Abstract
This study examined the potential of using the endophytic bacteria Bacillus subtilis (10-4 and 26D) to enrich hydroponically grown potato seed minitubers (Solanum tuberosum L. cv. Bashkirsky) to improve plant growth, photosynthetic pigments, yield, and quality parameters, including nutritional value (i.e., macro-/microelements, vitamin C, anthocyanins). Potato seed minitubers, obtained from in-vitro-grown microplants in a hydroponic system, were inoculated with endophytic B. subtilis and subsequently grown in pots under controlled conditions. The results demonstrated the successful colonization of seed minitubers by B. subtilis, with subsequent distribution into growing plants (roots, shoots). The endophytes accelerated the plant’s phenological shifts, resulting in earlier emergence of sprouts, budding, and flowering compared with control plants. They also had increased leaf photosynthetic pigments (chlorophyll (Chl) a, Chl b, and carotenoids), total leaf area, and positively influenced leaf proline contents. The height of plants and number of stems per plant did not change significantly upon endophyte treatment, but improved root growth was observed throughout the experiment. As a result of endophyte application, there was an increase in stolon weight, number and size of tubers, and overall tuber yield. There were no significant differences in terms of total dry matter and starch content of the tubers compared to the control group, but the sugar levels decreased and the size of the starch grains was larger in endophyte-treated tubers. Furthermore, endophyte treatment resulted in an increased accumulation of nutrients including N, P, K, Cu, and Fe, as well as vitamin C and anthocyanins in harvested tubers. These findings indicate that colonization of hydroponically grown potato seed minitubers with endophytic B. subtilis (10-4 and 26D) before planting has great potential as an eco-friendly approach to obtain higher-quality seeds and to increase tuber yield and nutritional value in field conditions.
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Claims 15
Claim · model-written summary
B. subtilis colonized seed minitubers and spread into roots and shoots.
- Taxon
- potato
Solanum tuberosumt0 - Interactor
- B. subtilis
Bacillus subtilise0symbiont - Outcome
- colonization of seed minituberse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“successful colonization of seed minitubers by B. subtilis, with subsequent distribution into growing plants (roots, shoots)”
t0“Potato”
Claim · model-written summary
Endophytes advanced sprout emergence, budding and flowering.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- The endophytese0
- Interactor
- Bacillus subtilisBacillus subtilist0symbiont
- Outcome
- emergence of sprouts, budding, and floweringe0
- Direction
- earliere0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The endophytes accelerated the plant’s phenological shifts, resulting in earlier emergence of sprouts, budding, and flowering compared with control plants”
t0“Bacillus subtilis for Improving the Yield Components and Quality of Potato”
Claim · model-written summary
Endophyte-treated plants had more leaf photosynthetic pigments.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte treatmente1
- Outcome
- leaf photosynthetic pigments (chlorophyll (Chl) a, Chl b, and carotenoids)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“They also had increased leaf photosynthetic pigments (chlorophyll (Chl) a, Chl b, and carotenoids)”
t0“Potato”
e1“The height of plants and number of stems per plant did not change significantly upon endophyte treatment”
Claim · model-written summary
Endophyte-treated plants had greater total leaf area.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte treatmente1
- Outcome
- total leaf areae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased leaf photosynthetic pigments (chlorophyll (Chl) a, Chl b, and carotenoids), total leaf area”
t0“Potato”
e1“The height of plants and number of stems per plant did not change significantly upon endophyte treatment”
Claim · model-written summary
Endophytes positively influenced leaf proline content.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte treatmente1
- Outcome
- leaf proline contentse0
- Direction
- positively influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“positively influenced leaf proline contents”
t0“Potato”
e1“The height of plants and number of stems per plant did not change significantly upon endophyte treatment”
Claim · model-written summary
Plant height did not change significantly with endophytes.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte treatmente0
- Outcome
- height of plantse0
- Direction
- did not changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The height of plants and number of stems per plant did not change significantly upon endophyte treatment”
t0“Potato”
Claim · model-written summary
Stem number did not change significantly with endophytes.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte treatmente0
- Outcome
- number of stems per plante0
- Direction
- did not changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The height of plants and number of stems per plant did not change significantly upon endophyte treatment”
t0“Potato”
Claim · model-written summary
Endophyte treatment improved root growth.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte treatmente1
- Outcome
- root growthe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved root growth was observed throughout the experiment”
t0“Potato”
e1“The height of plants and number of stems per plant did not change significantly upon endophyte treatment”
Claim · model-written summary
Endophytes increased stolon weight, tuber number and tuber size.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte applicatione0
- Outcome
- stolon weight, number and size of tuberse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As a result of endophyte application, there was an increase in stolon weight, number and size of tubers, and overall tuber yield”
t0“Potato”
Claim · model-written summary
Endophytes increased overall tuber yield.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte applicatione0
- Outcome
- overall tuber yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As a result of endophyte application, there was an increase in stolon weight, number and size of tubers, and overall tuber yield”
t0“Potato”
Claim · model-written summary
Tuber dry matter and starch content did not differ significantly from controls.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte treatmente1
- Outcome
- total dry matter and starch contente0
- Direction
- no significant differencese0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no significant differences in terms of total dry matter and starch content of the tubers compared to the control group”
t0“Potato”
e1“The height of plants and number of stems per plant did not change significantly upon endophyte treatment”
Claim · model-written summary
Endophytes decreased tuber sugar levels.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte treatmente1
- Outcome
- sugar levelse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the sugar levels decreased”
t0“Potato”
e1“The height of plants and number of stems per plant did not change significantly upon endophyte treatment”
Claim · model-written summary
Endophytes increased tuber starch grain size.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte-treatede0
- Outcome
- size of the starch grainse0
- Direction
- largere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the size of the starch grains was larger in endophyte-treated tubers”
t0“Potato”
Claim · model-written summary
Endophyte treatment increased tuber accumulation of N, P, K, Cu and Fe.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte treatmente0
- Outcome
- accumulation of nutrients including N, P, K, Cu, and Fee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“endophyte treatment resulted in an increased accumulation of nutrients including N, P, K, Cu, and Fe”
t0“Potato”
Claim · model-written summary
Endophyte treatment increased tuber vitamin C and anthocyanins.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- endophyte treatmente1
- Outcome
- vitamin C and anthocyaninse0
- Direction
- increaseinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as well as vitamin C and anthocyanins in harvested tubers”
t0“Potato”
e1“endophyte treatment resulted in an increased accumulation of nutrients including N, P, K, Cu, and Fe”
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