Hemiparazītisko augu iespējamo saimniekaugu sālsizturības un jonu uzkrāšanās analīze
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Latvijas Universitāte
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lav
Abstract
Pētījumā izvērtēta trīspadsmit potenciālo hemiparazītiskā Rhinanthus major saimniekaugu sālsizturība ar mērķi atlasīt kandidātus turpmākiem parazītisma pētījumiem, kuri saistīti ar augu sālsizturības izmaiņām mijiedarbībā ar hemiparazītu. Eksperimentāli salīdzināta augu augšana, fizioloģiskās reakcijas un jonu uzkrāšanās pēc 100 mM NaCl apstrādes kontrolētos apstākļos. Rezultāti parādīja būtiskas atšķirības starp sugu atbildes reakcijām. Galvenokārt, balstoties uz jonu izmaiņām, sugas varēja iedalīt trīs kategorijās: sāls izturīgās, vidēji izturīgās un jutīgās. Sāls jutīgajā grupā bija novērojama plaša reakciju daudzveidība. Apvienojot eksperimentā iegūtos datus ar R. major potenciālo saimniekaugu kvalitāti (kvalitatīvs, vidējs, nekvalitatīvs), sugas iedalīja četrās grupās.
This study evaluated salt tolerance of thirteen potential host plants of the hemiparasite Rhinanthus major with the aim of selecting candidates for further parasitism research related to the changes of plant salt tolerance when interacting with the hemiparasite. Plant growth, physiological responses, and ion accumulation were experimentally compared after treatment with 100 mM NaCl under controlled conditions. The results showed significant differences between the species' response reactions. Primarily based on ion changes, species could be divided into three categories: salt-tolerant, moderately tolerant, and sensitive. Within the salt-sensitive group, a wide variety of responses were observed. By combining the experimental data with the potential host quality of R. major (high, medium, low quality), the species were divided into four groups.
This study evaluated salt tolerance of thirteen potential host plants of the hemiparasite Rhinanthus major with the aim of selecting candidates for further parasitism research related to the changes of plant salt tolerance when interacting with the hemiparasite. Plant growth, physiological responses, and ion accumulation were experimentally compared after treatment with 100 mM NaCl under controlled conditions. The results showed significant differences between the species' response reactions. Primarily based on ion changes, species could be divided into three categories: salt-tolerant, moderately tolerant, and sensitive. Within the salt-sensitive group, a wide variety of responses were observed. By combining the experimental data with the potential host quality of R. major (high, medium, low quality), the species were divided into four groups.