Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Uncovering of Some Citrus Rootstocks to Salt Stress Tolerance In Vitro Screening

Version 1 : Received: 18 July 2023 / Approved: 18 July 2023 / Online: 19 July 2023 (02:54:35 CEST)

How to cite: Al-Saif, A.M.; Abdrabboh, G.A.; Abdel-Aziz, H.F.; Abd, A.; Elnaggar, I.A.; Abd El-wahed, A.E.N.; Sharaf, A.; Hamdy, A.E. Uncovering of Some Citrus Rootstocks to Salt Stress Tolerance In Vitro Screening. Preprints 2023, 2023071216. https://doi.org/10.20944/preprints202307.1216.v1 Al-Saif, A.M.; Abdrabboh, G.A.; Abdel-Aziz, H.F.; Abd, A.; Elnaggar, I.A.; Abd El-wahed, A.E.N.; Sharaf, A.; Hamdy, A.E. Uncovering of Some Citrus Rootstocks to Salt Stress Tolerance In Vitro Screening. Preprints 2023, 2023071216. https://doi.org/10.20944/preprints202307.1216.v1

Abstract

Salinity is the most significant abiotic stress affecting crop yield worldwide, breeders are Salinity is the most important abiotic stress limiting crop production throughout the world, and breeders are encouraged to test novel genotypes for their resistance to this selection agent. However, getting a sufficient number of plants for the evaluation can be a lengthy and time-consuming procedure that might be shortened by applying in vitro techniques. An experiment was conducted under controlled saline circumstances using a tissue culture technique to investigate the influence of salt on several physic-biochemical parameters. Micro-shoots of Volkamariana lemon, sour orange, trifoliate orange, and Cleopatra mandarin rootstocks were re-cultured on MS media supplemented with NaCl from 25, up to 150 mM. Following the experiments, all of the tested rootstocks' morphological and biochemical characteristics, stomata behavior, and element accumulation were measured. As a result, adding NaCl from 25 to 150 mM to MS media caused a reduction in all morphogenetic parameters such as shoot number, shoot length, leaves number, and survival percentage was measured compared with control. Photosynthesis pigment, RWC, K, and Ca ions were decreased by increasing NaCl from 100 to 150 mM. On the contrary, proline, Cl, and Na were increased. Cleopatra mandarin and Trifoliate orange are more tolerant to salt stress than Volkamariana lemon and sour orange citrus.

Keywords

Citrus rootstocks; tissue culture; biotechnology; NaCl; EDX; Stomata

Subject

Biology and Life Sciences, Agricultural Science and Agronomy

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