TY - JOUR
T1 - Expression of an aquaporin at night in relation to the growth and root water permeability in barley seedlings
AU - Katsuhara, Maki
AU - Koshio, Kazuki
AU - Shibasaka, Mineo
AU - Kasamo, Kunihiro
PY - 2003/12/1
Y1 - 2003/12/1
N2 - Both root and shoot of barley seedlings showed continuous growth at night as well as in the daytime. Root hydraulic conductivity (LPr) was monitored, and high LPr values were recorded at night. For revealing the molecular mechanism, the presence of an aquaporin HvPIP2;1 in barley roots was investigated. The accumulation of the HvPIP2;1 transcript was mostly observed from the evening to the middle of the night. HvPIP2;1 protein was most abundant around midnight. As for tissue localization, HvPIP2;1 protein was abundant in cells involved in water transport. These results suggested the possible involvement of HvPIP2;1 in the mechanism of water transport in roots.
AB - Both root and shoot of barley seedlings showed continuous growth at night as well as in the daytime. Root hydraulic conductivity (LPr) was monitored, and high LPr values were recorded at night. For revealing the molecular mechanism, the presence of an aquaporin HvPIP2;1 in barley roots was investigated. The accumulation of the HvPIP2;1 transcript was mostly observed from the evening to the middle of the night. HvPIP2;1 protein was most abundant around midnight. As for tissue localization, HvPIP2;1 protein was abundant in cells involved in water transport. These results suggested the possible involvement of HvPIP2;1 in the mechanism of water transport in roots.
KW - Aquaporin
KW - Barley
KW - Diurnal expression
KW - Root hydraulic conductivity
KW - Water transport at night
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U2 - 10.1080/00380768.2003.10410351
DO - 10.1080/00380768.2003.10410351
M3 - Article
AN - SCOPUS:0347031175
SN - 0038-0768
VL - 49
SP - 883
EP - 888
JO - Soil Science and Plant Nutrition
JF - Soil Science and Plant Nutrition
IS - 6
ER -