TY - JOUR
T1 - Plant Growth-Promoting Halobacteria and Their Ability to Protect Crops from Abiotic Stress
T2 - An Eco-Friendly Alternative for Saline Soils
AU - Hernández-Canseco, Jessie
AU - Bautista-Cruz, Angélica
AU - Sánchez-Mendoza, Saúl
AU - Aquino-Bolaños, Teodulfo
AU - Sánchez-Medina, Patricia S.
N1 - Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/4
Y1 - 2022/4
N2 - Arid and semi-arid soils display low productivity due to abiotic stress associated with drought and salinity. Halobacteria can increase the yield of crops grown under these types of stress. These bacteria thrive across a wide salinity range (1–25% NaCl) and also in the absence of NaCl and have direct and indirect mechanisms that promote plant growth. This review summarizes studies conducted over the past five years that have assessed the effect of halobacteria on plants and soil fertility. The criteria used in the selection of halobacteria were also reviewed. Few studies have assessed the impact of halobacteria on soil fertility. The selection of halobacteria has been based on a qualitative criterion considering the morphology of colonies grown in media enriched with salts, mainly Na+. Not all bacteria growing in salt-enriched media are capable of capturing Na+ ions. Therefore, a quantitative criterion should be applied for the selection of halobacteria, which could be their ability to capture Na+ ions in vitro. This, together with the assessment of the effect of halobacteria on soil fertility, may largely contribute to the recovery of saline soils.
AB - Arid and semi-arid soils display low productivity due to abiotic stress associated with drought and salinity. Halobacteria can increase the yield of crops grown under these types of stress. These bacteria thrive across a wide salinity range (1–25% NaCl) and also in the absence of NaCl and have direct and indirect mechanisms that promote plant growth. This review summarizes studies conducted over the past five years that have assessed the effect of halobacteria on plants and soil fertility. The criteria used in the selection of halobacteria were also reviewed. Few studies have assessed the impact of halobacteria on soil fertility. The selection of halobacteria has been based on a qualitative criterion considering the morphology of colonies grown in media enriched with salts, mainly Na+. Not all bacteria growing in salt-enriched media are capable of capturing Na+ ions. Therefore, a quantitative criterion should be applied for the selection of halobacteria, which could be their ability to capture Na+ ions in vitro. This, together with the assessment of the effect of halobacteria on soil fertility, may largely contribute to the recovery of saline soils.
KW - abiotic stress
KW - drought
KW - plant growth-promoting rhizobacteria
KW - salinity
KW - soil fertility
UR - http://www.scopus.com/inward/record.url?scp=85127908277&partnerID=8YFLogxK
U2 - 10.3390/agronomy12040804
DO - 10.3390/agronomy12040804
M3 - Artículo de revisión
AN - SCOPUS:85127908277
SN - 2073-4395
VL - 12
JO - Agronomy
JF - Agronomy
IS - 4
M1 - 804
ER -