia Futura
Language	English
Size	A4
Year of Foundation	2019 (1950)
Volumes per Year	1
Issues per Year	4
Founder	Magyar Tudományos Akadémia
Founder's Address	H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	2676-8615 (Print)
ISSN	2676-8607 (Online)