Salt tolerance in wild relatives of adzuki bean, Vigna angularis (Willd.) Ohwi et Ohashi
Autor: | Yutaro Yoshida, Takehisa Isemura, Kohtaro Iseki, Norihiko Tomooka, Chiaki Muto, Hiroshi Ehara, Ken Naito, Eri Ogiso-Tanaka, Yu Takahashi, Kazutoshi Okuno, Rusama Marubodee, Akito Kaga |
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Jazyk: | angličtina |
Předmět: |
0106 biological sciences
0301 basic medicine chemistry.chemical_classification Hydroponic culture biology Strain (biology) food and beverages Salt (chemistry) Plant Science Photosynthesis biology.organism_classification 01 natural sciences Vigna 03 medical and health sciences 030104 developmental biology chemistry Botany Genetics Cultivar Agronomy and Crop Science Ecology Evolution Behavior and Systematics 010606 plant biology & botany Primary screening |
Zdroj: | Genetic Resources and Crop Evolution. 63(4):627-637 |
ISSN: | 0925-9864 |
DOI: | 10.1007/s10722-015-0272-0 |
Popis: | Salt stress is becoming a serious problem in food production field. To find sources of salt tolerance, we screened 74 accessions of adzuki bean (Vigna angularis) and 145 accessions of cross-compatible wild relatives (seven species). We performed the primary screening in soil culture and the secondary screening in hydroponic culture, and identified JP205833 of V. riukiuensis (strain ‘Tojinbaka’) and JP107879 of V. nakashimae (strain ‘Ukushima’) as the valuable source of salt tolerance. We found these two strains had different salt tolerance mechanism, where ‘Ukushima’ prevented Na+ accumulation in leaves by filtering Na+ in roots and stems, while ‘Tojinbaka’ accumulated Na+ throughout the whole plant body. We also found ‘Tojinbaka’ and ‘Ukushima’ could retain photosynthesis even under salt stress. In addition, ‘Ukushima’ and especially ‘Tojinbaka’ showed even better growth in a salt-damaged field in Fukushima, Japan where soybean cultivar ‘Tachinagaha’ could not survive. Since both salt tolerant strains are cross-compatible with adzuki bean, our results will facilitate developing salt tolerant cultivar by introducing two different mechanisms of salt tolerance. |
Databáze: | OpenAIRE |
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