Releasing Au Electrons to Mo Site for Weakened Mo─H Bond of MoC MXene Cocatalyst Toward Improved Photocatalytic H Production.

MoC MXene (MoCT) is one of the most promising noble-metal-free cocatalysts for photocatalytic H production because of its excellent electron transport capacity and abundant Mo sites. However, MoCT typically exhibits a strong Mo─H bond, resulting in that the produced H difficultly desorbs from the Mo surface for the limited activity. To effectively weaken the Mo─H bond, in this paper, a regulation strategy of electron donor Au releasing electrons to the d-orbitals of Mo sites in MoCT is proposed.

Gibberellin inhibition of taproot formation by modulation of DELLA-NAC complex activity in turnip (Brassica rapa var. rapa).

Turnip is a member of the Brassica rapa species and is characterized by a swollen taproot that develops from the hypocotyl and part of the root. Gibberellins (GAs) are plant growth regulators involved in promoting cell elongation and play important roles in many aspects of plant growth and development. Interestingly, exogenous application of GA was found to significantly inhibit taproot formation in turnip.